Specifications Parameter Specification Manufacturer Schneider Electric Series / Family Acti9 iCNV Model / Type iCNV 4P 50A (4‑pole over/under‑voltage protective relay) Poles 4P (3 phases + neutral monitored) Rated Operational Current (Ie) 50 A AC Supply Voltage Limits 50 – 440 V AC (3 phases) Operational Voltage Range 87 – 440 V AC (2 phases) / 120 – 440 V AC (single phase) Rated Operational Voltage (Ue) 230 V AC (phase‑to‑neutral) / 400 V AC (phase‑to‑phase) Over‑Voltage Trip Thresholds Approx. 275 V – 400 V with timed delays (varies by level) Under‑Voltage Trip Thresholds Approx. 50 – 160 V Trip Time Response Varies with voltage level (fast at higher deviations) Reset Type Automatic reset after voltage returns to acceptable range Maximum Leakage / Standby Current ≤ ~2 mA Electric Clearance (isolation) 1.2 mm Creepage Distance ~5.6 mm Rated Impulse Withstand Voltage (Uimp) 4 kV between phases and between phase/neutral Local Indication LED or mechanical status indication (voltage OK / fault) Mounting DIN‑rail (35 mm) compatible Typical Applications Voltage monitoring ahead of motors, control panels, and sensitive loads Standards / Compliance IEC/EN relevant voltage monitoring device practices (verify local datasheet)