Electrozad

The 460 is a 3-phase voltage monitor that protects 190 to 480 VAC or 475 to 600 VAC, 50/60 Hz 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 MotorSaver® 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 to 30 s trip delay, 1 to 500 s restart delay, 2-8% voltage unbalance trip point and one form C contact except where noted below.

Littelfuse® Symcom MotorSaver® Voltage Monitoring Relay, 3-Phase, Series: 460, 475 to 600 VAC, 50/60 Hz Frequency, SPDT/(1 Form C) Contact Configuration, DIN Rail/Surface Mounting, 1 to 30 s Trip Delay, NEMA 1/IP20 Enclosure, 3.5 in H x 2.08 in W x 2.35 in D Dimensions

• Auto-sensing wide voltage range, automatically senses system voltage between 475 to 600 VAC, saves setup time
• Adjustable trip & restart delay settings, prevent nuisance tripping due to rapidly fluctuating power line conditions
• Microcontroller based circuitry improved accuracy and higher reliability
• Advanced LED diagnostics quick visual indicator for cause of trip and relay status
• Adjustable voltage unbalance trip setting provides reliable protection when regenerative voltage is present
• 1 to 30 s adjustable trip delay time at low, high and unbalanced voltage

• Specification Sheet https://assets.unilogcorp.com/2/ITEM/DOC/IDW_DOCUMENT_a4f0ae6145fe08976894a3499feb14904f1066904aa14b130a01f67f746a3ff7.pdf