ABB 1SDA073677R1 YO E1.2..E6.2-XT7-XT7M 380-400 VAC Shunt Opening Release

The ABB 1SDA073677R1 YO E1.2..E6.2-XT7-XT7M 380-400 VAC is a shunt opening release designed for use with the ABB SACE Emax 2 series air circuit breakers (E1.2 through E6.2) as well as XT7 and XT7M Tmax XT moulded case circuit breakers, operating at a rated voltage of 380–400 VAC. This accessory enables remote electrical tripping of the circuit breaker, providing rapid and reliable opening of the breaker contacts upon receipt of an external control signal — essential for emergency shutdown, interlocking, and automated protection schemes in industrial power distribution systems.

Technical Specifications

Certifications & Standards

• CE: Complies with European Union directives for electrical equipment safety and electromagnetic compatibility.
• RoHS: Restriction of Hazardous Substances — free from restricted hazardous materials per EU Directive 2011/65/EU.
• REACH: Compliant with EU REACH regulation (EC) No 1907/2006 on chemical substance safety.
• ATEX: Suitable for use in potentially explosive atmospheres per EU Directive 2014/34/EU.
• VDE: Tested and certified by VDE (Verband der Elektrotechnik) to German/European electrical safety standards.
• WEEE: Compliant with the EU Waste Electrical and Electronic Equipment Directive 2012/19/EU for responsible end-of-life disposal.

Applications & Use Cases

• Remote trip and emergency shutdown of Emax 2 air circuit breakers in MV/LV switchgear panels
• Electrical interlocking between circuit breakers in bus-coupler and transfer switching schemes
• Integration with fire alarm, BMS, or SCADA systems for automated protective tripping
• Hazardous area installations where ATEX-rated components are required
• Industrial automation and control panel assemblies requiring IEC-compliant accessories