ABB 1SVR730830R0300 CM-ESS.1S Voltage Monitoring Relay 1 C/O 3-600V RMS 24-240V AC/DC 4A Single-Phase

The ABB CM-ESS.1S voltage monitoring relay (SKU: 1SVR730830R0300) is a single-phase monitoring device from ABB's CM series, designed to detect under-voltage, over-voltage, and supply failures across a wide measurement range of 3–600 V RMS. With a universal auxiliary supply of 24–240 V AC/DC, a 1 C/O (SPDT) output contact rated at 4 A, and a compact 22.5 mm DIN rail housing, the CM-ESS.1S suits a broad range of industrial control panel and power quality applications where reliable voltage supervision is critical.

Technical Specifications

Certifications & Standards

• CE: European Conformity — meets EU safety, health, and environmental requirements
• UKCA: UK Conformity Assessed — required for products placed on the Great Britain market
• cULus: Listed to both UL (USA) and CSA (Canada) standards for industrial control equipment
• UL 508: UL Standard for Industrial Control Equipment
• CSA C22.2 No.14: Canadian standard for industrial control equipment
• CSA: CSA Group certification for Canadian market
• CCC: China Compulsory Certification for the Chinese market
• IEC/EN 60255-27: Measuring relays and protection equipment — product safety requirements
• IEC/EN 63000: Technical documentation for the assessment of electrical and electronic products with respect to the restriction of hazardous substances
• IEC/EN 61000-6: Electromagnetic compatibility — generic emission and immunity standards
• IEC 60715: Dimensions of low-voltage switchgear and controlgear — DIN rail mounting
• EN 63000: European harmonised standard for RoHS technical documentation
• EN 60255-27: European harmonised standard for measuring relay product safety
• EN 61000-6: European harmonised EMC generic standards
• RoHS: Restriction of Hazardous Substances — compliant with EU Directive 2011/65/EU
• REACH: Compliant with EU REACH Regulation (EC) No 1907/2006 on chemical substances