SSAC-SYMCOM PLR480A Voltage Monitoring Relay

Littelfuse SSAC Voltage Monitoring Relay, 3-Phase Electro-Mechanical, Series: PLR, 380 to 500 VAC, 50/60 Hz Frequency, SPDT 1 Form C Contact Configuration, 8 Pins, Plug-In/Socket Mounting, Octal Base Plug-In Terminal, 2.39 in W x 1.78 in D x 3.2 in H Dimensions

Additional Description: LTFS-PLR480A 3 PHASE LINE MONITOR

Catalog Description: The PLR Series provides a cost effective means of preventing 3-phase motor startup during adverse voltage conditions. Proper A-B-C sequence must occur in order for the PLR’s output contacts to energize. In addition, the relay will not energize when an undervoltage or phase loss condition is present. The PLR protects a motor against undervoltage operation. The adjustment knob sets the undervoltage trip point. Operation: The output relay is energized and the LED glows when all voltages are acceptable and the phase sequence is correct. Undervoltage must be sensed for a continuous dropout delay period before the relay de-energizes. Reset is automatic upon correction of the fault condition. The output relay will not energize if a fault condition is sensed as power is applied.