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> Voltage/Phase Monitor Relay190-480 VAC DPDT 4 Second
Voltage/Phase Monitor Relay190-480 VAC DPDT 4 Second
Item #:250A
Manufacturer Item: 250A
Manufacturer:
LITTELFUSE, INC.
Littelfuse 250A Voltage/Phase Monitor Relay190-480 VAC DPDT 4 Second
Littelfuse 250A VAC age/Phase Monitor Relay, 190 - 480 VAC , DPDT, 4 sec The 250A is a 3-phase, auto-ranging, dual-range VAC age monitor that protects 190 - 480 VAC , 50/60 Hz motors regardless of size from low and high VAC age, unbalance/single-phase and reverse phase. The product provides a user selectable nominal VAC age setpoint and the VAC age monitor automatically selects between the 200 VAC and 400 VAC range. The 250A also features adjustable or manual restart delay. This unique microcontroller-based VAC age and phase-sensing device constantly monitors the 3-phase VAC ages to detect harmful power line conditions. When a harmful condition is detected, the output relay is deactivated after a specified trip delay. The output relay reactivates after power line conditions return to acceptable levels. The model 250A includes advanced single LED diagnostics. Five different light patterns distinguish between faults and normal conditions.,
Motor Protectors
Brand Name
Littelfuse
Part Type
Motor Protector
Voltage/Phase Monitor Relay190-480 VAC DPDT 4 Second
Quantity: