SSAC-SYMCOM PLMU11 Voltage Monitoring Relay
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SSAC-SYMCOM PLMU11 Voltage Monitoring Relay
SSAC-SYMCOM PLMU11 Voltage Monitoring Relay
Part #:PLMU11
SKU #: 355528
Key Features
Part #:PLMU11
SKU #: 355528
Brand: Littelfuse
Amperage Rating: 10, 10 A
Contact Form: SPDT
Horsepower: 1/4 hp at 125 VAC, 1/3 hp at 250 VAC
Number of Pins: 8
Series: PLMU
SSAC-SYMCOM PLMU11 Voltage Monitoring Relay
Littelfuse Voltage Monitoring Relay, Series: PLMU, 200 to 480 VAC, 10 A, 1/4 hp at 125 VAC, 1/3 hp at 250 VAC, 8 Pins, SPDT, -40 to 140 deg F, Plug-In/Socket Mount
Additional Description: LTFS-PLMU11 3 PHASE LINE MONITOR
Catalog Description: The PLMU11 continuously measures the voltage of each of the three phases to provide protection for 3-phase motors and sensitive loads. Its microcontroller senses under and overvoltage, voltage unbalance, phase loss, and phase reversal. Protection is provided even when regenerated voltages are present. Universal voltage operation from 200 to 480 VAC and standard base connection allows the PLMU11 to replace hundreds of competitive part numbers. Operation: Upon application of power, a 0.6s random start delay begins and the PLMU11 measures the voltage levels and line frequency and selects the voltage range. The output relay is energized and the LED glows green when all voltages are acceptable and the phase sequence is correct. LED flashes green during trip delay, glows red when output de-energizes. undervoltage, overvoltage, and voltage unbalance must be sensed for continuous trip delay before the relay de-energizes. Reenergization is automatic upon fault correction. The output relay will