Fuji Electric TK26E User Manual

Thermal Overload Relays
Note!
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.
Type TK13 *1, *2, *3
TK25 *3
TK26 *1, *2, *3
TK26E *3
*1: L (Long-time operating type),
Q (Quick operating type)
*2: H (Separate mounting type)
*3: A (Auto-reset type)

Fuji Electric TK26E Specifications

General

Brand	Fuji Electric
Model	TK26E
Category	Relays
Language	English

Summary

Introduction and Safety Precautions

General Precautions and Safety Warnings

Covers general usage rules and defines 'Warning' and 'Caution' safety levels.

Product Identification and Structure

Structure and Part Names

Details the physical components and layout of the thermal overload relay.

Type and Specification Markings

Explains how to read the product's type and specification labels.

Manufacturing Lot Number Interpretation

Provides guidance on understanding the manufacturing lot number format.

Handling, Mounting, and Wiring

Unpacking and Storage Precautions

Instructions for safely unpacking and storing the thermal overload relays.

Mounting Guidelines and Combinations

Details mounting, clearances, and compatibility with magnetic contactors.

Wire Size and Tightening Torque

Specifies connectable wire sizes, types, and required tightening torques.

Mounting and Terminal Cover Procedures

Mounting and Removing from Magnetic Contactor

Step-by-step guide for attaching and detaching the relay from a contactor.

Terminal Cover Removal

Instructions on how to safely remove the terminal cover.

Operation and Setting Adjustments

Current Setting and Operation Indicators

Details on adjusting the current setting dial and understanding operation indicators.

Resetting Methods and Automatic Reset Configuration

Explains manual and automatic reset procedures and how to switch between them.

Separate Mounting Type Adjustments

Correction values for TK26H/TK26QH when used as separate mounting types.

Specific Applications and Maintenance

Application for Single-Phase and DC Motors

Guidance on using the relays with single-phase or DC motors, including wiring.

Pre-Operation and Periodical Inspection

Essential checks to perform before operation and recommendations for regular checks.

Standards Compliance and Wiring Diagrams

UL/CSA Standards: Short Circuit Protection Devices

Table listing suitable short circuit protective devices for various relay types.

Control Circuit Wiring Diagrams

Provides schematics for 3-wire and 2-wire control circuits.