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ABB CM-PFS.S Three-Phase Monitoring Relay (CM Series)

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  • Frequency Range: 50 / 60 Hz
  • Output Contacts: 2 c/o (SPDT changeover)
  • Contact Rating: 250 V / 4 A
  • Monitored Parameters: Phase Failure & Phase Sequence
  • Response Time Delay: 500 ms
  • Terminal Connection: Screw Terminals
  • Mounting Type: DIN Rail Mountable
  • Enclosure Rating: IP50 (Housing) / IP20 (Terminals)
  • Self-Powered Efficiency: The relay does not require an external power supply; it is directly powered from the L1-L2-L3 measuring voltage lines.
  • Phase Sequence Monitoring: Ensures that the phases are in the correct sequence (L1-L2-L3). If a sequence is inverted (which can cause three-phase motors to rotate backwards), the relay de-energizes.

Brand New ABB CM-PFS.S Phase Monitoring Relay. In stock — ships worldwide within 5-10 days.

1-year warranty against manufacturing defects. Contact us for pricing — reply within 24 hours.

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