ABB 1SVR550881R9400 CM-PBE Phase Loss Monitoring Relay 1NO 220-240V AC Phase Monitoring Relay

The ABB CM-PBE phase monitoring relay (SKU: 1SVR550881R9400) is a compact, DIN-rail-mounted phase loss monitoring relay designed to protect three-phase electrical systems against phase loss conditions across L1, L2, and L3 relative to neutral (220–240V AC). Featuring a 1NO output contact, the CM-PBE delivers reliable fault detection for motors, pumps, compressors, and industrial automation equipment, making it an essential component in control panels and motor protection circuits.

Technical Specifications

Certifications & Standards

• CE: Compliant with European Union CE marking requirements
• CCC: China Compulsory Certification for the Chinese market
• UL 508: Listed per UL 508 standard for industrial control equipment
• cUL: Canadian UL listing for safety compliance
• CSA C22.2 No.14: Certified per Canadian Standards Association industrial control equipment standard
• CSA: CSA certified for Canadian and North American markets
• EU Declaration of Conformity: Full EU DoC issued by ABB
• IEC/EN 63000: Compliant with technical documentation requirements for RoHS
• EN 63000: European harmonised standard for technical documentation
• IEC/EN 61000-6: Electromagnetic compatibility — generic emission and immunity standards
• EN 61000-6: European EMC generic standards for industrial environments
• IEC 60715: Compliant with DIN rail mounting dimensions standard
• REACH: Compliant with EU REACH regulation on chemical substances
• RoHS: Restriction of Hazardous Substances compliant
• UKCA: UK Conformity Assessed marking for the UK market

Applications & Use Cases

• Three-phase motor protection against phase loss in pumps, fans, and compressors
• Industrial control panels requiring phase integrity monitoring
• Automation systems where phase loss could damage connected loads
• Building management and HVAC systems with three-phase supply
• Manufacturing and process control environments requiring reliable phase monitoring relay protection