ABB 1SDA054913R1 AUX-C T4-T5-T6 2Q 400 Vac 2-Contact 400V AC Auxiliary Contact Block

The ABB 1SDA054913R1 AUX-C T4-T5-T6 2Q 400 Vac is a 2-contact auxiliary contact block rated at 400V AC, designed for use with ABB SACE Tmax T4, T5, and T6 moulded case circuit breakers. Part of the trusted SACE Tmax T series, this auxiliary contact block enables reliable status signalling and remote monitoring of circuit breaker positions in industrial control panels and power distribution systems. Compact in form at 110 × 140 × 60 mm and weighing just 0.04 kg, it integrates seamlessly into existing Tmax T-series installations.

Technical Specifications

Certifications & Standards

• CE: Conformité Européenne — meets all applicable EU safety, health, and environmental protection requirements
• IEC: Designed and tested in accordance with relevant International Electrotechnical Commission standards for auxiliary contact devices
• RoHS: Compliant with the Restriction of Hazardous Substances Directive — free from lead, mercury, cadmium, and other restricted substances
• REACH: Compliant with EU REACH regulation (Registration, Evaluation, Authorisation and Restriction of Chemicals)
• WEEE: Registered under the Waste Electrical and Electronic Equipment Directive for proper end-of-life disposal and recycling

Applications & Use Cases

• Circuit breaker status signalling in industrial switchboards and motor control centres
• Remote monitoring and SCADA integration for Tmax T4, T5, and T6 breaker positions
• Interlocking and supervisory control circuits in power distribution panels
• Building automation, energy management, and industrial automation control systems