Safety Limit Switch

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1 Safety Limit Switch CSM_D4B-_N_DS_E_5_1 Snap-action contact with certified direct operation certification. Maintenance, seal, and resistance to shock increased and direct mechanism added. Three-conduit switches and 2NC switches are also available. Note: Contact your sales representative for details on models with safety standard certification. Direct mechanism (NC contacts only) added to enable contacts when faults occur, such as fused contacts. Safety of lever settings ensured using a mechanism that engages a gear between the operating position indicator plate and the lever. Equipped with a mechanism that indicates the applicable operating zone, as well as push-button switching to control left and right motion. Head seal structure strengthened to improve seal properties (TÜV: IEC IP7, UL: NEMA, 4, 4X, P, and 1). Wide standard operating temperature range: 40 to 0 C (standard type). s with gold-plated contacts added to the series to enable handling microloads. Certified standards: UL, CSA, EN (TÜV), and CCC. Be sure to read the Safety Precautions on page 14 and the Precautions for All Safety Limit Switches. Number Structure Number Legend D4B-@@@@N Conduit size 1: PG1.5 (1-conduit) 2: G1/2 (PF1/2) (1-conduit) : 1/2-14NPT (1-conduit) 4: M20 (1 conduit) 5: PG1.5 (-conduit) : G1/2 (PF1/2) (-conduit) 7: 1/2-14NPT (-conduit) : M20 (-conduit) 2. Built-in Switch 1: 1NC/1NO (snap-action) : 1NC/1NO (snap-action) gold-plated contacts 5: 1NC/1NO (slow-action) * : 1NC/1NO (slow-action) gold-plated contacts * A: 2NC (slow-action) B: 2NC (slow-action) gold-plated contacts * Excluding D4B-@@1N and D4B-@@7N models.. Actuator 00: Switch box (without ) 11: Roller lever (resin roller) : Roller lever (stainless steel roller) 1R:Roller lever (conventional D4B-compatible) : Adjustable roller lever 17: Adjustable rod lever 70: Top plunger 71: Top roller plunger 1: Coil spring 7: Plastic rod 1

2 Ordering Information Set Numbers Consult with your OMRON representative when ordering any models that are not listed in this table. Safety Limit Switches (with Direct Opening Mechanism) Roller lever (resin roller) Actuator Roller lever (stainless steel roller) Top plunger Top roller plunger Conduit s D4B-@N 1NC/1NO (Snap-action) 1NC/1NO (Slow-action) 2NC (Slow-action) Direct Direct Pg1.5 D4B-1111N D4B-11N D4B-1A11N G1/2 (PF1/2) D4B-2111N D4B-2511N D4B-2A11N 1/2-14NPT D4B-111N D4B-511N D4B-A11N M20 D4B-4111N D4B-4511N D4B-4A11N Pg1.5 (-conduit) D4B-5111N D4B-5511N D4B-5A11N G1/2 (-conduit) D4B-111N D4B-511N D4B-A11N 1/2-14NPT (-conduit) D4B-7111N D4B-7511N D4B-7A11N M20 (-conduit) D4B-111N D4B-511N D4B-A11N Pg1.5 D4B-11N D4B-N D4B-1AN G1/2 (PF1/2) D4B-21N D4B-25N D4B-2AN 1/2-14NPT D4B-1N D4B-5N D4B-AN M20 D4B-41N D4B-45N D4B-4AN Pg1.5 (-conduit) D4B-51N D4B-55N D4B-5AN Pg1.5 D4B-1170N D4B-70N D4B-1A70N G1/2 (PF1/2) D4B-2170N D4B-2570N D4B-2A70N 1/2-14NPT D4B-170N D4B-570N D4B-A70N M20 D4B-4170N D4B-4570N D4B-4A70N Pg1.5 (-conduit) D4B-5170N D4B-5570N D4B-5A70N G1/2 (-conduit) D4B-170N D4B-570N D4B-A70N 1/2-14NPT (-conduit) D4B-7170N D4B-7570N D4B-7A70N M20 (-conduit) D4B-170N D4B-570N D4B-A70N Pg1.5 D4B-1171N D4B-71N D4B-1A71N G1/2 (PF1/2) D4B-2171N D4B-2571N D4B-2A71N 1/2-14NPT D4B-171N D4B-571N D4B-A71N M20 D4B-4171N D4B-4571N D4B-4A71N Pg1.5 (-conduit) D4B-5171N D4B-5571N D4B-5A71N G1/2 (-conduit) D4B-171N D4B-571N D4B-A71N 1/2-14NPT (-conduit) D4B-7171N D4B-7571N D4B-7A71N M20 (-conduit) D4B-171N D4B-571N D4B-A71N Direct 2

3 General-purpose Limit Switches Actuator Adjustable roller lever Adjustable rod lever Coil spring (non-directional) Plastic rod (non-directional) Pg1.5 Conduit s 1NC/1NO (Snap-action) 1NC/1NO (Slow-action) 2NC (Slow-action) D4B-11N Direct Note: 1. In addition to the above models, models compatible with the previous D4B Switches (with standard rotary levers) are available. number examples: D4B-1@1RN(Pg1.5) or D4B-2@1RN(PF1/2) 2. Consult your OMRON representative for products. D4B-N Direct D4B-1AN G1/2 (PF1/2) D4B-21N D4B-25N D4B-2AN 1/2-14NPT D4B-1N D4B-5N D4B-AN Pg1.5 (-conduit) D4B-51N D4B-55N D4B-5AN G1/2 (-conduit) D4B-1N D4B-5N D4B-AN 1/2-14NPT (-conduit) D4B-71N D4B-75N D4B-7AN Pg1.5 D4B-1117N D4B-17N D4B-1A17N G1/2 (PF1/2) D4B-2117N D4B-2517N D4B-2A17N 1/2-14NPT D4B-117N D4B-517N D4B-A17N Pg1.5 (-conduit) D4B-5117N D4B-5517N D4B-5A17N G1/2 (-conduit) D4B-117N D4B-517N D4B-A17N 1/2-14NPT (-conduit) D4B-7117N D4B-7517N D4B-7A17N Pg1.5 D4B-111N D4B-1A1N G1/2 (PF1/2) D4B-211N D4B-2A1N 1/2-14NPT D4B-11N D4B-A1N Pg1.5 (-conduit) D4B-511N D4B-5A1N G1/2 (-conduit) D4B-11N D4B-A1N 1/2-14NPT (-conduit) D4B-711N D4B-7A1N Pg1.5 D4B-117N D4B-1A7N G1/2 (PF1/2) D4B-217N D4B-2A7N 1/2-14NPT D4B-17N D4B-A7N Pg1.5 (-conduit) D4B-517N D4B-5A7N G1/2 (-conduit) D4B-17N D4B-A7N 1/2-14NPT (-conduit) D4B-717N D4B-7A7N Direct

4 Replacement Parts Switch Boxes Operating Heads * The Lever is not included with the Side Rotary Operating Head. Levers Note: Other types of lever are also available. Conduit 1-conduit type -conduit type Built-in switch PG1.5 G1/2 1/2-14NPT PG1.5 G1/2 1/2-14NPT 1NC/1NO (Snap-action) 1NC/1NO (Slow-action) 2NC (Slow-action) Actuator Type Side rotary * Standard D4B-00N Top plunger Flexible-rod Plain Top roller plunger Coil spring Plastic rod D4B-10N D4B-20N D4B-0N D4B-50N D4B-0N D4B-70N D4B-00N D4B-2500N D4B-500N D4B-5500N D4B-500N D4B-7500N D4B-1A00N D4B-2A00N D4B-A00N D4B-5A00N D4B-A00N D4B-7A00N D4B-0070N D4B-0071N D4B-001N D4B-007N Actuator Length (mm) Diameter of roller Standard 17.5 dia. D4B-0001N Stainless steel roller lever 17.5 dia. D4B-0005N Adjustable roller lever 25 to 9 19 dia. D4B-000N Adjustable rod lever 145 max. D4B-0007N Interchangeable with D4B dia. D4B-000RN 4

5 Specifications Standards and EC Directives Conforms to the following EC Directives: Machinery Directive Low Voltage Directive EN EN50041 Certified Standards Snap-action s Certification body Standard File No. EN (certified direct mechanism) J95 TÜV Rheinland GS-ET- EN (uncertified direct J * mechanism) UL UL50 E775 CSA C22.2 No. 14 LR4574 CQC (CCC) GB * Adjustable roller lever, adjustable rod lever, coil spring, and plastic rod models only. Slow-action s Certification body Standard File No. EN (certified direct mechanism) J95 TÜV Rheinland GS-ET- EN (uncertified direct J * mechanism) UL UL50 E775 CSA C22.2 No. 14 LR4574 CQC (CCC) GB * Adjustable roller lever, adjustable rod lever, coil spring, and plastic rod models only. Certified Standard Ratings TÜV (EN ), CCC (GB1404.5) Item Utilization category AC- Rated operating current (Ie) 2 A Rated operating voltage (Ue) 400 V Note: As protection against short-circuiting, use either a gi-type or gg-type A fuse that conforms to IEC029. UL/CSA: (UL50, CSA C22.2 No. 14) A00 Rated voltage 120 VAC 240 VAC 40 VAC 00 VAC A Carry current Current (A) Volt-amperes (VA) Make Break Make Break ,

6 Ratings Rated voltage (V) 125 VAC VDC Note: 1. The above values are continuous currents. 2. Inductive loads have a power factor of 0.4 or higher (AC) or a time constant of 7 ms or lower (DC).. Lamp loads have a inrush current of times the normal current. 4. Motor loads have a inrush current of times the normal current. Inrush current Characteristics Degree of protection *1 Durability *2 Operating speed Operating frequency Contact resistance 0 A max. Minimum applicable load *4 Rated insulation voltage (Ui) Rated frequency Non-inductive load (A) Inductive load (A) Resistive load Lamp load Inductive load Motor load NC NO NC NO NC NO NC NO Mechanical Electrical Mechanical Electrical Protection against electric shock Pollution degree (operating environment) Between terminals of same polarity Impulse withstand voltage (EN ) Insulation resistance Contact gap Between terminals of different polarity Between each terminal and ground IP7 (EN ) Note: 1. The above values are initial values. 2. The above values may vary depending on the model. Consult your OMRON sales representative for details. *1. The degree of protection is tested using the method specified by the standard (EN ). Confirm that sealing properties are sufficient for the operating conditions and environment beforehand. *2. The durability is for an ambient temperature of 5 to 5 C and ambient humidity of 40% to 70%. For further conditions, consult your OMRON sales representative. *. 20 to 0 C for the flexible-rod type. *4. The above values may vary depending on switching frequency, environmental condition, and relativity level, consult your OMRON sales representative ,000,000 operations min. (snap-action),000,000 operations min. (slow-action) 500,000 operations min. ( A resistive load at 250 VAC) 1 mm/s to 0.5 m/s 120 operations/minute 0 operations/minute 25 mω max. General load 10 ma resistive load at 5 VAC Gold-clad contact 20 ma resistive load at 5 VAC (N-level reference value) 00 V (EN ) 50/0 Hz Class I (with ground terminal) (EN ) 2.5 kv (snap-action)/4 kv (slow-action) 4 kv (slow-action) 4 kv 0 MΩ min. (at 500 VDC) between terminals of the same polarity and between each terminal and non-current-carrying part 2 2 mm min. (slow-action) mm min. (snap-action) Vibration resistance Malfunction to 55 Hz, 0.75 mm single amplitude Shock resistance Conditional short-circuit current Destruction Malfunction Conventional enclosed thermal current (Ithe) 1,000 m/s 2 min. 00 m/s 2 min. 0 A (EN ) 20 A (EN ) Ambient operating temperature 40 to 0 C (with no icing) * Ambient operating humidity Weight 95% max. Approx. 250 g

7 Engineering Data Electrical Durability (Snap-action) (Ambient temperature: 5 to 0 C, ambient humidity: 40 to 70%) Operations (x 4 ) (cosφ = 1) (cosφ = 0.4) 1,000 1,000 Operating frequencies: VAC 0 times/min., cosφ = Operations (x 4 ) VAC 40 VAC 0 0 Operating frequencies: 0 times/min., cosφ = VAC VAC Switching current (A) Switching current (A) Structure and Nomenclature Structure The roller lever switch employs a system which allows selection of operation on only one side (left or right) or both sides without the use of any tools. Head Can be connected in any of four directions (except for Roller Plunger s, which can be connected at either of 2 directions that differ by 90 ) Roller Nylon rollers used for superior resistance to wear. Seal Ring Sealing properties improved by using a X ring and bearing-free structure. Lever (Form Lock Structure) The lever has an operating position indication plate and grooves that mate every 90 to prevent slipping between the rotary axis and lever. The operating position indicator plate Built-in Switch Direct mechanism used for NC contact to separate contact for faults, such as contact welding. The heights of the NC and NO terminals are different to enable easier wiring. Conduit Opening s are available with a wide range of conduits. Size Box 1-conduit model 2-conduit model Pg1.5 G1/2 1/2-14NPT Yes Yes Yes Yes Yes Yes Note: NBR is used for rubber parts. Ground Screw Ground screws are provided on all models for increased safety. 7

8 Direct Opening Mechanism 1NO/1NC Contact (Snap-action) Conforms to EN Direct Opening A B (Only NC contact has a direct mechanism.) 1. When contact welding occurs. 2. When contacts are being pulled apart. Movable contact blade Movable contact Plunger Safety cam directly pushes up the movable contact blade.. When contacts are completely pulled apart. Fixed contact (NC) Safety cam 1NC/1NO Contact (Slow-action) Conforms to EN Direct Opening (Only NC contact has a direct mechanism.) When contact welding occurs, the contacts are separated from each other by the plunger being pushed in. 2NC Contact (Slow-action) Conforms to EN Direct Opening (Both NC contacts have a direct mechanism.) When contact welding occurs, the contacts are separated from each other by the plunger being pushed in. Fixed contact (NC) Fixed contact (NC) Contact spring Return spring Movable contact Plunger Contact spring Return spring Movable contact Plunger Fixed contact (NO) Contact Form Contact Contact form Diagrams Explanation D4B-@1@N D4B-@5@N D4B-@A@N 1NC/1NO (Snap-action) 1NC/1NO (Slow-action) 2NC (Slow-action) Za Zb Zb Stroke Note: Terminal numbers are according to EN5001; contact symbols are according to IEC Stroke Stroke ON ON ON Only NC contact has a certified direct mechanism. Terminal numbers and 1-14 cannot be used as unlike poles. Only NC contact has a certified direct mechanism. Terminal numbers or 2-24 can be used as unlike poles. Both NC contacts and have a certified direct mechanism. Terminal numbers and can be used as unlike poles.

9 Dimensions and Operating Characteristics (Unit: mm) Note: Omitted dimensions are the same as those for the Type s D4B-1@@@N and D4B-5@@@N have a PG1.5 conduit. D4B-2@@@N and D4B-@@@N have a G1/2 conduit. D4B-@@@N and D4B-7@@@N have a 1/2-14NPT conduit. Switches 1-conduit s D4B-@@11N 17.5 dia.. resin roller PT 21 ± M5 12 Allen- bolt R 2± Four, M (Stainless Steel Roller) D4B-@@N stainless steel roller PT M5 12 Allen- bolt R 2± Four, M ±1.2 0±0.2 Set position indicator plate * Two, -dia. Two, M4 12 cover mounting screws ±1.2 0±0.2 Set position indicator plate * Two, dia. Two, M4 12 cover mounting screws Conduit 7. 4 Conduit Adjustable *2 D4B-@@N 25 to 9R 1 19 dia. 7 resin roller Set position indicator plate *1 71± Four, M Adjustable Rod Lever *2 D4B-@@17N 145 max. 5.4 dia. 0 stainless steel rod Setting position indicator *1 ± Four, M M5 Allen- bolts M5 12 Allen- bolts ±0.2 Two, -dia. Two, M4 12 cover ±0.2 Two, -dia. Two, M4 12 cover Conduit 7. 4 Conduit Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. *1. The lever can be set to any desired position by turning the operating position indicator. *2. In terms of construction, the Switch is a General-purpose Limit Switch rather than a Safety Limit Switch. Operating characteristics Operating force Release force Pretravel Overtravel Movement differential Direct travel Direct force Total travel OF max. RF min. PT PT (2nd) * *5 OT min. MD max. *4 DOT min. * * *4 * DOF min. * TT *5 Note: Variation occurs in the simultaneity of contact /closing operations of 2NC contacts. Check contact operation. *1. The operating characteristics of these Switches were measured with the roller level set at mm. *2. The operating characteristics of these Switches were measured with the rod level set at 140 mm. *. Only for slow-action models. *4. Only for snap-action models. *5. Reference values. *. Must be provided to ensure safe operation. D4B-@@11N D4B-@@N D4B-@@N *1 9.41N 1.47N N 9.41N 1.47N N 9.41N 1.47N N D4B-@@17N *2 2.12N 0.29N N 9

10 Top Plunger PT OP 9.2 dia. Stainless steel plunger Four, M Top Roller Plunger 12.7 dia. 4. stainless steel roller PT OP 9.2 dia. Four, M ±0.2 Two, -dia. Two, M4 12 cover Conduit 0±0.2 Two, -dia. Two, M4 12 cover Conduit Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. Operating characteristics D4B-@@70N D4B-@@71N Operating force Release force Pretravel Overtravel Movement differential Direct travel Direct force Total travel Free position Operating position OF max. RF min. PT max. PT (2nd) *1 * OT min. MD max. *2 DOT min. *4 DOF min. *4 TT * FP max. OP 1. N 1.9 N 2 mm ( mm) 5 mm 1 mm.2 mm 49.0 N (7 mm) mm 5±1 mm 1. N 1.9 N 2 mm ( mm) 5 mm 1 mm.2 mm 49.0N (7 mm) 51 mm 4±1 mm Note: Variation occurs in the simultaneity of contact /closing operations of 2NC contacts. Check contact operation. *1. Only for slow-action models. *2. Only for snap-action models. *. Reference values. *4. Must be provided to ensure safe operation. Coil Spring (Non-directional) *2 D4B-@@1N Plastic Rod (Non-directional) *2 D4B-@@7N Stainless steel coil spring The Switch can be actuated in any direction except to the axis center. (40) *1 Plastic rod The Switch can be actuated in any direction except to the axis center. (40) *1 1.2 dia. 20.5± ±0.2 Seal cap Four, M.5 7 Two, -dia. Two, M4 12 cover 7.. dia Conduit dia. 20.5± ±0.2 Seal cap Four, M.5 7 mounting screws Two, -dia. Two, M4 12 cover 7.. dia Conduit Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. *1. Be sure to adjust the dog to within 40 mm from the top end of the coil spring. *2. In terms of construction, the Switch is a General-purpose Limit Switch rather than a Safety Limit Switch. Operating characteristics D4B-@@1N D4B-@@7N Note: Variation occurs in the simultaneity of contact /closing operations of Operating force OF max N 1.47 N 2NC contacts. Check contact Pretravel PT max. operation.

11 -conduit Switches dia. x. resin roller M5 x 12 Allen- bolt R Operating position indicator *1 40 to 42 Six, -dia. Four, M.5 x cover Four, M.5 x ± dia. 7 stainless steel roller PT M5 12 Allen- bolt R Operating position indicator *1 40 to Six, dia. Four, M.5 cover 2±1 5±1 2.±1 1 Four, M ± conduit Two, holes (depth: ) 27± conduit Two, holes (depth: ) Adjustable *2 D4B-@@N Adjustable Rod Lever *2 D4B-@@17N 25 to 9R 19 dia. x 7 resin roller Operating position indicator *1 Four, M.5 x max. dia. x 0 stainless steel rod Operating position indicator *1 Four, M.5 x to 42 M5 x Allen- bolts Six, -dia. Mounting holes Four, M.5 x M5 x to 42 Allen- bolts Six, -dia. Four, M.5 x cover -conduit Two, holes (depth: ) -conduit Two, holes (depth: ) Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. *1. The lever can be set to any desired position by turning the operating position indicator. *2. In terms of construction, the Switch is a General-purpose Limit Switch rather than a Safety Limit Switch. Operating characteristics Operating force Release force Pretravel Overtravel Movement differential Direct travel Direct force Total travel OF max. RF min. PT PT (2nd) * *5 OT min. MD max. *4 DOT min. * * *4 * DOF min. * TT *5 D4B-@@11N D4B-@@N D4B-@@N * N 1.47 N N 9.41 N 1.47 N N 9.41 N 1.47 N N D4B-@@17N * N 0.29 N N Note: Variation occurs in the simultaneity of contact /closing operations of 2NC contacts. Check contact operation. *1. The operating characteristics of these Switches were measured with the roller level set at mm. *2. The operating characteristics of these Switches were measured with the rod level set at 140 mm. *. Only for slow-action models. *4. Only for snap-action models. *5. Reference values. *. Must be provided to ensure safe operation. 11

12 Top Plunger 40 to dia. Stainless steel plunger Four, M.5 x 19.5 Top Roller Plunger D4B-@@71N 12.7 dia. x 4. stainless steel roller 40 to dia. Four, M.5 x 19.5 Six, -dia. Four, M.5 x cover Six, -dia. Four, M.5 x cover conduit Two, holes (depth: ) -conduit Two, holes (depth: ) Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. Operating characteristics D4B-@@70N D4B-@@71N Operating force Release force Pretravel Overtravel Movement differential Direct travel Direct force Total travel Free position Operating position OF max. RF min. PT max. PT (2nd) *1 * OT min. MD max. *2 DOT min. *4 DOF min. *4 TT * FP max. OP 1. N 1.9 N 2 mm ( mm) 5 mm 1 mm.2 mm 49.0 N (7 mm) mm 5±1 mm 1. N 1.9 N 2 mm ( mm) 5 mm 1 mm.2 mm 49.0N (7 mm) 51 mm 4±1 mm Note: Variation occurs in the simultaneity of contact /closing operations of 2NC contacts. Check contact operation. *1. Only for slow-action models. *2. Only for snap-action models. *. Reference values. *4. Must be provided to ensure safe operation. Coil Spring *2 D4B-@@1N 1.2 dia. 40 to 42 Stainless steel coil spring The Switch can be actuated to all directions except to the axis center Seal cap Four, M.5 x 7 Six, -dia. Four, M.5 x cover (40) *1. dia. Plastic Rod *2 D4B-@@7N 201.9± dia. 40 to 42 Plastic rod The Switch can be actuated to all directions except to the axis center. Seal cap Four, M.5 x 7 Six, -dia. Four, M.5 x cover (40) *1. dia. -conduit Two, holes (depth: ) -conduit Two, holes (depth: ) Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. *1. Be sure to adjust the dog to within 40 mm from the top end of the coil spring. *2. In terms of construction, the Switch is a General-purpose Limit Switch rather than a Safety Limit Switch. Operating characteristics D4B-@@1N D4B-@@7N Operating force Pretravel OF max. PT max N 1.47 N Note: Variation occurs in the simultaneity of contact /closing operations of 2NC contacts. Check contact operation. 12

13 Levers (Applicable for s only) D4B-0001N 17.5 dia. x. nylon roller 7. dia. socket screw (Stainless Steel Roller) D4B-0005N 17.5 dia. 7 stainless steel roller R socket screw (length: 12) Adjustable D4B-000N 19 dia. x 7 nylon roller 97 Adjustable range (25 to 9) adjusting scale socket screw Adjustable Rod Lever D4B-0007N dia max. Stainless rod socket screw (Compatible with Previous D4B ) D4B-000RN 19 dia. x 7 nylon roller WL-1A dia. 0 nylon roller 40.2±0. 2. WL-1A 50 dia. nylon roller 20.1± dia dia WL-1A dia. 7 stainless steel roller socket screw socket screw (length: 12) Note: Reverse the indicator plate when mounting. WL-1A R socket screw 7. dia. Note: Reverse the indicator plate when mounting dia. bearing roller dia. 0 ± dia. 54. socket screw (length: 12) 11.4 socket screw 11.5 Note: Reverse the indicator plate when mounting. Note: Reverse the indicator plate when mounting. Adjustable Rod Lever WL-A max dia. 12. M5 hexagon socket screw ±2 400±2 Adjustable range (50 to 0).0±0.4.2 dia. stainless steel operation rod socket screw Note: Reverse the indicator plate when mounting. Spring Rod Lever WL-4A201 Adjustable range (290 max.) 9 2 dia. stainless steel spring 1 dia. Note: Reverse the indicator plate when mounting. Resin Loop Lever D4A-F00 (2.) 7. dia max ± socket screws socket screw Note: Reverse the indicator plate when mounting. 4 dia. Nylon 0± Note: 1. Unless otherwise specified, a tolerance of 0.4 mm applies to all dimensions. 2. Safety Limit Switch specifications are satisfied with D4B-@@@@N Levers only (example: D4B-0001N). The D4B-000N Adjustable and D4B-0007N Adjustable Rod Lever, however, cannot be used. Do not order them for a Side Rotary Operating Head. 1

14 Application Precaution Changing the Operating Direction Switches with s The operating direction of the lever can be easily changed without using any tools. It can be set to clockwise operation (CW) or counterclockwise (CCW) operation. Use the procedure given at the right to change the operating direction. Operating position mark (arrow) Operating section (on back of Head) Head Operating procedure D4B-@N 1. Remove the four Head set screws and remove the Head from the Switch Box. 2. Turn the bottom of the Head toward you, press in the Head shown in the diagram at the left, and turn the clockwise or counterclockwise. Note: The factory setting is for CW.CCW.. The CW setting is for clockwise operation and the CCW setting is for counterclockwise operation. Set the to the desired position. Safety Precautions Refer to the Precautions for All Switches and Precautions for All Safety Limit Switches. Precautions for Safe Use Do not use the Switch submerged in oil or water, or in locations continuously subject to splashes of oil or water. Doing so may result in oil or water entering the Switch interior. (The IP7 degree of protection specification for the Switch refers to water penetration while the Switch is submersed in water for a specified period of time.) Always attach the cover after completing wiring and before using the Switch. Also, do not turn ON the Switch with the cover open. Doing so may result in electric shock. Precautions for Correct Use Appropriate Tightening Torque Mounting Use four M5 screws with washers to mount the standard model. Be sure to apply the proper torque to tighten each screw. The -conduit models can be mounted more securely by using the four screws plus 0.05 two 5 mm diameter studs, each of which has a maximum height 0. of 4. mm as shown below. Mounting Dimensions (M5) Standard -conduit Be sure to tighten each screw of the D4B-@N (4) properly, otherwise the D4B-@N may malfunction. (1) Type Appropriate tightening torque 1 M.5 terminal screw 0.59 to 0.7 N m 2 mounting screw * 1.1 to 1.7 N m Head mounting screw 0.7 to 0. N m 4 M5 body mounting screw 4.90 to 5. N m 5 Connector 1.77 to 2. N m Lever Mounting Screws (Roller Levers) 4.90 to 5. N m Cap screw (for three-conduit models) 1.27 to 1.7 N m * Apply a tightening torque of 0.7 to 0. N m to three-conduit models. () (5) (2) () ± Studs 27± dia. height: 5 max. 0. Changes in Actuator Mounting Position To change the angle of the lever, loosen the Allen- bolts on the side of the lever. The operating position indicator plate * has protruding parts which engage with the lever, thus allowing changes to the lever position by 90. The back of the operating position indicator plate * has no protruding parts. If this plate is turned over and attached, any angle within a 0 range can be set. Do not turn over the plate, however, when using the D4B-@N as a switch with a certified direct mechanism. For an SUVA- or BIA-certified application, make sure that the lever engages with the operating position indicator plate securely so that the lever will not slip. * The operating position indicator plate: Refer to page 7. Changes in Head Mounting Position By removing the screws on the four corners of the, the can be reset in any of four directions. Make sure that no foreign materials will penetrate through the. 14

15 Wiring Do not connect the bare lead wires directly to the terminals but be sure to connect each of them by using an insulation tube and M.5 round crimp terminals and tighten each terminal screw within the specified torque range. The proper lead wire is 20 to 14 AWG (0.5 to 2.5 mm 2 ) in size. dz dia.:.7 mm D dia.: 4.5 mm B: 7.0 mm L: 20.2 mm F: 7.7 mm l: 9.0 mm D dia. dz dia. Make sure that all crimp terminals come into contact with the casing or cover as shown below, otherwise the cover may not be mounted properly or the D4B-@N may malfunction. Correct Terminal screw Incorrect Conduit Opening Make sure that each connector is tightened within the specified torque range. The casing may be damaged if the connector is tightened excessively. If the 1/2-14NPT is used, cover the cable and conduit end with sealing tape in order to ensure IP7. The Pg1.5 connector must be Nippon Flex s ABS-0 Pg1.5 or ABS-12 Pg1.5. Use an OMRON SC-series Connector (sold separately) that is suited to the cable in diameter. Properly attach the provided conduit cap to the unused conduit and securely tighten the cap screw within the specified torque when wiring the D4B-@N. Others The load for the actuator (roller) of the Switch must be imposed on the actuator in the horizontal direction, otherwise the actuator or the rotating axis may be deformed or damaged. Correct Incorrect Crimp terminal Crimp terminal Casing Correct Terminal screw Correct Casing Crimp terminal Incorrect Terminal screw Crimp terminal Dog When using a long lever model like the D4B-@@N or D4B-@@17N, the Switch may telegraph. To avoid telegraphing, take the following precautions. 1. Set the lever to operate in one direction. 2. Modify the rear end of the dog to an angle of to 0 as shown below or to a secondary-degree curve. θ Dog θ 0 θ 0. Modify the circuit so as not to detect the wrong operating signals. θ Incorrect Crimp terminal Ordering Method The D4B-@N uses a block mounting method. Switches can be ordered either as sets or as individual parts. If a set is ordered, the Switch will be shipped with all parts assembled. Note: For Switches with s, do not order just the Head and Lever, or just the Switch Box and Lever. Individual model numbers Set model number Switch Box + Head + Lever * Example: D4B-2111N D4B-20N + D4B-00N + D4B-0001N *s only.

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