ABB 1SDA073756R1 AUX 6Q 400Vac E2.2...E6.2 INST 400V AC Accessory for Air Circuit Breaker

The ABB 1SDA073756R1 AUX 6Q 400Vac E2.2...E6.2 INST is a factory-rated auxiliary accessory designed for use with the ABB SACE Emax2 series air circuit breakers (E2.2 through E6.2). Operating at a rated voltage of 400V AC, this compact component — measuring 500 × 220 × 40 mm and weighing just 0.2 kg — integrates directly into Emax2 frame configurations to extend monitoring and signalling functionality in demanding industrial power distribution applications.

Technical Specifications

Certifications & Standards

• CE: Conformité Européenne — meets all applicable EU safety, health, and environmental requirements
• RoHS: Restriction of Hazardous Substances Directive — free from restricted hazardous materials
• REACH: Registration, Evaluation, Authorisation and Restriction of Chemicals — compliant with EU chemical safety regulations
• ATEX: Certified for use in potentially explosive atmospheres in accordance with EU ATEX directive
• VDE: Verified and tested to VDE standards (Verband der Elektrotechnik) for electrical safety
• WEEE: Waste Electrical and Electronic Equipment Directive — registered for environmentally responsible end-of-life disposal

Applications & Use Cases

• Auxiliary signalling and status monitoring in main power distribution switchboards
• Integration with ABB Emax2 (E2.2–E6.2) frames in industrial control panels and MCC assemblies
• Use in hazardous area installations where ATEX certification is mandated
• Retrofit and upgrade projects requiring compatible OEM accessories for existing Emax2 installations
• Data centres, utilities, oil & gas facilities, and heavy industrial environments demanding certified electrical components