ABB CM-PFE Three-Phase Monitoring Relay (CM Series)

• Phase Failure (Phase Loss): Instantly detects if one of the three phases goes completely dead or falls below fixed operational thresholds, preventing motors from "single-phasing" (which causes catastrophic winding burnouts).
• Phase Sequence: Ensures that the physical phase rotation matches the expected sequence (L1-L2-L3). If the rotation is reversed, the relay trips to prevent industrial equipment—like motors, pumps, and compressors—from spinning backwards and destroying themselves.
• Metric / Parameter: Specification Details
• Product ID (Standard): 1SVR550824R9100
• Frequency Range: 50 / 60 Hz
• Output Type: 1 c/o (SPDT / Changeover) contact operating on the closed-circuit principle
• Contact Rating: Maximum 250 V / 4 A
• Time Delay Response: ≈ 500 ms start-up/fault delay (fixed thresholds)
• Environmental Temperature: -20°C to +60°C (operational)
• Physical Dimensions: 22.5 mm (W) x 78 mm (H) x 78.5 mm (D)

Brand New ABB CM-PFE 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.