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  Monitoring relays  (1,168 offers of 6,202,147 product items)

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Siemens Current Monitoring Relay, 2 Phase, SPDT / 2565406 (1 offer) 
Monitoring Application = Current Electrical Phase = 2 Contact Configuration = SPDT
Siemens
3RR2143-3AW30
£ 164.254*
per piece
 
 piece
Siemens 5TT6111 electrical relay (1 offer) 
Siemens 5TT6111
Siemens
5TT6111
£ 158.893*
per piece
 
 piece
Selectron Monitoring Relay, Three Phase, DPDT, 66 - 400V ac, DIN Rail / 2887660 (1 offer) 
Electrical Phase = Three Voltage Sensing Range = 66 - 400V ac Mounting Type = DIN Rail
Selectron
EMR DU21D1
£ 202.859*
per piece
 
 piece
Schneider Electric Voltage Monitoring Relay, DPDT, 15 → 600 V, DIN Rail / 146187 (3 offers) 
Monitoring Relays
Schneider Electric
RM35UA13MW
£ 115.27*
per piece
 
 piece
Siemens Current Monitoring Relay, 3 Phase, SPDT / 2110137 (1 offer) 
The Siemens 3RR2243-1FA30 is a Monitoring relay, can be mounted to Contactor 3RT2.2-phase Supply 24 V AC/DC 1 change-over contact Monitoring for Current overshoot and undershoot Phase failure.Cable...
Siemens
3RR2243-1FA30
£ 254.023*
per piece
 
 piece
Siemens 5SV8111-4KK circuit breaker (2 offers) 
Siemens 5SV8111-4KK
Siemens
5SV8111-4KK
£ 1,067.08*
per piece
 
 piece
Siemens 5SV8101-4KK circuit breaker (1 offer) 
Siemens 5SV8101-4KK
Siemens
5SV8101-4KK
£ 1,300.301*
per piece
 
 piece
Selectron Monitoring Relay, Three Phase, DPDT, 1 → 230V ac, DIN Rail / 2887664 (1 offer) 
Electrical Phase = Three Voltage Sensing Range = 1 → 230V ac Mounting Type = DIN Rail
Selectron
EMR SU21N
£ 192.836*
per piece
 
 piece
Siemens Current Monitoring Relay, 3 Phase, SPDT / 2550845 (1 offer) 
Monitoring Application = Current Electrical Phase = 3 Contact Configuration = SPDT Voltage Sensitivity = Overvoltage, Undervoltage
Siemens
3RR2442-1AA40
£ 254.432*
per piece
 
 piece
Siemens Current Monitoring Relay, 2 Phase, SPDT / 2565405 (1 offer) 
Monitoring Application = Current Electrical Phase = 2 Contact Configuration = SPDT
Siemens
3RR2143-3AA30
£ 151.702*
per piece
 
 piece
Siemens Current Monitoring Relay, 1 Phase, SPDT, DIN Rail / 7586930 (3 offers) 
Monitoring Application = Current Electrical Phase = 1 Contact Configuration = SPDT Mounting Type = DIN Rail Minimum Current Sensed = 50mA Maximum Current Sensed = 15A Current Sensitivity = Overcurr...
Siemens
3UG4622-2AW30
£ 120.71*
per piece
 
 piece
Selectron Monitoring Relay, Three Phase, DPDT, 30 → 300V ac, DIN Rail / 2887661 (1 offer) 
Electrical Phase = Three Voltage Sensing Range = 30 → 300V ac Mounting Type = DIN Rail
Selectron
EMR DU22E
£ 276.112*
per piece
 
 piece
Siemens Current Monitoring Relay, 3 Phase, SPDT / 2565407 (1 offer) 
Monitoring Application = Current Electrical Phase = 3 Contact Configuration = SPDT
Siemens
3RR2243-3FA30
£ 271.813*
per piece
 
 piece
Siemens Current Monitoring Relay, 3 Phase, SPDT / 2550844 (1 offer) 
Monitoring Application = Current Electrical Phase = 3 Contact Configuration = SPDT Voltage Sensitivity = Overvoltage, Undervoltage
Siemens
3RR2441-2AA40
£ 227.433*
per piece
 
 piece
Siemens Current Monitoring Relay, 2 Phase, SPDT / 2565404 (1 offer) 
Monitoring Application = Current Electrical Phase = 2 Contact Configuration = SPDT
Siemens
3RR2143-1AA30
£ 146.532*
per piece
 
 piece
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