ABB YO-1SDA038292R1, YC-1SDA038302R1, YU-1SDA038312R1 Trip, Close, Undervoltage Coil Kit for Tmax Circuit Breaker

Overview

This assembly includes three accessory coils for ABB Tmax molded case circuit breakers: YO shunt trip coil (1SDA038292R1), YC closing coil (1SDA038302R1), YU undervoltage release coil (1SDA038312R1). These are factory accessories for remote electrical operation and interlock protection, widely stocked as spare parts for power distribution panels.

Features These coils are designed for matching Tmax MCCB frame, with stable electromagnetic performance and low heat generation. The set supports remote tripping, remote closing and undervoltage lockout interlock. Each coil can be replaced individually without replacing the whole circuit breaker. They carry built-in surge suppression and are compatible with standard control voltage variants.

Specs

Model: YO-1SDA038292R1, YC-1SDA038302R1, YU-1SDA038312R1 Series: ABB Tmax MCCB accessories Type: shunt trip coil, closing coil, undervoltage release Mounting: internal installation inside Tmax breaker Protection class: IP20 Certifications: CE, UL Product status: power distribution spare accessories

Principle

The YO shunt trip energizes to trigger breaker opening remotely. The YC closing coil closes the breaker upon energization. The YU undervoltage release trips the breaker automatically when control voltage drops below the threshold. All three coils provide hardwired interlock functions for electrical protection.

Applications

This coil set is widely used in power plants, water treatment, refineries and industrial substations. It is used for remote control, emergency trip and voltage loss interlock of Tmax molded case circuit breakers.