ABB 1SVR730700R2200 CM-MSS.23S Thermistor Motor Protection Relay 2 C/O 110-130V / 220-240V AC PTC

The ABB CM-MSS.23S (SKU: 1SVR730700R2200) is a thermistor-based motor protection relay designed to safeguard electric motors against overtemperature by continuously monitoring PTC thermistor resistance embedded in motor windings. Part of the trusted CM-MSS series, the CM-MSS.23S provides a 2 change-over (2 C/O) output contact configuration and accepts a wide supply voltage range of 110–130 V AC or 220–240 V AC, making it suitable for global industrial installations and control panel applications.

Technical Specifications

Certifications & Standards

• CE: Conformity with European Union safety, health, and environmental requirements
• UKCA: UK Conformity Assessed — meets Great Britain market regulations post-Brexit
• cULus: Certified to both Canadian (cUL) and US (UL) safety standards
• CCC: China Compulsory Certification for the Chinese market
• DNV GL: Marine and offshore type approval by DNV GL classification society
• CAN/CSA C22.2 No.14: Canadian standard for industrial control equipment
• IEC/EN 63000: Technical documentation for electrical and electronic equipment (RoHS)
• IEC/EN 60947-5-1: Low-voltage switchgear — control circuit devices and switching elements
• IEC/EN 60947-8: Control units for built-in thermal protection of rotating electrical machines
• UL 508: Standard for industrial control equipment (USA)
• CSA C22.2 No.14: Industrial control equipment per CSA Group standard
• REACH: Compliant with EU regulation on registration, evaluation, authorisation and restriction of chemicals
• RoHS: Restriction of Hazardous Substances — compliant with EU Directive 2011/65/EU

Applications & Use Cases

• Overtemperature protection of AC and DC motors via embedded PTC thermistors
• Motor protection in industrial automation and control panel environments
• Marine and offshore motor protection (DNV GL approved)
• HVAC fan and pump motor protection in building automation systems
• Compressor and conveyor drive motor protection in manufacturing