Symcom 460-VBM Symcom Motorsaver Voltamonitoring Relay

Brand: Littelfuse

Part Number: 460-VBM

Littelfuse Symcom MotorSaver Voltage Monitoring Relay, 3-Phase, Series: 460, 190 to 480 VAC, 50/60 Hz Frequency, SPDT/(1 Form C) Contact Configuration, DIN Rail/Surface Mounting, 1 to 30 s Trip Delay, IP20/NEMA 1 Enclosure, 3.5 in H x 2.08 in W x 2.35 in D Dimensions

Additional Description: LTFS-460-VBM 3-PHASE VOLT MON/ 190-480V/ AD VltMon/190-480V/adj.HV,LV,TD,RD/DIN

Catalog Description: The 460 is a 3-phase voltage monitor that protects 190-480VAC or 475-600V, 50/60Hz motors regardless of size. The product provides a user selectable nominal voltage setpoint and the voltage monitor automatically senses line voltage. This unique microcontroller-based voltage and phase-sensing device constantly monitors the 3-phase voltages to detect harmful power line conditions such as low, high, and unbalanced voltage, loss of any phase, and phase reversal. When a harmful condition is detected, the 460 output relay is deactivated after a specified trip delay. The output relay reactivates after power line conditions return to an acceptable level for a specified amount of time (restart delay). The trip and restart delays prevent nuisance tripping due to rapidly fluctuating power line conditions. All 460 models feature adjustable 1-30 second trip delay, 1-500 second restart delay, 2-8% voltage unbalance trip point, and one form C contact except where noted.