ABB SACE YO-1SDA073674R1 YC-1SDA073687R1 Product Description

Overview

ABB SACE YO-1SDA073674R1 YC-1SDA073687R1 is a matched set of shunt opening release and shunt closing release for ABB SACE Emax 2 air circuit breakers and Tmax XT7 / XT7M moulded case breakers. The YO-1SDA073674R1 is the shunt trip opening coil, and YC-1SDA073687R1 is the shunt closing coil, both rated for 220–240 V AC/DC. This ABB SACE YO YC coil set serves as a reliable ABB Emax 2 opening and closing release accessory, designed for remote electrical opening and closing control of low-voltage main breakers in power distribution switchgear of the ABB Emax 2 opening and closing release accessory.

Features

This ABB SACE YO-1SDA073674R1 YC-1SDA073687R1 is factory matched for installation inside compatible breaker frames for the ABB Emax 2 opening and closing release accessory. The YO shunt trip coil triggers immediate breaker opening upon receiving control signal, supporting remote emergency trip and protection interlock functions. The YC closing coil provides electrical closing operation for the breaker after pre-charging of the closing spring. The compact plug-in structure simplifies on-site assembly and spare replacement. The ABB SACE YO-1SDA073674R1 YC-1SDA073687R1 supports both AC and DC control supply, compatible with standard switchgear control voltage. It is built with robust coil insulation and surge resistance, suitable for continuous operation in industrial and building power distribution panels of the ABB SACE YO YC coil set.

Specs

The ABB SACE YO-1SDA073674R1 YC-1SDA073687R1 series: Shunt opening release + shunt closing release set. Part number YO: 1SDA073674R1, Shunt Opening Release. Part number YC: 1SDA073687R1, Shunt Closing Release. Rated voltage: 220–240 V AC/DC. Compatible breaker frames: E1.2, E2.2, E4.2, E6.2, XT7, XT7M. Mounting: internal breaker accessory. The ABB SACE YO-1SDA073674R1 YC-1SDA073687R1 complies with IEC 60947 and CE standards as a ABB SACE YO YC coil set.

Principle

ABB SACE YO-1SDA073674R1 YC-1SDA073687R1 operates based on electromagnetic actuation principle. When control voltage is applied to the YO-1SDA073674R1 coil, the electromagnetic force pulls the trip mechanism to release the breaker latch and open the main contacts. When control voltage is applied to the YC-1SDA073687R1 coil, the coil drives the spring release mechanism to close the breaker main contacts. The two coils work independently; the closing coil only functions when the breaker closing spring is charged and the breaker is in open state. The electromagnetic coil structure of the ABB Emax 2 opening and closing release accessory enables remote electrical control of breaker status.

Applications

This ABB SACE YO-1SDA073674R1 YC-1SDA073687R1 is widely used in industrial main switchboards, building power distribution systems, data centre power panels and marine low-voltage distribution systems. It is used for remote control, automatic transfer scheme, emergency trip and SCADA control of Emax 2 and XT7 series breakers. It is stocked for spare replacement and retrofit of existing ABB SACE breaker installations. The ABB SACE YO-1SDA073674R1 YC-1SDA073687R1 delivers dependable remote electrical open and close control for low-voltage air circuit breakers as a proven ABB SACE YO YC coil set.