ABB 1SDA101982R1 UVD XT5-XT6 220..250Va.c./d.c. Time Delay Under Voltage Coil Tmax XT

The ABB UVD XT5-XT6 220..250Va.c./d.c. (SKU: 1SDA101982R1) is a time delay under voltage coil designed for use with ABB Tmax XT5 and XT6 moulded case circuit breakers. This accessory coil monitors supply voltage and introduces a controlled time delay before tripping the breaker upon an undervoltage condition, preventing nuisance trips during brief voltage dips in industrial and commercial power distribution systems. Rated for 220–250 V a.c./d.c. control voltage, it integrates directly into Tmax XT series breakers for reliable protection and automation.

Technical Specifications

Certifications & Standards

• CE: Conformité Européenne — meets EU safety, health, and environmental protection requirements
• RoHS: Restriction of Hazardous Substances — compliant with EU Directive 2011/65/EU limiting hazardous materials in electrical equipment
• REACH: Registration, Evaluation, Authorisation and Restriction of Chemicals — compliant with EU REACH regulation (EC) No 1907/2006
• IEC 60947-2: Compliant with international standard for low-voltage switchgear and controlgear — circuit breakers
• WEEE: Waste Electrical and Electronic Equipment Directive — product registered and compliant for proper end-of-life recycling

Applications & Use Cases

• Undervoltage protection with intentional time delay in industrial power distribution panels
preventive
• Prevention of nuisance tripping during momentary voltage sags in manufacturing facilities
• Motor control centres and switchgear assemblies using ABB Tmax XT5 or XT6 breakers
• Building automation and infrastructure projects requiring IEC 60947-2 compliant accessories
• Process control and automation systems where coordinated undervoltage tripping is critical