Product Introduction

The TOQ3 is a terminal-type Automatic Transfer Switch (ATS) with a built-in circuit breaker, designed for reliable dual power supply systems. It automatically switches electrical loads between a primary (Normal) power source and a secondary (Reserve) power source, ensuring continuous operation of critical equipment. In the event of a failure in the primary power source—such as a loss of voltage or phase—the switch seamlessly transfers the load to the backup source. Once the primary power is restored, it automatically switches back. The device also features manual control modes for operational flexibility and testing. Compliant with international standard IEC60947-6-1, the TOQ3 is a robust solution for ensuring power continuity in various applications, including industrial, commercial, and residential backup power systems. Please note that the 63A model includes over-current and short-circuit protection, while the 100A and 125A models do not.

Product Data Sheet

Product Model: TOQ3

Product Type: Terminal Type Automatic Transfer Switch (ATS) with Built-in Circuit Breaker

Rated Voltage (L-N): 220V

System Voltage: 400V / 230V

Frequency: 50/60 Hz

Rated Current: 63A, 100A, 125A

Protection Features (63A Model): Over-current and short-circuit protection included

Protection Features (100A/125A Model): No over-current or short-circuit protection

Switching Time: < 4 seconds

Key Feature: Power is interrupted during switching (break-before-make)

Control Modes: Automatic and Manual

Automatic Mode Function: Switches to available power source based on priority (Normal power first)

Manual Mode Function: Allows user to manually select the power source

Priority Logic: Normal power has priority; switches to Reserve only if Normal is off

Generator Control Note: This switch cannot start or stop a generator

Voltage Monitoring: Monitors Phase A voltage of both sources for failure (loss of voltage or phase)

Compliance: IEC60947-6-1