Best-selling Basic Switch Boasting High Precision and Wide Variety

Transcription

1 General-purpose Basic Switch Z Best-selling Basic Switch Boasting High Precision and Wide Variety A large switching capacity of A with high repeat accuracy. A wide range of variations in contact form for your selection: basic, split-contact, maintained-contact, and adjustable contact gap types. A series of standard models for micro loads is available. A series of molded terminal-type models incorporating safety terminal protective cover is available. Be sure to read Safety Precautions on page and Safety Precautions for All Basic Switches. Model Number Structure Configuration Basic models Split-contact models Maintained-contact models General-purpose Drip-proof General-purpose General-purpose Without terminal protective cover With terminal protective cover Molded terminal Refer to page. Refer to page. Refer to page. Refer to page. Refer to page 4. Refer to page 4. Basic Models General-purpose A variety of actuators is available for a wide range of application. The contact mechanism of models for micro loads is a crossbar type with gold-alloy contacts, which ensures highly reliable operations for micro loads. Contact Gap: H : 0.0 mm (extra-high-sensitivity) H : 0. mm (high-sensitivity, micro voltage current load) G : 0. mm (standard) E :.8 mm (high-capacity) F :.0 mm (split-contact models) Drip-proof These Switches use a rubber boot on the actuator and adhesive fill between the case and cover to increase resistance to drips. Models with drip-proof terminal protective covers and molded terminals with resin filling are also available. Split-contact Models This type is identical in construction to the general-purpose basic switch except that it has two pairs of simultaneous acting contacts by splitting moving contacts. Since the moving contacts are connected to a common terminal, either parallel or series connection is possible. Highly reliable micro load switching is ensured if the model is used as a twin-contact switch. Maintained-contact Models The maintained-contact type has a reset button at the bottom of the switch case, in addition to the pushbutton (plunger) located on the opposite side of the reset button. Use these buttons alternately. Since the Switch has greater pretravel than overtravel, it is suitable for use in reversible control circuits, manual reset circuits, safety limit circuits, and other circuits which are not preferable for automatic resetting. (For further details, refer to individual datasheets.)

2 Model Number Legend Basic Models ()()()(4) () () Ratings 0 : 0. A (micro load) : A () Contact Gap H : 0.0 (extra-high-sensitivity) H : 0. mm (high-sensitivity, micro load) G : 0. mm (standard) E :.8 mm (high-capacity) () Actuator None : Pin plunger S : Slim spring plunger D : Short spring plunger K : Spring plunger (medium ) K : Spring plunger (high ) Q : Panel mount plunger (medium ) Q : Panel mount plunger (medium ) Q8 : Panel mount plunger (high ) Q : Panel mount roller plunger Q : Panel mount cross roller plunger L : Leaf spring (high OF) L : Roller leaf spring W : Short hinge lever W : Hinge lever (low OF) W : Hinge lever (medium OF) W : Hinge lever (high OF) W4 : Low-force hinge lever W44 : Long hinge lever W78 : Low-force wire hinge lever (low OF) W : Low-force wire hinge lever (high OF) W : Short hinge roller lever W : Hinge roller lever W : Hinge roller lever (large roller) W49 : Short hinge cross roller lever W4 : Hinge cross roller lever W77 : Unidirectional short hinge roller lever (low OF) M : Reverse hinge lever M : Reverse short hinge roller lever M : Reverse hinge roller lever NJ : Flexible rod (high OF) NJS : Flexible rod (low OF) (4) Degree of Protection None : General-purpose : Drip-proof (not include the terminals) A : Drip-proof (including the terminals) () Terminals None : Solder terminal B : Screw terminal (with toothed washer) BV : Screw terminal with terminal cover (for Z-G@A only) Note: For combinations of models, Ordering Information on page to 6. Standard Models (Drip-proof Type/Molded Terminals) () ()() (4) () Drip-proof Type () Lead Outlets None : VSF 9 : VCT () Directions of Lead Outlets (See following diagrams.) L : Left R : Right D : Descending (4) Length of Lead Outlets : m : m Split-contact Models Z-0F@Y-B () ()()(4) () () Ratings 0 : 0 A (split-contact models) () Contact Gap F : mm (high-capacity) () Actuator None : Pin plunger S : Slim spring plunger D : Short spring plunger Q : Panel mount plunger Q : Panel mount roller plunger W : Hinge lever W : Short hinge roller lever W : Hinge roller lever M : Reverse short hinge roller lever (4) Construction Y : Split-contact models () Terminals B : Screw terminal (with toothed washer) L Type D Type R Type Maintained-contact Models Z--E@R () ()() (4) () Ratings : A () Contact Gap E :.8 mm (high capacity) () Actuator None : Pin plunger S : Slim spring plunger W : Hinge lever (4) Structure R : Maintained-contact models

3 Ordering Information Z Main Unit Basic Models (General-purpose) Actuator Pin plunger Slim spring plunger Short spring plunger Panel mount plunger Panel mount roller plunger Panel mount cross roller plunger Leaf spring Roller leaf spring Short hinge lever Hinge lever Low-force hinge lever Lowforce wire hinge lever Short hinge roller lever Short hinge cross roller lever Hinge roller lever Hinge cross roller lever Unidirectional short hinge roller lever Reverse hinge lever * Reverse short hinge roller lever * Reverse hinge roller lever * Classification Standard High-sensitivity Extra-high sensitivity High-capacity Micro load Contact gap G (0. mm) H (0. mm) H (0.0 mm) E (.8 mm) H (0. mm) Terminal * Model Model Model Model Model Z-G Z-H Z-H Z-E Z-0H Z-G-B Z-H-B Z-H-B Z-E-B Z-0H-B Z-GS Z-HS Z-0HS Z-GS-B Z-HS-B Z-0HS-B Z-GD Z-HD Z-ED Z-0HD Z-GD-B Z-HD-B Z-ED-B Z-0HD-B Low Z-GQ Z-GQ-B Medium Z-GQ Z-HQ Z-EQ Z-0HQ Z-GQ-B Z-HQ-B Z-EQ-B Z-0HQ-B High Z-GQ8 Z-GQ8-B Z-GQ Z-HQ Z-EQ Z-GQ-B Z-HQ-B Z-EQ-B Z-GQ Z-HQ Z-EQ Z-GQ-B Z-HQ-B Z-EQ-B Z-GL Z-GL-B Z-GL Z-GL-B Z-GW Z-GW-B Low Z-GW Z-HW Z-GW-B Z-HW-B Medium Z-GW Z-GW-B High Z-GW Z-GW-B Z-GW4 Z-HW4 Z-GW4-B Z-HW4-B Low Z-HW78 Z-HW78-B High Z-HW Z-HW-B Z-GW Z-HW Z-EW Z-0HW Z-GW-B Z-HW-B Z-EW-B Z-0HW-B Z-GW49 Z-GW49-B Standard Z-GW-B Z-HW-B Z-GW Z-HW Large Z-GW roller Z-GW-B Z-GW4 Z-GW4-B Z-GW77 Parallel Z-GW77-B Z-GM Z-GM-B Z-GM Z-GM-B Z-GM Z-GM-B *. : Solder terminal : Screw terminal *. The pin plungers of reverse-type models are continuously pressed by the actuator levers with compression coil springs and the pin plungers are freed by operating the levers. Reverse-type models are highly vibration- and shock-resistive because the pin plungers are normally pressed.

4 Minimum Order Lot The following models are available at the minimum order lot specified below. Orders must be placed per lot. Classification Actuator Standard High-sensitivity Short spring plunger Z-GD-B Z-GQ Panel mount plunger Z-GQ-B Z-GQ8-B Z-GQ Panel mount roller plunger Z-GQ-B Panel mount cross roller plunger Z-GQ-B Short hinge lever Z-GW-B Z-GW Hinge lever Z-GW-B Low-force hinge lever Z-GW4-B Z-HW4-B Low-force hinge wire lever Z-HW78-B Z-GW Short hinge roller lever Z-GW-B Z-GW Hinge roller lever Z-GW-B Reverse short hinge roller lever Z-GM-B Reverse hinge roller lever Z-GM-B Minimum order lot (pcs) 0 Split-contact Models Contact gap F (.0 mm) Actuator Terminal * Model Pin plunger Z-0FY-B Slim spring plunger Z-0FSY-B Short spring plunger Z-0FDY-B Panel mount plunger Z-0FQY-B Panel mount roller plunger Z-0FQY-B Hinge lever Z-0FWY-B Short hinge roller lever Z-0FWY-B Hinge roller lever Z-0FWY-B Reverse short hinge roller lever * Z-0FMY-B *. : Solder terminal : Screw terminal *. The pin plungers of reverse-type models are continuously pressed by the actuator levers with compression coil springs and the pin plungers are freed by operating the levers. Reverse-type models are highly vibration- and shock-resistive because the pin plungers are normally pressed. Maintained-contact Models Actuator Pin plunger Slim spring plunger Hinge lever Model Z-ER Z-ESR Z-EWR 4

5 Basic Models (Drip-proof Models Standard, Microload ) Actuator Pin plunger Short spring plunger Spring plunger Panel mount plunger Panel mount roller plunger Panel mount cross roller plunger Leaf spring Roller leaf spring Short hinge lever Long hinge lever Hinge lever Short hinge roller lever Hinge roller lever Classification Standard Micro load Contact gap G (0. mm) H (0. mm) Drip-proof terminal protective cover Not provided Provided Not provided Terminal * Model Model Model Z-G Z-0H Z-G-B Z-GA-BV Z-0H-B Z-GD Z-0HD Z-GD-B Z-0HD-B Low Z-GK Z-GK-B High Z-GK Z-GK-B Z-GKA-BV Z-GQ Z-GQ-B Z-GQA-BV Z-GQ Z-GQ-B Z-GQA-BV Z-GQ-B Z-GQA-BV Z-GL Z-GL-B Z-GL Z-GL-B Z-GW Z-GW-B Z-GW44 Z-GW44-B Z-GW44A-BV Z-GW Z-GW-B Z-GWA-BV Z-GW Z-0HW Z-GW-B Z-GWA-BV Z-0HW-B Z-GW Z-GW-B Z-GWA-BV Unidirectional short hinge roller lever Z-GW77 Z-GW77-B Z-GW77A-BV Reverse hinge lever * Reverse short hinge roller lever * Reverse hinge roller lever * Flexible rod (coil spring) * Z-GM Z-GM-B Z-GM Z-GM-B Z-GM Z-GM-B Z-GNJ Z-GNJ-B *. : Solder terminal : Screw terminal *. The pin plungers of reverse-type models are continuously pressed by the actuator levers with compression coil springs and the pin plungers are freed by operating the levers. *. The tip is made of resin. Minimum Order Lot The following models are available at the minimum order lot specified below. Orders must be placed per lot. Classification Standard Minimum order Actuator Contact gap G (0. mm) lot (pcs) Short spring plunger Z-GD-B Spring plunger Z-GK-B Z-GW44-B Hinge lever Z-GW Z-GW-B 0 Short hinge roller lever Z-GW Z-GW-B Hinge roller lever Z-GW-B Flexible rod (coil spring) Z-GNJ-B

6 Basic Models (Drip-proof Models High-sensitivity ) Classification High-sensitivity Contact gap H (0. mm) Drip-proof terminal protective cover Not provided Actuator Terminal * Model Flexible rod (steel wire) Z-HNJS Z-HNJS-B Minimum Order Lot The following models are available at the minimum order lot specified below. Orders must be placed per lot. Classification High-sensitivity Minimum order Actuator Contact gap H (0. mm) lot (pcs) Flexible rod (steel wire) Z-HNJS-B 0 * : Solder terminal : Screw terminal Specifications Ratings (Basic, Split-contact and Maintained contact Models) Z- (Except Micro Load and Flexible Rod Models) Contact gap G, H, H, E G H, H E * Figures in parentheses are for the Z-HW, Z-HW78(-B) and Z-H(-B) models, the AC ratings of these models are and 0 V only. Z- (Flexible Rod Models) Z-0F Item Non-inductive load (A) Inductive load (A) Resistive load Lamp load Inductive load Motor load Rated NC NO NC NO NC NO NC NO voltage VAC 0 VAC 00 VAC * 8 VDC 4 VDC 0 VDC VDC 0 VDC 8 VDC 4 VDC 0 VDC VDC 0 VDC 8 VDC 4 VDC 0 VDC VDC 0 VDC Rated voltage VAC 0 VAC 8 VDC 4 VDC 0 VDC VDC 0 VDC Contact gap Series connection Parallel connection (0) * (0) * (0) * (0) * Non-inductive load (A) Inductive load (A) Resistive load Lamp load Inductive load Motor load NC NO NC NO NC NO NC NO Item Non-inductive load (A) Inductive load (A) Resistive load Lamp load Inductive load Motor load Rated NC NO NC NO NC NO NC NO voltage VAC 0 VAC 0 VDC VDC 0 VDC VAC 0 VAC 0 VDC VDC 0 VDC Z-0H Rated voltage Resistive load (A) NC NO VAC 0. 8 VDC 4 VDC 0 VDC Note:. The above current ratings are the values of the steady-state current.. Inductive load has a power factor of 0.4 min. (AC) and a time constant of 7 ms max. (DC).. Lamp load has an inrush current of 0 times the steady-state current. 4. Motor load has an inrush current of 6 times the steady-state current.. The normally closed and normally open ratings of reverse hinge lever models are opposite to each other. 6. The AC ratings of molded terminals are and 0 V only. 7. The ratings values apply under the following test conditions: () Ambient temperature: 0± C () Ambient humidity: 6±%RH () Operating frequency: 0 operations/min Use the switch within the operating range. Voltage (V) mw 0.6 ma Unusable range Minimum applicable load ma Micro load area Z-0H 0 00,000 Z-0H 800 mw 6 ma Standard load area Z-H, H Z-G Z-E Z-0FY Z-ER 00 ma 60 ma Current (ma) Z-@, Z-0FY VDC ma VDC 60 ma 6

7 Certified Standard Ratings Ask your OMRON representative for information on certified models. UL/CSA (General ratings only) Rated voltage Model Z- Z-0F Z-0H VAC A /8HP 6A /0HP 0.A 0 VAC A /4HP 6A /8HP 480 VAC A 6A 0 VDC 0.A VDC 0.A 0.6A 0 VDC 0.A 0.A TÜV (EN608-) Rated voltage Model Z-H@-B Z-G@-B Z-0H@-B 0 VAC A A VAC 0. A 0 VDC 0. A Characteristics Item Classification load and flexible rod) Z- (except micro Z-0H Z- (flexible rod) Z-0F Z-H Operating speed 0.0 mm to m/s * mm to m/s 0. mm to m/s * 0.0 mm to m/s Operating Mechanical 40 operations/min 0 operations/min 40 operations/min 40 operations/min frequency Electrical 0 operations/min Insulation resistance 00 MΩ min. (at 00 VDC) Contact resistance mω max. (initial value) 0 mω max. (initial value) mω max. (initial value) mω max. (initial value) mω max. (initial value) Dielectric strength Between contacts of same polarity Contact gap G:,000 VAC, 0/60 Hz for min Contact gap H: 600 VAC, 0/60 Hz for min Contact gap E:,00 VAC, 0/60 Hz for min Between contacts of same polarity Contact gap G:,000 VAC, 0/60 Hz for min Contact gap H: 600 VAC, 0/60 Hz for min Between contacts of same polarity Contact gap F:,00 VAC, 0/60 Hz for min Between contacts of same polarity 600VAC, 0/60Hz for min Between current-carrying metal parts and ground, and between each terminal and non-current-carrying metal parts,000 VAC, 0/60 Hz for min Vibration 0 to 0 Hz, -mm double amplitude * Malfunction 0 to Hz, -mm double amplitude * resistance 0 to Hz, -mm double amplitude * Shock Destruction,000 m/s max. resistance Malfunction 00 m/s max. * * 0 m/s max. * 00 m/s max. * * 00 m/s max. Durability Mechanical Contact gap G, H: 0,000,000 operations min. 00,000 operations 0,000,000 operations,000,000 operations min. Contact gap E: 00,000 operations min. * min. Electrical Contact gap G, H: 00,000 operations min. 00,000 operations 00,000 operations 00,000 operations min. Contact gap E: 00,000 operations min. min. min. Degree of General-purpose IP00 protection Drip-proof Equivalent to IP6 (except terminals) Degree of protection against electric shock Class I Proof tracking index (I) 7 Ambient operating General-purpose C to 80 C (with no icing) temperature Drip-proof C to 80 C (with no icing) Ambient operating General-purpose % to 8%RH humidity Drip-proof % to 9%RH Weight Approx. to 8 g Approx. 4 to 48 g Approx. 4 to 6 g Approx. g *. The values are for the plunger models. (For the lever models, the values are at the plunger section.) (Consult your OMRON representative for other models.) *. The values are for the Z-G pin plunger. *. The values are for the Z-0FY-B. *4. The values are for the pin plunger. The durability for models other than the pin plunger is 0,000,000 min. *. Malfunction: ms max. Contacts Specification Item Classification Z- Z-0H Z-0F Contacts Shape Rivet Single crossbar Rivet Material Silver Gold alloy Silver Inrush current NC 0 A max. 0. A max. 40 A max. NO A max. 0. A max. 0 A max. Engineering Data Mechanical Durability (Z-G) Durability (x0 4 operations) 0,000,000,000,000 Ambient temperature: 0± C Ambient humidity: 6±%RH Without load Operating frequency: 40 operations/min Electrical Durability (Z-G) Durability (x0 4 operations),000,000, Ambient temperature: 0± C Ambient humidity: 6±%RH Operating frequency: 0 operations/min. VAC cos dia. = VAC cos dia. = VAC cos dia. = 0 VAC cos dia. = VAC cos dia. = 00 VAC cos dia. = Overtravel (mm) Switching Current (A) 7

8 Structure Z Basic Models Contact Form (SPDT) COM Note: The Z-GM is a reversible model and the NO and NC positions are reversed. Molded Terminals COM (Black) NC NO (Red) NC (White) NO ( ) indicates wire color. Split-contact Models Contact Form COM NO Note: The NO and NC terminal arrangement is reversed for Models with reverse operation (Z-0FM). Connection Example Series Connection NC NO NC Parallel Connection Note: The Z-GM is a reversible model and the NO and NC positions are reversed. Structure Drip-proof Construction Without Terminal Protective Cover Rubber boot Fixed contact (b) Movable spring Glued surface (adhesive is filled between case and cover) Movable contact Maintained-contact Models Contact Form Spring pivot Fixed contact (a) With Terminal Protective Cover COM NC NO Rubber boot (weather-resistive chloroprene is used) Pushbutton for resetting Stainless-steel stopper (improves sealing) Rubber packing (improves sealing between switch housing and terminal cover) Terminal protective covers are sold separately for maintenance purposes, which can be, however, used with the Z-@-BV models only. For details, refer to page 4. 8

9 Dimensions Z (Unit: mm) Mounting Use M4 screws with plane washers and spring washers to mount the Switch. Tighten each mounting screw securely to a torque of.8 to.47 N m. Two, 4. dia. mounting holes or M dia. When mounting the Switch to a panel, use a tightening torque of.94 to 4.9 N m for the hexagonal nuts on the actuator. Panel Mount Plunger Panel Mount Roller Plunger dia Basic Models Terminals Screw Terminals (-B) General-purpose and Split-contact Models Basic Models Solder Terminal (-A) ("-A" is not included in the model numbers.) Split-contact Models Screw Terminals (Y-B) COM NO NC Three, M4. Terminal screws (with toothed washer) Appropriate terminal screw tightening torque: 0.78 to.8 N m. NO COM NC Note: With reverse action models (Z-GM), the positions of NO and NC terminals are reversed. Five, M.. terminal screws (with toothed washer) Appropriate terminal screw tightening torque: 0.49 to 0.78 N m. Note: With reverse action models (Z-0FM), the positions of NO and NC terminals are reversed. COM NO NO NC NC Dimensions and Operating Characteristics The models, illustrations, and graphics are for screw-terminal models (-B). The "-A" at the end of the model number for solder terminal models has been omitted. For details of the terminals, see above. Pin Plunger Z-G-B Z-H-B Z-H-B Z-E-B Z-0H-B Z-0FY-B Operating Characteristics Operating force OF Release force Pretravel Overtravel Movement Differential Operating Position.± dia. hole. dia..sr * 4. * Stainless-steel plunger Model Z-G-B Z-H-B Z-H-B Z-E-B Z-0H-B Z-0FY-B.4 to.4 N 0.4 mm 0. mm 0.0 mm.96 to. N 0. mm 0. mm 0.00 to mm.96 to.7 N 0. mm 0. mm 0.0 mm.9±0.4 mm 6. to 7.8 N 0.8 mm 0. mm 0. mm.4 N max N 0. mm 0. mm 0.04 mm 4.46 to 7.6 N 0.8 mm 0. mm 0. mm Slim Spring Plunger Z-GS-B Z-0HS-B Z-HS-B Z-0FSY-B 9 dia..±0. * dia. hole. dia. 4 dia. 4. * Stainless-steel plunger (flat, R chamfered) OF Z-GS-B Z-HS-B Z-0HS Z-0FSY-B.4 to.4 N 0.4 mm 0.0 mm.96 to.79 N 0. mm 0.0 mm 8.±0. mm.4 N max N 0. mm 0.0 mm 4.46 to 7.6 N 0.8 mm 0. mm Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. 9

10 Short Spring Plunger Z-GD-B Z-0HD-B Z-HD-B Z-0FDY-B Z-ED-B.±0. SR * dia. hole. dia. 0 dia. 7. dia. 4. * Plated iron plunger OF Z-GD-B Z-HD-B Z-ED-B Z-0HD-B Z-0FDY-B.4 to.4 N 0.4 mm 0.0 mm.96 to.79 N 0. mm 0.0 mm 6. to 7.8 N 0.8 mm 0. mm ±0. mm.4 N max N 0. mm 0.0 mm 4.46 to 7.6 N 0.8 mm 0. mm Panel Mount Plunger Z-GQ-B Z-0HQ-B Z-HQ-B Z-0FQY-B Z-EQ-B Z-GQ-B * Z-GQ8-B *. *4 6. * The external dimensions of the actuator vary. 6 dia..±0. SR * dia. hole 8. dia. M mounting screw *. Stainless-steel plunger *. Two hexagonal nuts ( t 4 width across flats) *. Two lock nuts ( t.6 width across flats) *4. Incomplete screw part with a maximum length of mm. * * Note:. Do not use the M mounting screw and the case mounting hole at the same time, or excessive pulling force will be imposed on the switch and the case and cover may be damaged.. On the model Z-GQ-B, can be set to a value larger than that for the Z- GQ.. On the model Z-GQ8-B, operating position can be adjusted by providing a screw in the plunger section. 4. On the model Z-GQ8-B, the M hole with a depth of 0 mm is a through hole. Take precautions so that no water or screw lock agent penetrates into the hole. Z-GQ-B Z-HQ-B Z-EQ-B Z-0HQ-B Z-0FQY-B Z-GQ-B Z-GQ8-B OF.4 to.4 N.96 to.79 N 6. to 7.8 N.4 N max N 4.46 to 7.6 N.4 to.4 N.4 to.4 N 0.4 mm 0. mm 0.8 mm 0. mm 0.8 mm 4. mm 0. mm. mm 0.0 mm. mm 0.0 mm. mm 0. mm. mm 0.0 mm. mm 0. mm. mm. mm. mm 0.0 mm.8±0.8 mm 8.8±0.8 mm.± mm Panel Mount Roller Plunger Z-GQ-B Z-EQ-B Z-HQ-B Z-0FQY-B.±0..7 dia. 4.8 * *. 6. * 6 dia dia. hole M mounting screw *. Stainless-steel roller *. Two hexagonal nuts ( t 7 width across flats) *. Incomplete screw part with a maximum length of mm. Note: Do not use the M mounting screw and the case mounting hole at the same time, or the case may be damaged. OF Z-GQ-B Z-HQ-B Z-EQ-B Z-0FQY-B.4 to.4 N 0.4 mm.8 mm 0.0 mm.96 to.79 N 0. mm.8 mm 0.0 mm.4±. mm 6. to 7.8 N 0.8 mm.8 mm 0. mm 4.46 to 7.6 N mm. mm 0. mm Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. 0

11 Panel Mount Cross Roller Plunger Z-GQ-B Z-EQ-B.±0..7 dia. 4.8 * Z-HQ-B Z-GQ-B Z-HQ-B OF.4 to.4 N.96 to.79 N * 0.4 mm 0. mm dia. hole M.8 mm.8 mm mounting screw 0.0 mm 0.0 mm * 6. 6 dia..4±. mm Note: Do not use the M mounting screw and the case mounting hole at the same time, or the case may be damaged. *. Stainless-steel roller *. Two hexagonal nuts ( t 7 width across flats) *. Incomplete screw part with a maximum length of mm. OF Z-EQ-B 6. to 7.8 N 0.8 mm.8 mm 0. mm.4±. mm Leaf Spring Z-GL-B 49.6±0.8 t = 0.* dia. hole * Stainless-steel spring lever OT *min..8 N 0.4 N. mm max. 0.6 mm 7.4±0.8 mm * When operating, be sure not to exceed. Roller Leaf Spring Z-GL-B 46 ±0.8 t = 0. * 9. dia. 4 (plastic toller) dia. hole.9 * Stainless-steel spring lever OT *min..8 N 0.4 N. mm max..8 mm 8.6±0.8 mm * When operating, be sure not to exceed. Short Hinge Lever Z-GW-B 8.R dia. hole max. 7 N 0.7 N mm mm 4.8 mm 9±0.8 mm Hinge Lever Z-GW-B Z-GW-B Z-HW-B Z-0FWY-B Z-GW-B (Lever Length: 6R)* 6.R dia. hole * The external dimensions of the actuator vary. OF Z-GW-B Z-HW-B Z-GW-B Z-0FWY-B Z-GW-B 0.69 N max. 0.4 N.6 mm.7 mm 0.66 N max. 0.4 N.6 mm 0.6 mm.47 to.96 N 0.9 N.6 mm.7 mm 0.88 N max. 0.4 N.6 mm.4 mm 0.78 N max. 0. N 4.8 mm. mm max. 8. mm 7.4 mm 8. mm 9.8 mm 7. mm 9±0.8 mm Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.

12 Low-force Hinge Lever Z-GW4-B 6.R dia. hole 74 mn 4. mn 0 mm.6 mm.7 mm 9±0.8mm Z-HW4-B 0R t = 0.8 * dia. hole 8.8 mn 4.90 mn 9.8 mm 0 mm mm 9.8± Low-force Wire Hinge Lever Z-HW-B Z-HW78-B (Lever Length: 0R) * * The external dimensions of the actuator vary. Note: AC electrical ratings: 0 A, /0 V. max. 6.R dia. hole * Stainless-steel wire lever Z-HW-B 8.8 mn 4.90 mn 8. mm.6 mm 0.6 mm 9± mm Z-HW78-B mn.94 mn 0 mm 6 mm mm 0± mm Short Hinge Roller Lever Z-GW-B Z-0HW-B Z-HW-B Z-0FWY-B Z-EW-B Z-GW-B * Z-HW-B * Z-0FWY-B * 6.6R dia. 4 (plastic roller) max. * The external dimensions of the actuator vary. (Lever Length: 48.R) dia. hole Z-GW-B Z-HW-B Z-EW-B Z-0HW-B Z-0FWY-B Z-GW-B Z-HW-B Z-0FWY-B 7 N 0.4 N.4 mm 0. mm. mm 0.±0.4 mm.47 N 0.4 N.4 mm 0.4 mm.94 N 0.4 N.4 mm. mm. mm 0.±0.4 mm 7 N 0.7 N.4 mm 0. mm. mm 0.±0.4 mm.4 N 0.4 N.4 mm mm 4.8 mm 0.±0.4 mm 0.98 N 0. N 4 mm.0 mm 6. mm 0.±0.8 mm 0.84 N 0. N 4 mm 0.6 mm.7 N 0. N 4 mm mm 7.4 mm 0.±0.8 mm Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.

13 Short Hinge Cross Roller Lever Z-GW49-B Z-GW4-B (Lever Length: 48.7R) * 7.R 9. dia. 4 (plastic roller) * The external dimensions of the actuator vary dia. hole max. Z-GW49-B.67 N 0.4 N.4 mm 0. mm. mm ±0.4 mm Z-GW4-B 0.98 N 0. N 4 mm mm 7. mm ±0.8 mm Hinge Roller Lever Z-GW-B 0R t = * 0 dia. 4 R (plastic roller) dia. hole max N 0. N 4 mm 47. mm 4.±0.8 mm Unidirectional Short Hinge Roller Lever Z-GW77-B Operating direction.r 4. max R 9. dia. 4 (plastic roller) dia. hole max..67 N 0.4 N.4 mm 0. mm 4.6 mm 4.±0.8 mm Reverse Hinge Lever ** Z-GM-B 8.6 6R dia. hole max..67 N 0.7 N.6 mm 0.89 mm.8 mm 9±0.8 mm Reverse Short Hinge Roller Lever ** Z-GM-B Z-0FMY-B R dia. 4 (plastic roller) dia. hole max. Z-GM-B.8 N.67 N mm 0.8 mm.8 mm 9.4±0.4 mm Z-0FMY-B 6.7 N.67 N mm 0.6mm mm 9.4±0.4 mm Reverse Hinge Roller Lever ** Z-GM-B R t = * 9. dia. 4 (plastic roller) dia. hole max.. N 0. N 4 mm 0.64 mm mm 0.±0.8 mm ** The pin plungers of reverse-type models are continuously pressed by the actuator levers with compression coil springs and the pin plungers are freed by operating the levers. Reverse-type models are highly vibration- and shock-resistive because the pin plungers are normally pressed. Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.

14 Basic Models (Drip-proof) without Terminal Protective Cover Terminals (Molded Terminals : Refer to page.) Without Terminal Protective Cover 0 0 COM NO NC Three, M4. Terminal screws (with toothed washer) Note: With reverse action models (Z-GM), the positions of NO and NC terminals are reversed. Dimensions and Operating Characteristics The above illustration is for model without terminal protective cover. Pin Plunger Z-G-B Z-0H-B 6SR *.± dia. hole.9 dia..9 * Stainless-steel plunger OF Z-G-B Z-0H-B.4 to 4. N.4 N max N. mm. mm 0. mm 0. mm 0.06 mm 0.06 mm.9±0.4 mm Short Spring Plunger Z-GD-B Z-0HD-B SR *.± dia. hole dia. 7. dia..9 * Stainless-steel plunger Z-GD-B Z-0HD-B.0 N.6 N 0.78 N.8 mm.9 mm 0.06 mm 0.06 mm ±0. mm Spring Plunger Z-GK-B SR *.±0. 7 dia. 7. dia dia. hole.9 * Stainless-steel plunger.0 N. mm 0.06 mm 8.±0. mm Z-GK-B SR *. ±0. 7 dia. 8. dia dia. hole.4 ±0.. * Stainless-steel plunger.0 N.4 mm. mm 0.06 mm 7.8±. mm Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. 4

15 Panel Mount Plunger Z-GQ-B. 6. *4 6 dia..±0. SR * dia. hole 8. dia. *. Stainless-steel plunger *. Two hexagonal nuts ( t 4 width across flats) *. Two lock nuts ( t.6 width across flats) *4. Incomplete screw part with a maximum length of mm. M Mounting screw * *.0 N.8 mm. mm 0.06 mm.8±0.8 mm Note: Do not use the M mounting screw and the case mounting hole at the same time, or the case may be damaged. Panel Mount Roller Plunger Z-GQ-B.±0..7 dia. 4.8 *. * 6. 6 dia dia. hole *. Stainless-steel roller *. Two hexagonal nuts ( t 7 width across flats) *. Incomplete screw part with a maximum length of mm. * M mounting screw.0 N.8 mm.8 mm 0.06 mm.4±. mm Note: Do not use the M mounting screw and the case mounting hole at the same time, or the case may be damaged. Panel Mount Cross Roller Plunger Z-GQ-B.±0..7 dia. 4.8 *. 6. * 6 dia..4 ± dia. hole *. Stainless-steel roller *. Two hexagonal nuts ( t 7 width across flats) *. Incomplete screw part with a maximum length of mm. * M mounting screw.0 N.8 mm.8 mm 0.06 mm.4±. mm Note: Do not use the M mounting screw and the case mounting hole at the same time, or the case may be damaged. Leaf Spring Z-GL-B 49.6±0.8 t = 0. * dia. hole * Stainless-steel spring lever OT *min..96 N 0.4 N. mm max. 0.6 mm 7.±0.8 mm * When operating, be sure not to exceed. Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.

16 Roller Leaf Spring Z-GL-B 46 ±0.8 t = 0.* 9. dia. 4 (plastic roller) dia. hole 7.4 ±0..9 OT *min..96 N 0.4 N. mm max..8 mm 8.6±0.8 mm * When operating, be sure not to exceed. Short Hinge Lever Z-GW-B 8.R t = * dia. hole dia max..86 N 0.7 N mm mm mm 9±0.8 mm Long Hinge Lever Z-GW44-B 00R ± dia. hole max N 0.4 N.6 mm. mm mm 9±. mm Hinge Lever Z-GW-B 6.R t = * ± dia. hole 7.4 ±0. max N 0.4 N.6 mm mm 8. mm 9±0.8 mm Short Hinge Roller Lever Z-GW-B Z-0HW-B 6.6R 9. dia. 4 (plastic roller) dia. hole.4 ±0. max. Z-GW-B.96 N 0.4 N.4 mm 0.8 mm.9 mm 0.±0.4 mm Z-0HW-B.96 N 0.7 N.4 mm 0.8 mm Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. 6

17 Hinge Roller Lever Z-GW-B 48.R 9. dia. 4 (plastic roller) ± dia. hole max..7 N 0. N 4 mm 6. mm 0.±0.8 mm Unidirectional Short Hinge Roller Lever Z-GW77-B Operating direction.r 4. max R 9. dia. 4 (plastic roller) dia. hole 7.4 ±0. max..77 N 0.49 N.4 mm 0.8 mm 4.6 mm 4.±0.8 mm Reverse Hinge Lever * Z-GM-B 8.6 6R dia. hole.4 ± ±0. max..96 N 0.7 N.6 mm 0.89 mm.8 mm 9±0.8 mm Reverse Short Hinge Roller Lever * Z-GM-B dia. 4 (plastic roller) 8.R dia. hole max..69 N.67 N mm 0.8 mm.8mm 9.4±0.4mm Reverse Hinge Roller Lever * Z-GM-B R 9. dia. 4 (plastic roller) dia. hole.4 ± ±0. max..6 N 0. N 4 mm 0.64 mm mm 0.±0.8 mm * The pin plungers of reverse-type models are continuously pressed by the actuator levers with compression coil springs and the pin plungers are freed by operating the levers. Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. 7

18 Flexible Rod (Coil Spring) Z-GNJ-B 6. dia.. dia. * Nylon rod 8 0 Operating range * (.) 4.4 Rubber cap dia. (.6) 6..± dia. hole 0.49 N (0 mm) TT max. 40 mm *. Operation is possible in any direction other than the axial direction (indicated by the arrow ). *. Use only the area within the top 0 mm of the rod as the operating part. (Do not use the area that falls within 80 mm from the mounting hole as the operating part. Using this area may cause damage to the nylon rod. Flexible Rod (Steel Wire) Z-HNJS-B * 0 Operating range * -dia. stainless steel wire * 00±0.4 (0.) () Four, M set screws with hexagonal holes Rubber cap dia. (.8) 6..± dia. hole 0. N ( mm).4 ±0. *. Operation is possible in any direction other than the axial direction (indicated by the arrow ). *. Use only the area within the top 0 mm of the rod as the operating part. (Do not use the area that falls within 00 mm from the mounting hole as the operating part. Using this area may cause damage to the steel wire.) *. The steel wire can be replaced if damaged. (Model: Lever for HNJS) Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. 8

19 Basic Models (Drip-proof) with Terminal Protective Cover Dimensions and Operating Characteristics Pin Plunger 6SR * Z-GA-BV.±0..9 dia..4 ± dia. hole (8.8) 4.7 () 7.4 ±0. * Stainless-steel plunger.4 to 4. N. mm 0. mm 0.06 mm.9±0.4 mm Z-GKA-BV 7 dia. SR *. ±0. 8. dia ± dia. hole (8.8) 4.7 () 7.4 ±0. * Stainless-steel plunger.0 N.4 mm. mm 0.06 mm 7.8±. mm Panel Mount Plunger Z-GQA-BV SR *.± dia dia. hole (8.8) 8. dia. M P = () *. Stainless-steel plunger *. Two hexagonal nuts ( t 4 width across flat) *. Two lock nuts ( t.6 width across flats) * *.0 N.8 mm. mm 0.06 mm.8±0.8 mm Note: Do not use the M mounting screw and the case mounting hole at the same time, or the case may be damaged. Panel Mount Roller Plunger Z-GQA-BV.± dia..7 dia. 4.8 * * M P =.0 N.8 mm.8 mm 0.06 mm.4±. mm.4 ± dia. hole (8.8) () *. Stainless-steel roller *. Two hexagonal nuts ( t 7 width across flats) Note: Do not use the M mounting screw and the case mounting hole at the same time, or the case may be damaged. Panel Mount Cross-roller Plunger Z-GQA-BV. ± dia..7 dia. 4.8 * * M P =.0 N.8 mm.8mm 0.06 mm.4±. mm.4 ± dia. hole (8.8) () 7.4 ±0. *. Stainless-steel roller *. Two hexagonal nuts ( t 7 width across flats) Note: Do not use the M mounting screw and the case mounting hole at the same time, or the case may be damaged. Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. 9

20 Long Hinge Lever Z-GW44A-BV 00R dia. hole (8.8) () max N 0.4 N.6 mm. mm mm 9±. mm Hinge Lever Z-GWA-BV 6.R dia. hole (8.8).9 () max N 0.4 N.6 mm mm 8. mm 9±0.8 mm Short Hinge Roller Lever Z-GWA-BV 6.6R 9. dia. 4 (plastic roller) ± dia. hole (8.8).9 () 7.4 ±0. max..96 N 0.4 N.4 mm 0.8 mm.9 mm 0.±0.4 mm Hinge Roller Lever Z-GWA-BV 48.R 9. dia. 4 (plastic roller) ± dia. hole (8.8).9 () max..7 N 0. N 4 mm 6. mm 0.±0.8 mm Unidirectional Short Hinge Roller Lever Z-GW77A-BV Operating direction 9. dia. 4 (plastic roller).9r 4. max R dia ± dia. hole.8 (8.8) () max..77 N 0.49 N.4 mm 0.8 mm 4.6 mm 4.±0.8 mm Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. 0

21 Basic Models (Drop-proof) with Modeled terminals Molded Terminals L/R Type (The following illustration is the R type.) D Type a c a b 8 Lead Wire Specifications Specifications Lead wire VSF (single-core, vinyl cord) VCT (vinyl-insulated cable) Size (mm) Lead wire Nominal cross sectional area (mm). a b c VSF 4 VCT 9 0 Finished outer diameter (mm) Approx.. dia. Three-core: approx. 0. dia. Note:. No models with molded terminals are approved by UL, CSA, or EN.. Molded terminals are not available on all models. Contact your OMRON representative for applicable products. b Connection to terminal Black :COM White :NO Red :NC Length (m), c Size (mm) Lead wire a b c VSF 4 VCT 9 6 Maintained-contact Models Dimensions and Operating Characteristics Pin Plunger Z-ER. ± dia. hole. dia..sr * 4.±0. NO COM NC Reset button * *. Stainless steel plunger *. Plastic plunger Reset position 7. min. 6.4 dia. Reset free position 9. max. Plunger Reset Button.96 to.0 N 0.4 mm 0. mm.9±0.4 mm 0. to.79 N 0.4 mm Slim Spring Plunger Z-ESR 9 dia.. ±0. * 4. ±0..4 ± dia. hole dia. 4 dia. Reset position 7. min. 6.4 dia. Reset free Reset button * position 9. max. *. Stainless steel plunger (tip only, flat, R bevel). *. Plastic plunger Plunger Reset Button.6 N 0.4 mm 8.±0. mm.79 N 0.4 mm Hinge Lever Z-EWR 6.R 4.9 Lever Tip ±0..4 ± dia. hole 6.4 Reset position 7. min. 6.4 dia. Reset button * *. Stainless steel lever *. Plastic plunger Reset free position 9. max. max. Reset Button 0.4 N.6 mm 8. mm 9±0.8 mm.94 N 0.4 mm Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.

22 Safety Precautions Z For details, be sure to read Safety Precautions for All Basic Switches. Terminal Connection When soldering lead wires to the Switch, make sure that the capacity of the soldering iron is 60 W maximum. Do not take more than s to solder any part of the Switch. The characteristics of the Switch will deteriorate if a soldering iron with a capacity of more than 60 W is applied to any part of the Switch for s or more. Operation Make sure that the switching frequency or speed is within the specified range..if the switching speed is extremely slow, the contact may not be switched smoothly, which may result in a contact failure or contact welding..if the switching speed is extremely fast, switching shock may damage the Switch soon. If the switching frequency is too high, the contact may not catch up with the speed. The rated permissible switching speed and frequency indicate the switching reliability of the Switch. The life of a Switch is determined at the specified switching speed. The life varies with the switching speed and frequency even when they are within the permissible ranges. In order to determine the life of a Switch model to be applied to a particular use, it is best to conduct an appropriate durability test on some samples of the model under actual conditions. Make sure that the actuator travel does not exceed the permissible OT position. The operating stroke must be set to 70% to 00% of the rated OT. Mounting Location Do not use the switch alone in atmospheres such as flammable or explosive gases. Arcing and heat generation associated with switching may cause fires or explosions. Switches are generally not constructed with resistance against water. Use a protective cover to prevent direct spraying if the switch is used in locations subject to splashing or spurting oil or water, dust adhering. Install the switch in a location that is not directly subject to debris and dust from cutting. The actuator and the switch body must be protected from accumulated cutting debris and dirt. Precautions for Safe Use Precautions for Use Terminal box Terminal box Do not use the switch in locations subject to hot water (greater than 60 C) or in water vapor. Do not use the switch outside the specified temperature and atmospheric conditions. The permissible ambient temperature depends on the model. (Refer to the specifications in this catalog.) Sudden thermal changes may cause thermal shock to distort the switch and result in faults. Mount a cover if the switch is to be installed in a location where worker inattention could result in incorrect operation or accidents. (preventing malfunctions) Separate the installation location from heat sources. Subjecting the switch to continuous vibration or shock may result in contact failure or faulty operation due to abrasion powder and in reduced durability. Excessive vibration or shock will cause the contacts to operate malfunction or become damaged. Mount the switch in a location that is not subject to vibration or shock and in a direction that does not subject the switch to resonance. If silver contacts are used with relatively low frequency for a long time or are used with microloads, the sulfide coating produced on the contact surface will not be broken down and contact faults will result. Use a microload switch that uses gold contacts. Do not use the switch in atmospheres with high humidity or heat or in harmful gases, such as sulfide gas (HS, SO), ammonia gas (NH), nitric acid gas (HNO), or chlorine gas (Cl). Doing so may impair functionality, such as with damage due to contacting faults or corrosion. The switch includes contacts. If the switch is used in an atmosphere with silicon gas, arc energy may cause silicon oxide (SiO) to accumulate on the contacts and result in contact failure. If there is silicon oil, silicon filling, silicon wiring, or other silicon products in the vicinity of the switch, use a contact protection circuit to limit arcing and remove the source of the silicon gas. Mounting Always make sure that the power is turned OFF before mounting, removing, or wiring the Switch, or performing maintenance. Electric shock or burning may occur. Selecting Models We recommend using Drip-proof Models (protection equivalent to IP6) in locations subject to floating dirt and dust. Other models do not have a protective structure. Wiring For wiring, use a wire size that is appropriate for the applied voltage and the supplied current. When soldering the Switch, make sure that the capacity of the soldering iron is 60 W maximum. Do not take more than s to solder any part of the Switch. Using the Switch with incomplete soldering may result in errors and heat, which may cause burning. The characteristics of the Switch will deteriorate if a soldering iron with a capacity of more than 60 W is used or if any part of the Switch is soldered for 6 s or longer.

23 Tightening The suitable tightening torque for screw terminals is given below. Screw terminals except for those on Split-contact Models (Z-0FY-B) : 0.78 to.8 N m Screw terminals on Split-contact Models (Z-0FY-B) : 0.49 to.8 N m Operation Make sure that the switching speed and frequency are is within the specified ranges.. If the switching speed is extremely slow, the contacts may not be switched smoothly, which may result in a contact failure or contact welding.. If the switching speed is extremely fast, switching shock may damage the Switch prematurely. If the switching frequency is too high, the contacts may not be able to keep up with the speed. The rated permissible switching speed and frequency indicate the switching reliability of the Switch. The life of a Switch is determined at the specified switching speed. The life varies with the switching speed and frequency even when they are within the permissible ranges. Always conduct appropriate durability tests under actual conditions before using a Switch. Make sure that the actuator travel does not exceed the permissible OT position. The operating stroke must be set to 70% to 00% of the rated OT. Panel Mount Switch (Z-@Q@, Z-0@Q@) When mounting the panel mount plunger model with screws on a side surface, be careful of the dog angle and operation speed. Excessive dog angle or operation speed may damage the Switch. When using the panel mount plunger model mounted with screws on a side surface, be careful not to apply a large shock. Applying a shock exceeding,000 m/s may damage the Switch. When using the panel mount plunger model mounted with screws on a side surface, remove the hexagonal nuts from the actuator. High-sensitivity Switch (Z-H)/ Extra-high-sensitivity Switch (Z-H) When using the Switch in a DC circuit, be sure to provide an arc suppressor as well because the small contact gap of the Switch may result in contact troubles. In an application where a high repeat accuracy is required, limit the current that flows through the Switch to within 0. A. Also, use a relay to control a high-capacity load if the Switch is connected to such a load. (In this case, the exciting current of the relay coil is the load of the Switch.) Do not apply a force of 9.6 N or higher to the pin plunger. Exercise care that the environment conditions such as temperature and humidity do not change abruptly. Micro Load Applicable Range Using a model for ordinary loads to open or close the contact of a micro load circuit may result in faulty contact. Use models that operate in the following range. However, even when using micro load models within the operating range shown here, if inrush current occurs when the contact is opened or closed, it may increase contact wear and so decrease durability. Therefore, insert a contact protection circuit where necessary. The minimum applicable load is the N-level reference value. This value indicates the malfunction reference level for the reliability level of 60% (λ 60). The equation, λ 60 = /operations indicates that the estimated malfunction rate is less than /,000,000 operations with a reliability level of 60%. DC voltage (V) 0 4 Unusable range Minimum applicable load 0 0. mw 0.6 ma ma Operating range for micro load models Z-0H 0 00,000 Z-0H 800 mw 6 ma Operating range for general load models Z-H, H Z-G Z-E Z-0FY Z-ER 00 ma 60 ma Current (ma) Z-@, Z-0FY ma at VDC 60 ma at VDC Models with Drip-proof Terminal Cover (Z-@A-BV) Wiring To attach the Protective Cover to the case, hold the cover in almost parallel to the case and then push it to the case. If the cover is pushed diagonally, the rubber packing may slip off, degrading the sealability of the Switch. Terminal with toothed washer Rubber packing Use round solderless terminals having the 4. dia. following dimensions to connect leads to the terminals. Tighten the screws of terminals to 8 a torque of 0.78 to.8 N m. Use the terminal shown below. 0 max. A cable 8. to 0. mm in diameter can be applicable to the sealing rubber of the lead outlet of the Switch. A two-core or three-core VCT cable having a cross-sectional area of. mm is especially suitable for this. Use M4 small screws with spring toothed washer are used as the terminal screws.

24 Drip-proof Switch The Switch is not perfectly oil-tight; so do not dip it in oil or water. The rubber boots are made from weather-resistive chloroprene rubber. Do not use Basic Switches in places with radical changes in temperature. Rubber boots and rubber caps will tend to harden at lower ambient temperatures. If an Actuator is used in a pressed state for an extended period of time at low temperatures, it may return slowly or it may not return at all. OMRON can provide special Actuators for use at low temperature with rubber boots or rubber caps made of silicon rubber, which has superior resistance to cold. Ask your OMRON representative for details. Split-contact Switch (Z-0F@Y) The applicable current varies depending on how the contacts are used. If the Switch is connected in series, the Switch can endure a current to times higher than the current that can be applied in parallel connection. Flexible Rod Switch (Z-@NJ@, Drip-proof) When the rod is fully swung, the Switch may operate when the lever returns, causing chattering. Use a circuit that compensates for chattering wherever possible. Do not switch the rod to the fullest extent when the Switch is to break a power circuit because such a practice may cause metal deposition to occur between the mating contacts of the Switch. Other Precautions Do not apply excessive force with a screwdriver or other tool when attaching or removing the Protective Cover. Doing so may deform the Switch. Screwdriver The Drip-proof Terminal Protective Cover can be sued only with Switches with model numbers ending in "-BV." Only the Terminal Protective Cover is available for maintenance. Accessories (Order Separately) Refer to Z/A/X/DZ Common Accessories for details about Terminal Covers, Separators, and Actuators. Drip-proof Terminal Cover (Order Separately) The Drip-proof Terminal Protective Cover is provided for maintenance for Z-@A-BV Switches. Ordering Information Dimensions (Unit: mm) Name Model Drip-proof Terminal Protective Cover AP-DV Mounting bracket 4

25 Safety Precautions for All Basic Switches For the individual precautions for a Switch, refer to the precautions in the section for that Switch. Always observe the following cautions to ensure safety. Mounting Before mounting, dismounting, wiring, or inspecting a switch, be sure to turn OFF the power supply to the switch, otherwise an electric shock may be received or the switch may burn. Wiring Do not perform wiring when power is being supplied to a switch. Also, do not touch any of the charged terminals when power is being supplied. Otherwise, electric shock may be received. Follow the instructions provided in Use for all wiring and soldering work. Using a switch with improper wiring or soldering may result in abnormal heating when power is supplied, possibly resulting in burning. Contact Load Select suitable switch ratings after confirming contact load. If the contact load is excessive for the contacts, the contacts may weld or shift, possibly resulting in short-circuits or burning when power is supplied. Load Types Some types of load have a large difference between steady-state current and inrush current, as shown in the following diagram. Select a switch with ratings suitable for the type of load. The higher the inrush current in the closed circuit is, the more the contact abrasion or shift there will be. Consequently, contact welding or shifting may occur, possibly resulting in short-circuits or burning. Types of Load vs. Inrush Current I (A) Solenoid ( 0 to 0) Precautions for Safe Use Precautions for Use For details, refer to the Precautions for Use in the Basic Switches Technical Guide. Incandescent lamp ( 0 to ) Motor ( to 0) Relay ( 4 to ) Operating Atmosphere Do not use switches in atmospheres containing combustible or explosive gases. Arc or heat generated by switching may cause fires or explosions. Shock on Individual Switches Do not drop or disassemble switches. Not only will characteristics be jeopardized, but also damage, electric shock, or burning may result. Durability The durability of a switch greatly varies with switching conditions. Before using a switch, be sure to test the switch under actual conditions in the actual application and to use the switch within the switching operations causing no problem. If a deteriorated switch is used continuously, insulation failures, contact welding, contact failures, switch damage, or switch burnout may result. t C-

26 Precautions for Use of Basic Switches Technical Guide for Basic Switches Using Switches When switches are actually used, unforeseen accidents may occur. Before using a switch, perform all possible testing in advance. Unless otherwise specified, ratings and performances given in this catalog are for standard test conditions (i.e., to C, % to 7% humidity, and 86 to 06 kpa atmospheric pressure). When performing testing in the actual application, always use the same conditions as will be used in actual usage conditions for both the load and the operating environment. Reference data provided in this catalog represents actual measurements from production samples in graph form. All reference data values are nominal. All ratings and performance values provided in this catalog are the results of a single test each rating and performance value therefore may not be met for composite conditions. Selecting Switch Select an appropriate switch for the operating environment and load conditions. Use the Selection Guide to select a suitable switch for the rated current, operating load, actuator type, and operating environment. It is not recommended to use a switch for a large current to switch a micro current, in terms of contact reliability. Select a switch that is suitable for the current actually being switched. Consider using a sealed switch in environments subject to water droplets. Electrical Conditions. Operating Load The switching capacity of a switch significantly differs depending on whether the switch is used to break an alternating current or a direct current. Be sure to check both the AC and DC ratings of a switch. The control capacity will drop drastically if it is a DC load. This is because a DC load, unlike an AC load, has no current zero cross point. Therefore, if an arc is generated, it may continue for a comparatively long time. Furthermore, the current direction is always the same, which results in contact relocation phenomena, and the contacts hold each other with ease and will not separate if the surfaces of the contacts are uneven. If the load is inductive, counter-electromotive voltage will be generated. The higher the voltage is, the higher the generated energy is, which increase the abrasion of the contacts and contact relocation phenomena. Make sure to use a switch within the rated conditions. If a switch is used for switching both micro and high-capacity loads, be sure to connect relays suitable to the loads. The rated loads of a switch are according to the following conditions: Inductive Load: A load having a minimum power factor of 0.4 (AC) or a maximum time constant of 7 ms (DC). Lamp Load: A load having an inrush current ten times the steady-state current. Motor Load: A load having an inrush current six times the steadystate current. Note: It is important to know the time constant (L/R) of an inductive load in a DC circuit. Inrush Current I (A). Using Switches with Electronic Circuits If bouncing or chattering of the contacts results and causes problems, take the following countermeasures. (a) Insert an integral circuit. (b) Suppress the generation of pulse from the contact bouncing or chattering of the contacts so that it is less than the noise margin of the load. Use microload switches that use gold contacts particularly if high contact reliability is required. In order to protect the Switch from damage due to short-circuits, be sure to connect a quick-response fuse with a breaking current to times larger than the rated current to the Switch in series. When complying with EN approved ratings, use a 0-A IEC compliant gi or gg fuse.. Using Switches for Micro Loads Contact faults may occur if a Switch for a general-load is used to switch a micro load circuit. Use switches in the ranges shown in the diagram on the right. However, even when using micro load models within the operating range shown here, if inrush current occurs when the contact is opened or closed, it may increase contact wear and so decrease durability. Therefore, insert a contact protection circuit where necessary. The minimum applicable load is the N-level reference value. This value indicates the malfunction reference level for the reliability level of 60% (λ60). The equation, λ60 = /operations indicates that the estimated malfunction rate is less than /,000,000 operations with a reliability level of 60%. Voltage (V) 0 mw 0.6 ma 800 mw 6 ma i (Inrush current) 4 Operating range for micro-load models Operating range for standard models Unusable range ma 00 ma 60 ma io (Steady-state current) t ,000 Current (ma) C-