Relay Output Monitors

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Type	Trip Status	Trip Range	Delay Time	Voltage - Supply	Output Type	Circuit	Contact Rating @ Voltage	Mounting Type

PLR480A RELAY 380-500VAC VOLT MONITOR Littelfuse Inc.	4 In Stock	1 : ¥1,182.25000 Bulk	PLR	Bulk	Active	Voltage Sensing AC, Phase Loss, Phase Sequence	Energized Low	350 ~ 480V AC	No Delay	380 ~ 500VAC	Relay	SPDT (1 Form C)	5A @ 240VAC	Socketable
PLR240A 3 PHASE LINE MONITOR Littelfuse Inc.	2 In Stock	1 : ¥1,224.21000 Bulk	PLR	Bulk	Active	Voltage Sensing AC	Energized Low	190 ~ 270V AC	No Delay	190 ~ 270VAC	Relay	SPDT (1 Form C)	5A @ 240VAC	Chassis Mount
PLR380A RELAY 380-450VAC VOLT MONITOR Littelfuse Inc.	1 In Stock	1 : ¥1,182.25000 Bulk	PLR	Bulk	Active	Voltage Sensing AC, Phase Loss, Phase Sequence	Energized Low	310 ~ 410V AC	No Delay	340 ~ 450VAC	Relay	SPDT (1 Form C)	5A @ 240VAC	Socketable
PLR120A 3 PHASE LINE MONITOR Littelfuse Inc.	0 In Stock 8 Factory Check Lead Time	1 : ¥1,224.21000 Bulk	PLR	Bulk	Active	Voltage Sensing AC	Energized Low	95 ~ 140V AC	No Delay	95 ~ 140VAC	Relay	SPDT (1 Form C)	5A @ 240VAC	Chassis Mount

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Relay Output Monitors

Relay output monitors detect abnormal output of industrial relays and trigger a logical output or set of contacts. Common detection types include; AC and DC current or voltage, voltage asymmetry, ground fault, temperature monitoring, phase loss, and sequence or imbalance. They are selectable by trip range, delay time, supply voltage, mounting type, and switch circuitry.