Fuji Electric TK13 Instruction Manual
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Fuji Electric TK13 Instruction Manual

Fuji Electric TK13 Instruction Manual

Thermal overload relays
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Please give careful consideration in handling this
instruction manual and make sure that it is
delivered without fail over to the hands of the
person who takes the final responsibility for
operation and maintenance.
Thermal Overload Relays
Type TK13
TK25
TK26
TK26E
*1: L (Long-time operating type),
Q (Quick operating type)
*2: H (Separate mounting type)
*3: A (Auto-reset type)
Note!
*1, *2, *3
*3
*1, *2, *3
*3

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Summary of Contents for Fuji Electric TK13

  • Page 1 Thermal Overload Relays Type TK13 *1, *2, *3 TK25 TK26 *1, *2, *3 TK26E *1: L (Long-time operating type), Q (Quick operating type) *2: H (Separate mounting type) *3: A (Auto-reset type) Note! Please give careful consideration in handling this...

  • Page 2: Introduction

    1. Introduction Thank you for purchasing the thermal overload relays manufactured by Fuji Electric. Please confirm that the delivered product matches your requirements including ratings and specifications. In case the product is damaged or accessories are not included in the package, or if there is a defect in the product, please contact our nearest sales office.

  • Page 3: Table Of Contents

    Contents Introduction ................................. - 2 - Safety Precautions.............................. - 2 - Structure, Part Name, and Manufacturing Lot Number ..................- 4 - 3.1 Structure and Part Name ..........................- 4 - 3.2 Type and Specifications Indication Example ..................... - 4 - 3.3 Interpretation of Manufacturing Lot Number .....................

  • Page 4: Structure, Part Name, And Manufacturing Lot Number

    3. Structure, Part Name, and Manufacturing Lot Number 3.1 Structure and Part Name Thermal overload relay Adjustment dial Mounting leg Reset bar Operating indicator window NC contact Main nameplate Operating part (laser printing) NO contact Main circuit 3.2 Type and Specifications Indication Example 3.3 Interpretation of Manufacturing Lot Number (2) Main nameplate (type and rating) Type...

  • Page 5: Unpacking

    (4) For using thermal overload relays in combination with magnetic contactors, refer to the following table. Magnetic contactor to be combined Thermal E Series overload relay New SC Series SK Series For direct For using crimp wiring terminals SC-03 TK13 SC-0 – – – TK13-TN SC-05 SK18 TK25 – – –...

  • Page 6: Wiring

    (2) For connectable wire size and tightening torque, refer to Table 7.1. Table 7.1 Connectable Wire Size and Tightening Torque Main terminal Control and auxiliary terminals Type TK13 TK25, TK26 TK26E Common Direct Solid wire 1 pc. x (φ1.2 to 2) 1 pc.

  • Page 7: Usage Instructions

    8. Usage Instructions (1) Mounting to and removing from the magnetic contactor • Mount the thermal overload relay according to the following procedure. (Figure 8.1) (a) Loosen the terminal screws for Nos. 2, 4, and 6 terminals of the magnetic contactor. (b) Align the thermal overload relay leg with the hole in the magnetic contactor and insert it in the direction indicated by an arrow.
  • Page 8 (3) Current setting method (Figure 8.4) • Turn the adjustment dial within its scale and set the full load current of the motor to the downward triangle mark (▼). If it is used outside the scale, the product performance will not be satisfied. •...

  • Page 9: Maintenance And Inspection

    (8) When applying to a single-phase motor or DC motor (8)-1 Standard type (trip class of 10A) and quick operating type (trip class of 5) The standard type relays for all ratings and the quick operating type relays for some ratings (a) Connect wires so that power (b) Set the adjustment dial to a is supplied in series to all...

  • Page 10: Additional Information Related To Ul And Csa Standards

    [kA] Breaker [kA] Breaker [kA] Breaker [kA] Breaker [kA] Breaker [kA] Breaker Raiti Raiting Raiting Raiting Raiting Raiting Raiting － TK13 SC-03 0.1-0.15 TK25 SK18 0.1-0.15 0.13-0.2 SC-0 SK22 0.13-0.2 0.18-0.27 0.18-0.27 SC-05 0.24-0.36 0.24-0.36 0.34-0.52 0.34-0.52 0.48-0.72 0.48-0.72 0.64-0.96 0.64-0.96...

  • Page 11: Wiring Diagram

    10.2 Wiring diagram (1) 3-wire control circuit (2) 2-wire control circuit Master SW by customer In 2-wire control circuits, be careful of the following points when using thermal overload relay with setting reset button to auto reset mode. If over-current flows, which is not large enough to blow the fuse or to operate the circuit breaker, the magnetic contactor repeats make/break operations.

This manual is also suitable for:

Tk13-tnTk26Tk25Tk26eTk26-tn

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