Fault condition (Orange) Continuous fault condition (Stripe pattern)

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STRUCTURE System: Indicator: Indication & Reset operation: Indication pattern: Drop Type Fault Indicator Double pattern flag indicator (Orange & Stripe pattern) The fault signal generated by the

1 STRUCTURE System: Indicator: Indication & Reset operation: Indication pattern: Drop Type Fault Indicator Double pattern flag indicator (Orange & Stripe pattern) The fault signal generated by the outer protective relay contacts excites the operating coil and drop the indication flag in the annunciator. The display window of the flag changes from the normal condition of black to the fault condition of orange. Pushing up the reset lever returns the indicator flag to the original position, and window returns to normal condition black, if the fault signal was monentary and operating coil is not excited any more. However if the fault signal is continuous and still excites the operating coil, indicator flag in the display window change to stripe pattern in orange and black by operating the reset lever. After the fault signal is disappear the flag automatically return to the normai condition black. Normal condition (Black) Fault condition (Orange) Continuous fault condition (Stripe pattern) SPECIFICATIONS (RATINGS, PERFORMANCE) Specification Rated insulation voltage (Ui) Coil rating Voltage Current Continuous input range Operating value Returning value Minimum input pulse width (rated voltage or current) External Terminal Max. wire size Insulation resistance Power frequency Withtand voltage Lightning impulse withstand voltage Overload capability Contact currentcarrying capacity Contact breaking capacity Vibration resistance Shock resistance Durability Protection degree Ambient operating temperature Storing temperature Relative humidity Altitude Weight Type Voltage operation type Current operation type 24V, 48V, 100 / 110V, 125V, 200 / 220V AC / DC, 240V AC 24V, 48V AC / DC: 80 to 1% Others: 70 to 1% Rating X 70% max. Rating X 10% or more msec max. 250V 0.5A, 0.7A, 1.0A, 2.0A DC 90 to 100% (in case of continuous input) Rating X 90% max. Rating X 10% or more msec max. (200% input of rated current, 10 msec max.) Faston #250 or screw terminal (M3.5) 2mm 2 max. (AWG14) 10M or more (Between electric circuit block and ground) / 5M or more (electric circuit between each other / Between contact terminals [Between poles]) 2,000V AC (Between electric circuit block and ground / electric circuit between each other) / 1,000V AC (Between contact terminals [Between poles]) / 1 min. ±4.5kV (Between electric circuit block and ground / electric circuit between each other) / ±3kV (Between contact terminals [Between potes]) / 3 times for each poles (1.2 / 50μs) Rating X 1.3 times / 3 hours / 1 time Rating X 6.0 times / sec. / 1 time 2A 110V DC, 0.2A (L/R = 7msec) Frequency: 16.7Hz, Width of frequency: 4mm, 10 min for each axis 294m/s 2, 3 times each axial direction 10,000 times or more (electrical, mechanical) Panel surface: IP40 0 to 40 C (10 to 55 C: a few hours are allowed per day) 20 to 60 C to 80% (average per day, no dew condensation) 2,000 m max. 0g E54

FEATURES The panel back size is shorter than TK type by about 25%. 133mm 100mm The approximately 40% expansion of the name character area enhances visibility of a nameplate.

specifications and maintenance from the front of the panel. Faston / Tab type and Screw type are available as standard line up. Screw type is equiped with a terminal cover.

(operating at 200% or more of rated current, at input pulse of 10 msec). It sensitively responds to an pulse input signal to the annunciator relay.

Wide contact variations enable to omit some auxiliary relays now in use.

2 FEATURES The panel back size is shorter than TK type by about 25%. 133mm 100mm The approximately 40% expansion of the name character area enhances visibility of a nameplate. 24mm 28mm 15mm 21mm TK Type ZK Type (Faston tab type) 110mm TK Type ZK Type ZK Type (screw type) A plugin method for internal elements is adopted, which enables easy changing of specifications and maintenance from the front of the panel. Faston / Tab type and Screw type are available as standard line up. Screw type is equiped with a terminal cover. Vertical and horizontal jumper for link reduce wires. Short time input operation is available for current type. (operating at 200% or more of rated current, at input pulse of 10 msec). It sensitively responds to an pulse input signal to the annunciator relay. For further details, refer to technical information (page E62). 4 cotacts can be choosed from 2 contacts linked with the display flag and 3 contacts linked with the coil voltage. Wide contact variations enable to omit some auxiliary relays now in use. When removing the internal element, hang an element unplugging tool on the lower hook to unplug by lifting and removing the lock. Measures for whisker trouble are fully prepared by eliminating the use of tin and zinc plating. Collective mounting is available, which saves hole cutting work one by one. It contributes to reduce manhour. (A vertical oneline assembly is not available). E55

3 HOW TO ORDER How to order as single unit ZK 120A DC110V XX OBF Basic type Contact arrangements (For further details, see Page E60.) interlock Coil interlock Code 000A 010A 020A 0A 020D 100A 110A 120A 120D 120E 200A 220A 210A 3a 1b 1b 2b Any contact arrangements other than those above are available. DC024V DC048V DC110V DC125V DC220V AC024V AC048V AC110V AC125V AC220V AC240V DC0.5A DC0.7A DC1.0A DC2.0A 24V DC 48V DC 100 / 110V DC 125V DC 200 / 220V DC 24V AC 48V AC 100 / 110V AC 125V AC 200 / 220V AC 240V AC 0.5A DC 0.7A DC 1.0A DC 2.0A DC Special specification Code Description Standard specification Varistor mounted type (Voltage type only) XZ type is special. ZK U 120A DC110VXX O Code 000A 010A 020A 0A 020D 100A 110A 120A 120D 120E 200A 220A 210A Rated voltage / current Voltage operation type Code Coil rating Resistance value Note: Voltage type AC rated product has a builtin 800V rated rectifier. Current operation type Code Coil rating Resistance value How to order internal elements Basic type Internal element Contact arrangements (For further details, see Page E60.) interlock Coil interlock 3a 1b 1b 2b Any contact arrangements other than those above are available. Rated voltage / current Voltage operation type Code Coil rating Resistance value DC024V DC048V DC110V DC125V DC220V AC024V AC048V AC110V AC125V AC220V AC240V DC0.5A DC0.7A DC1.0A DC2.0A 24V DC 48V DC 100 / 110V DC 125V DC 200 / 220V DC 24V AC 48V AC 100 / 110V AC 125V AC 200 / 220V AC 240V AC 0.5A DC 0.7A DC 1.0A DC 2.0A DC Note: Voltage type AC rated product has a builtin 800V rated rectifier. Current operation type Code Coil rating Resistance value E Surface frame B: Black color O: Yellowred (orange) When coil excitation continues after reset operation, the flag color turns pattern black and orange. XZ type is special. Rear surface terminal Code color O: Yellowred (orange) When coil excitation continues after reset operation, the flag color turns pattern black and orange. Special specification Code Description Standard specification Varistor mounted type Internal element Description Screw terminal (M3.5) Faston tab #250

How to order as assembled products Collective mounting is available for ZK type. It is not neccessary to make holes for each units, and the assembled units can be installed in only one hole.

4 How to order as assembled products Collective mounting is available for ZK type. It is not neccessary to make holes for each units, and the assembled units can be installed in only one hole. In case of assembling the same specification ZK 02 x A DC110VXX OBF Basic type Vertical number Horizontal Contact number arrangement Rated voltage, Current In case of assembling different specifications Please enter the order sheet for ZK Drop Type Annunciator Relay attached to the page E63. ZK 02 x 03 MIX MIX OBF Basic type Vertical number 1 to 3 stages Horizontal Contact Rated voltage, number arrangement Current 2 to 8 stages Order Sheet for ZK Type Fault Indicator Please refer to the above type coding for orders. Please write MIX in Contact arrangement in case of assembling different specifications of contact arrangement. Please write MIX in Rated voltage, current in case of assembling different specifications of rated voltage, current About the layout drawing Enclose the shape of the assembled window in the layout drawing with a continuous line. About the layout configuration Fill the contact arrangement, rated voltage and current, and rear terminal in the layout configuration. Precaution for assemblies When ordering a collective type of rear terminal symbols S (screw specification), please order after taking the wire size and number of wires into account (there is a possibility that wiring may be difficult depending on the wire size and number of wires). Sizes of collective mounting Refer to the right table as to sizes of collective mounting when mounting collectively. A virtical oneline assembly is not available. Table of sizes Vartical stage number First stage Second stage Third stage 2 row L1 72 L2 L3 L1 72 L2 L3 L1 72 L2 L3 Horizontal stage number 3 row 4 row 5 row 6 row 7 row (mm) 8 row Single row is not available. E57

5 STANDARD PRODUCTS Faston type Outline Mounting panel (t=1 to 6mm) holder Display window Tab terminal #250 series Faston type [collective] Mounting hole size When mounting a single unit Outline Mounting hole size E58 Type NP Accessories Internal element Element unplugging tool Mounting panel (t=1 to 6mm) Rating. Contact arrangement NP (In case different ratingscontact arrangements are mixed, sealed under lower surfare) Contact arrangement Coil rating Accessories Internal element Element unplugging tool Reset lever standard equiment standard equiment

STANDARD PRODUCTS Screw type Outline Mounting

Screw with a square washer Mounting hole size

Type NP Accessories Internal element Element

Jumper Jumper Reset lever standard attachment

6mm) Terminal cover Mounting hole size Rating.

ratingscontact arrangements are mixed, sealed

rating Accessories Internal element Element

attachment necessary pcs attached Vertical

6 STANDARD PRODUCTS Screw type Outline Mounting panel (t=1 to 6mm) holder Display window Screw with a square washer Mounting hole size When mounting a single unit Terminal cover Type NP Accessories Internal element Element unplugging tool Terminal cover Crimp terminal Jumper Jumper Reset lever standard attachment standard attachment 10 pcs attached Vertical linking Horizontal linking Screw type [collective] Outline Mounting panel (t=1 to 6mm) Terminal cover Mounting hole size Rating. Contact arrangement NP (In case different ratingscontact arrangements are mixed, sealed under lower surfare) Contact arrangement Coil rating Accessories Internal element Element unplugging tool Terminal cover Crimp terminal Jumper Jumper standard attachment standard attachment necessary pcs attached Vertical linking Horizontal linking E59

7 CONTACT ARRANGEMENTS AND SEQUENCES About contact arrangement Contact arrangement symbol 9 10 Contact arrangement circuit ZK120A 7 8 ZK000A ZK010A , ZK020A ZK0A ,,, b2 10 ZK020D ZK100A , Black Yellowred Terminal No. 1 : interlocking contact 2 : Coil interlocking contact : Coil (Terminals # 9 and #10 fixed in all models) Operation chart Momentary fault Continuous fault Yellowred / black stripe line Coil motion Contact motion (reset lever operation in manual) Target indication ZK110A , ZK120A ZK120D b2 b2 10 ZK120E b2 10 ZK200A ZK220A ,, 10 ZK210A ,, Any contact arrangements other than those above are available. Please feel free to inquire. E60

ACCESSORIES Element unplugging tool TKNQ

Standard equipment Jumper For rear terminal

ZKSB50 (Order unit: 100) Vertical linking

linking (50mm pitch) For vertical adjacent

pitch instration (36mm) or assembled type For

Terminal cover (Order unit: 100) For rear

(Acryl material t = 1mm) ZKDP (Order unit:

cardboards are also available instead of ZKDP.

8 ACCESSORIES Element unplugging tool TKNQ (Order unit: 10) (Order unit: 10) ZKTK Standard equipment Jumper For rear terminal symbol S (screw specification) ZKSBV ZKSB36 ZKSB50 (Order unit: 100) Vertical linking Horizontal linking (36mm pitch) Horizontal linking (50mm pitch) For vertical adjacent terminals For upper stage terminals of min. pitch instration (36mm) or assembled type For upper stage terminals of 50mm pitch instration Terminal cover (Order unit: 100) For rear terminal symbol S (screw specification) ZKCV (Acryl material t = 1mm) ZKDP (Order unit: 100) 67mm Standard equipment 21mm Commercial cardboards are also available instead of ZKDP..5mm 27.5mm Cramp terminal (Order unit: 100) ZKST Standard accessory for screw type (10 pcs). E61

9 TECHNICAL INFORMATION Operating condition of current type For the current operation type, it is sometimes used by connecting in series with a relay equipped with a selfcutoff contact in the manner shown in Figure 1; in that case, current I shows the waveform shown in Figure 2 depending on the coil inductance of those serial relays. Voltage V waveform Current Relay Coil rating of Fault Indicator Voltage V Relay resistance value Current waveform 200% or more current of rating 10 msec or more Figure 2. Voltage and current waveform Calculated circuit current value Calculated circuit current value Rectangle 1 When highspeed operation is required (operation at 200% or more of rated current and minimum input pulse of 10 msec or less), please select a coil rating that can secure a rectangle 1 within the actual circuit current waveform Highspeed operation is confirmed in the condition with the resistance value of the serial relay (Fig. 1 Ry) in the following table. E62

10 Order Sheet for ZK Type Fault Indicator Company name Type coding Quantity Units Delivery time (month) (day), (year) Date of order: (month) (day), (year) Person in charge TEL FAX Number of Order Please enclose the following layout drawing with a continuous line as the shape of an assembled window. Please fill the contact arrangement, rated voltage, current, special use and also rear terminal in the following layout configuration. The sizes of the mounting hole are the horizontal outside dimension: 4 mm and the vertical outside dimension: 5 mm. Layout drawing Layout configuration Row A Row B Row C Contact arrangement Rated voltage, current Special specification Contact arrangement Contact arrangement Rated voltage, current Rated voltage, current Special specification Special specification Rear surface terminal Rear surface terminal Rear surface terminal E63

HEAVY DUTY POWER RELAYS FEATURES

HEAVY DUTY POWER RELAYS FEATURES VDE VC HEAVY DUTY POWER RELAYS VC RELAYS Faston terminal Screw terminal mm 9 FEATURES VC power relays are designed for controlling heavy duty loads safely: Contact gap of 3 mm or more -point contacts for