ABB 1SDA073776R1 S51 250V E1.2-XT7-XT7M Emax 2 Trip Indicator

The ABB 1SDA073776R1 S51 250V E1.2-XT7-XT7M is a trip indicator accessory designed for use with ABB Emax 2 series air circuit breakers, including the E1.2, XT7, and XT7M frame types. The S51 250V E1.2-XT7-XT7M provides clear visual indication of a trip event, supporting rapid fault diagnosis and system restoration in demanding industrial power distribution environments. Rated at 250V AC/DC, this compact unit measures 190 × 135 × 30 mm and weighs just 0.2 kg.

Technical Specifications

Certifications & Standards

• CE: Conformité Européenne — meets all applicable EU directives for safety and electromagnetic compatibility
• IEC/UL: Designed and tested in compliance with IEC and UL international standards for electrical accessories
• ATEX: Certified for use in potentially explosive atmospheres in accordance with ATEX directives
• VDE: Verified by VDE Institut, confirming compliance with German and European electrical safety requirements
• RoHS: Compliant with the Restriction of Hazardous Substances Directive — free from restricted toxic materials
• REACH: Compliant with EU REACH regulation on chemical substances
• WEEE: Registered under the Waste Electrical and Electronic Equipment Directive for responsible end-of-life recycling

Applications & Use Cases

The S51 250V E1.2-XT7-XT7M trip indicator is ideal for industrial power distribution panels, motor control centres, and switchgear assemblies where ABB Emax 2 air circuit breakers are deployed. Its visual trip signal supports maintenance engineers in quickly identifying tripped breakers in large installations, reducing downtime in manufacturing plants, data centres, utilities, and infrastructure projects. The ATEX certification also makes it suitable for oil & gas and chemical processing facilities with hazardous area classifications.