ABB 1SVR730840R0200 CM-SRS.11S Current Monitoring Relay 1C/O 3mA-1A RMS 24-240VAC/DC Single-Phase

The ABB CM-SRS.11S (SKU: 1SVR730840R0200) is a single-phase current monitoring relay designed for precise over- and under-current detection in industrial automation and control panel applications. Part of the ABB CM single-phase monitors series, the CM-SRS.11S monitors AC/DC currents from 3 mA to 1 A RMS across a wide supply voltage range of 24–240 V AC/DC, providing one changeover (1C/O) output contact for reliable protection and signalling. Its compact 22.5 mm DIN rail housing makes it ideal for space-constrained control cabinets.

Technical Specifications

Certifications & Standards

• CE: Conforms to European Union directives for electrical equipment
• UKCA: UK Conformity Assessed marking for the UK market
• cULus: UL and CSA dual-certified for North American safety requirements
• UL 508: Industrial control equipment standard
• CCC: China Compulsory Certification for the Chinese market
• CAN/CSA C22.2 No.14: Canadian standard for industrial control equipment
• CSA: Canadian Standards Association certification
• IEC/EN 60255-27: Measuring relays and protection equipment — product safety requirements
• IEC/EN 63000: Technical documentation for evaluation of electrical and electronic equipment with respect to the restriction of hazardous substances
• IEC/EN 61000-6-2: Electromagnetic compatibility — immunity for industrial environments
• IEC/EN 61000-6-3: Electromagnetic compatibility — emission standard for residential environments
• IEC 60715: Dimensions of low-voltage switchgear and controlgear — DIN rail mounting
• 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

• Over-current and under-current monitoring in industrial machinery and control panels
• Load monitoring for motors, pumps, fans, and conveyors
• Wire-break and load-loss detection in process automation
• Protection of heating elements and resistive loads
• Energy management and consumption monitoring systems
• Building automation and HVAC control systems

Frequently Asked Questions

What current range does the CM-SRS.11S monitor?

The CM-SRS.11S monitors currents from 3 mA to 1 A RMS, making it suitable for a wide range of low-current monitoring applications in industrial and commercial control systems.

What supply voltages are compatible with the CM-SRS.11S?

The relay accepts a universal supply voltage of 24–240 V AC/DC, eliminating the need for separate power supplies in most standard control panel applications.

What output does the CM-SRS.11S provide?

The CM-SRS.11S provides one changeover (1C/O) output contact, enabling both normally open (NO) and normally closed (NC) circuit configurations for alarm or control functions.

What DIN rail width does the CM-SRS.11S occupy?

The CM-SRS.11S fits a standard 22.5 mm DIN rail slot, consistent with IEC 60715 DIN rail mounting standards.