ABB 1SVR730840R0300 CM-SRS.12S Current Monitoring Relay 1C/O 0.3-15A RMS 24-240VAC/DC Single-Phase

The ABB CM-SRS.12S (SKU: 1SVR730840R0300) is a single-phase current monitoring relay designed for industrial automation and control panel applications. Part of ABB's CM single-phase monitors series, the CM-SRS.12S monitors RMS current in the range of 0.3–15A and provides a 1 changeover (1C/O) output contact, making it ideal for protecting motors, heaters, and other loads against overcurrent and undercurrent faults. It operates on a wide supply voltage of 24–240V AC/DC, ensuring versatile integration across a broad range of industrial installations.

Technical Specifications

Certifications & Standards

• CE: Conformité Européenne — meets EU safety, health, and environmental requirements
• UKCA: UK Conformity Assessed — compliant with Great Britain market regulations
• cULus: Listed by Underwriters Laboratories for both US (UL508) and Canadian (CSA C22.2 No.14) markets
• UL508: UL standard for industrial control equipment
• CCC: China Compulsory Certification for the Chinese market
• CSA / CAN/CSA C22.2 No.14: Canadian Standards Association certification for industrial control equipment
• IEC/EN 60255-27: Mechanical requirements for measuring relays and protection equipment
• IEC/EN 63000: Technical documentation for the assessment of electrical and electronic products with respect to restrictions on hazardous substances
• IEC/EN 61000-6-2: Electromagnetic compatibility — generic immunity standard for industrial environments
• IEC/EN 61000-6-3: Electromagnetic compatibility — generic emission standard for residential and commercial environments
• IEC 60715: Dimensions of low-voltage switchgear and controlgear — standardized mounting on DIN rails
• 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

• Motor protection against overcurrent and undercurrent conditions in industrial automation
• Heater and resistive load monitoring in control panels
• Pump and fan protection to detect dry-run or overload faults
• Conveyor and machinery protection in manufacturing environments
• Process monitoring in building automation and HVAC systems