ABB CM-PFS.S 1SVR730824R9300 3-Phase Monitoring Relay 200-500VAC

The ABB CM-PFS.S (article 1SVR730824R9300) is a three-phase monitoring relay from ABB's CM range, built to detect phase loss and incorrect phase sequence in three-phase networks. It accepts a three-phase measuring voltage of 200-500 V AC at 50/60 Hz and delivers a 2 c/o output for straightforward integration into control circuits.

Technical specifications:

• Series: CM-PFS.S
• ABB article number: 1SVR730824R9300
• EAN: 4016779851947
• Type: Three-phase monitoring relay
• Three-phase measuring voltage: 200-500 V AC (L1-L2-L3)
• Frequency: 50/60 Hz
• Output contacts: 2 c/o (changeover)
• Output contact rating: 250 V / 4 A
• Monitored parameters: Phase loss, phase sequence
• Threshold values: Fixed (factory-set)
• Terminal connection: Screw terminals with double-chamber cage connection

Features and benefits:

• Detects both phase loss and phase sequence faults, covering two critical failure modes in a single compact device
• Fixed threshold values eliminate the need for manual adjustment during commissioning
• Wide measuring voltage range of 200-500 V AC makes the relay suitable for a broad range of three-phase network voltages
• 2 c/o contacts rated at 250 V / 4 A allow direct wiring into control and alarm circuits
• Double-chamber cage screw terminals ensure secure, reliable conductor connections

Applications:

• Protection of three-phase motors against phase loss and wrong phase sequence before start-up
• Supervision of three-phase power supply quality in industrial control panels and switchgear
• Fault signalling and automatic shutdown in machinery and process automation systems
• Integration in motor starter assemblies requiring continuous phase monitoring

Also known as: ABB CM-PFS.S, CM-PFS.S 1SVR730824R9300, three-phase monitoring relay, phase loss relay, phase sequence monitoring relay.