3 Phase Form C Adjustable Voltage Monitor (475-600V)

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 set point 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. Specifications: Input Voltage (V): 475 to 600VAC 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 Voltage Unbalance Reset (%): Trip setting minus 1% (5-8%) or Trip setting minus 0.5% (2-4%) Protection Class: IP20 NEMA 1 (finger safe) Termination Type: Torque: 6in-lbs; Wire: Stranded or solid 12-20AWG one per terminal Mounting Method: 35mm DIN rail or Surface Mount (#6 or #8 screws) Operating Temperature: -20° to 70°C (-4° to 158°F) Storage Temperature (F/C): -40° to 80°C (-40° to 176°F) Humidity: 10-95% non condensing per IEC 68-2-3 Dimensions: 3.50 in H x 2.08 in W x 2.35 in D (88.9 x 52.9 x 59.7 mm)