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)