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