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
3UG45121AR20 VOLT. MON REL,1CO,160-690VAC Siemens	26 In Stock	1 : £179.29000 Bulk	SIRIUS 3UG4	Bulk	Active	Phase Loss, Phase Sequence	-	160 ~ 690V AC	-	160 ~ 690VAC	Relay	SPDT (1 Form C)	3A @ 400VAC	DIN Rail
3UG46141BR20 ASM_MONITOR_REL_SCR_TERM Siemens	8 In Stock	1 : £246.29000 Bulk	SIRIUS 3UG4	Bulk	Active	Voltage Asymmetry, Phase Loss, Phase Sequence	-	160 ~ 690V AC	0.1 Sec ~ 20 Sec	160 ~ 690VAC	Relay	DPDT (2 Form C)	3A @ 400VAC	DIN Rail
3UG46221AW30 PILOT_SWITCH_CURR_3UG4622-AW30 0 Siemens	8 In Stock	1 : £277.42000 Bulk	SIRIUS 3UG4	Bulk	Active	Current Sensing AC/DC	-	0.05 ~ 15A	0.1 Sec ~ 20 Sec	20.4 ~ 264VAC/DC	Relay	SPDT (1 Form C)	3A @ 400VAC	DIN Rail
3UG45121BR20 PHASE FAILURE AND SEQUENCE Siemens	3 In Stock	1 : £204.85000 Bulk	SIRIUS 3UG4	Bulk	Active	Phase Loss, Phase Sequence	-	160 ~ 690V AC	-	160 ~ 690VAC	Relay	DPDT (2 Form C)	3A @ 400VAC	DIN Rail
3UG46331AL30 DIGITAL MONITORING RELAY Siemens	12 In Stock	1 : £261.90000 Bulk	SIRIUS 3UG4	Bulk	Active	Voltage Sensing AC/DC	-	17 ~ 275V AC/DC	0.1 Sec ~ 20 Sec	17 ~ 275VAC/DC	Relay	SPDT (1 Form C)	-	DIN Rail
3UG45112BP20 PHASE SEQUENCE MONITORING Siemens	4 In Stock	1 : £155.93000 Bulk	SIRIUS 3UG4	Bulk	Active	Phase Sequence	-	320 ~ 500V AC	-	320 ~ 500VAC	Relay	DPDT (2 Form C)	3A @ 400VAC	DIN Rail
3UG46251CW30 DIGITAL MONITORING RELAY,40A,240 Siemens	2 In Stock	1 : £203.91000 Bulk	SIRIUS 3UG4	Bulk	Active	Current Sensing AC	-	0.03 ~ 43A	0.1 Sec ~ 20 Sec	24 ~ 240VAC/DC	Relay	DPDT (2 Form C)	3A @ 250VAC	DIN Rail
3UG45131BR20 3PH VOLTAGE MONITOR Siemens	18 In Stock	1 : £345.86000 Bulk	SIRIUS 3UG4	Bulk	Active	Voltage Asymmetry, Phase Loss, Phase Sequence	-	160 ~ 690V AC	0.1 Sec ~ 20 Sec	160 ~ 690VAC	Relay	DPDT (2 Form C)	3A @ 400VAC	DIN Rail
3UG45111BP20 PHASE SEQUENCE MONITORING Siemens	1 In Stock	1 : £121.18000 Bulk	SIRIUS 3UG4	Bulk	Active	Phase Sequence	-	320 ~ 500V AC	-	320 ~ 500VAC	Relay	DPDT (2 Form C)	3A @ 400VAC	DIN Rail
3UG45111AP20 VOLT. MON REL,1CO,320-500VAC Siemens	1 In Stock	1 : £146.18000 Bulk	SIRIUS 3UG4	Bulk	Active	Phase Sequence	-	320 ~ 500V AC	-	320 ~ 500VAC	Relay	SPDT (1 Form C)	3A @ 400VAC	DIN Rail
3UG45111AN20 VOLT. MON REL,1CO,160-260VAC Siemens	1 In Stock	1 : £146.18000 Bulk	SIRIUS 3UG4	Bulk	Active	Phase Sequence	-	160 ~ 260V AC	-	160 ~ 260VAC	Relay	SPDT (1 Form C)	3A @ 400VAC	DIN Rail
3UG45111AQ20 PHASE SEQUENCE MONITORING Siemens	1 In Stock	1 : £146.18000 Bulk	SIRIUS 3UG4	Bulk	Active	Phase Sequence	-	420 ~ 690V AC	-	420 ~ 690VAC	Relay	SPDT (1 Form C)	3A @ 400VAC	DIN Rail

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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.