Phase Sequence Corrector: Protect Your 3-Phase Equipment from Reverse Rotation

In any three-phase electrical system, the sequence of phases (R, Y, B) plays a crucial role in the correct operation of motors and heavy machinery. If the sequence is wrong, motors may rotate in the reverse direction, causing mechanical damage, production loss, or even accidents. That’s why a Phase Sequence Corrector is essential—especially in automated systems.

What is a Phase Sequence Corrector?

A Phase Sequence Corrector is an electrical device that automatically detects and corrects incorrect phase rotation in a three-phase power supply. It ensures that your equipment always receives the correct phase order—R → Y → B—before the load is connected.

Why is Phase Sequence Important?

•  Prevents reverse motor rotation

• Protects pumps, compressors, and conveyors

•  Avoids damage to sensitive control systems

• Essential in generator-fed systems and ATS panels

How Does a Phase Sequence Corrector Work?

1. Detection: The device monitors the incoming phase sequence.

2. Correction: If the sequence is reversed, it automatically interchanges two phases to restore the correct rotation order.

3. Supply to Load: Only once the sequence is corrected, power is sent to the connected load or motor.

Key Features of Selfguard Phase Sequence Correctors

•  Auto-correction mechanism

•  Works with generators and main supply

•  Easy integration with AMF and changeover panels

•  LED indicators for status monitoring

•  Models available for 5kVA to 100kVA systems

Where Should You Use It?

• Motor control panels

• Generator AMF systems

• HVAC units

• Elevators and escalators

• Industrial automation setups

Ensure phase protection before the damage happens.
 Choose Selfguard Phase Sequence Correctors for uninterrupted, safe operations.