3 Phase Form C Adjustable Line Voltage Monitor (190-480V)

Automatically senses line voltage, adjustable 1-30 second trip delay, 1-500 second restart delay, and 2-8% voltage unbalance trip point The 460 is a 3-phase voltage monitor that protects 190-480VAC, 50/60Hz motors regardless of size. The product provides a user selectable nominal voltage set point and the voltage monitor automatically senses line voltage.,br> 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. Features: Input Voltage (V): 190 to 480VAC Maximum Input Power: 6W Input AC Line Frequency (Hz): 50/60Hz (50Hz will increase all delay timers by 20%.) Output Form: Form C Output Load Rating (VA): Pilot Duty: 480VA @ 240VAC B300; General Purpose: 10A @ 240VAC Restart Delay Range: 1 - 500s adjustable Trip Delay Range: Over Under and Unbalanced Voltage: 1 - 30s adjustable; Single-Phase Faults (>25%UB): 1s fixed Trip Point Accuracy (%): ±1% Overvoltage Trip Voltage (%): 110% Overvoltage Reset Voltage (%) : 107% Undervoltage Trip Voltage: 90% Undervoltage Reset Voltage (%): 93% Voltage Unbalance Trip Point (%): 2 - 8% adjustable