ABB 1SAM201904R1005 UA1-230 230V 50Hz/240V 60Hz Undervoltage Release

The ABB UA1-230 undervoltage release (SKU 1SAM201904R1005) is a lateral left-side mounted accessory designed to protect motors and electrical circuits by tripping the associated manual motor starter when supply voltage falls below a safe threshold. Rated at 230 V 50 Hz / 240 V 60 Hz, the UA1-230 integrates seamlessly into ABB's motor starter and motor protection range, providing reliable undervoltage protection in industrial automation and control panel applications.

Technical Specifications

Certifications & Standards

• CE: Conforms to European low-voltage and EMC directives for the European market
• UKCA: UK Conformity Assessed marking for Great Britain market compliance
• UL 508: UL-listed industrial control equipment standard
• UL 60947-1: UL standard for low-voltage switchgear and controlgear — general rules
• UL 60947-4-1: UL standard for electromechanical contactors and motor-starters
• CSA 22.2 No.14: Canadian Standards Association standard for industrial control equipment
• cUL: Canadian UL recognition for the Canadian market
• IEC/EN 60947-1: International/European standard for low-voltage switchgear — general rules
• IEC/EN 60947-4-1: International/European standard for electromechanical contactors and motor-starters
• IEC 60068-2: Environmental testing standard for temperature, humidity, and mechanical stress
• REACH: Compliant with EU regulation on Registration, Evaluation, Authorisation and Restriction of Chemicals
• RoHS: Restriction of Hazardous Substances directive compliant
• WEEE: Waste Electrical and Electronic Equipment directive compliant

Applications & Use Cases

• Motor protection in industrial automation and control panels
• Undervoltage trip function for manual motor starters in manufacturing machinery
• Safety interlocking in process control systems requiring automatic disconnection on voltage loss
• Integration into motor control centres (MCCs) requiring left-side accessory mounting
• Conveyor, pump, fan, and compressor motor protection circuits