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

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Siemens Current Monitoring Relay, 3 Phase, SPDT / 2131226 (1 offer) 
The Siemens 3RR2242-2FW30 is a Monitoring relay, can be mounted to Contactor 3RT2.2-phase Supply 24-240 V AC/DC 1 change-over contact Monitoring for Current overshoot and undershoot Phase failure.C...
Siemens
3RR2242-2FW30
£ 207.602*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; SPST-NO; IP20 (1 offer) 
Manufacturer: POLLIN Mounting: for DIN rail mounting Operating temperature: -20...40°C Kind of output 1: SPST-NO Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Max. ...
POLLIN
SZR-1
£ 125.39*
per piece
 
 piece
Siemens Phase Monitoring Relay, 3 Phase, SPDT, 160 → 760V ac, DIN Rail / 149154 (1 offer) 
Monitoring Application = Phase Electrical Phase = 3 Voltage Sensing Range = 160 → 760V ac Voltage Sensitivity = Phase Asymmetry, Phase Failure, Phase Sequence Mounting Type = DIN Rail Better World ...
Siemens
3UG5512-2AR20
£ 103.838*
per piece
 
 piece
Tele Current Monitoring Relay, 1 Phase, DPDT, DIN Rail / 1239731 (1 offer) 
KAPPA Series Current Monitoring Relay. TELE KAPPA series AC current monitoring for single phase mains. Featuring overcurrent and undercurrent monitoring and a single change over contact. The KAPPA ...
Tele
K3IM5AACL20 230VAC
£ 186.134*
per piece
 
 piece
Siemens Current Monitoring Relay, 3 Phase, SPDT, Direct Mount / 152793 (1 offer) 
Monitoring Application = Current Electrical Phase = 3 Contact Configuration = SPDT Mounting Type = Direct Mount
Siemens
3RR2241-2FA30
£ 184.251*
per piece
 
 piece
Siemens Phase Monitoring Relay, 3 Phase, DPDT, 160 → 760V ac, DIN Rail / 149151 (1 offer) 
Monitoring Application = Phase Electrical Phase = 3 Voltage Sensing Range = 160 → 760V ac Voltage Sensitivity = Phase Asymmetry, Phase Failure, Phase Sequence Mounting Type = DIN Rail Better World ...
Siemens
3UG5512-1BR20
£ 117.164*
per piece
 
 piece
Siemens Phase, Temperature, Voltage Monitoring Relay, 1 Phase / 2751764 (1 offer) 
Monitoring Application = Phase, Temperature, Voltage Electrical Phase = 1 Voltage Sensitivity = Overvoltage
Siemens
7SX80003BA501CA0ZP10
£ 4,356.379*
per piece
 
 piece
Tele Current Monitoring Relay, 1 Phase, SPDT, DIN Rail / 1239723 (1 offer) 
VEO Series Current Monitoring Relay. TELE VEO series AC current monitoring for single phase mains. Featuring overcurrent and undercurrent monitoring and a single change over contact. The VEO series...
Tele
V2IM10AL10
£ 125.70*
per piece
 
 piece
Siemens Frequency, Phase, Voltage Monitoring Relay, 3 Phase, DPDT, 90 → 760V ac, DIN Rail / 149167 (1 offer) 
Monitoring Application = Frequency, Phase, Voltage Electrical Phase = 3 Voltage Sensing Range = 90 → 760V ac Mounting Type = DIN Rail Better World Product = Yes
Siemens
3UG5618-1CR21
£ 238.037*
per piece
 
 piece
Siemens
3UG5512-1AR20
£ 102.158*
per piece
 
 piece
Tele Phase Monitoring Relay, 1, 3 Phase, SPDT, DIN Rail / 1239724 (1 offer) 
VEO Series Voltage Monitoring Relay. TELE VEO series AC and DC voltage monitoring relay. Multifunction monitoring in a slim easy to use package. The VEO series have a self-extinguishing plastic bod...
Tele
V2PM400Y/230VS10
£ 125.29*
per piece
 
 piece
Siemens Frequency, Phase, Voltage Monitoring Relay, 3 Phase, SPDT, 90 → 760V ac, DIN Rail / 149173 (1 offer) 
Monitoring Application = Frequency, Phase, Voltage Electrical Phase = 3 Voltage Sensing Range = 90 → 760V ac Mounting Type = DIN Rail Better World Product = Yes
Siemens
3UG5816-2AA40
£ 212.078*
per piece
 
 piece
Siemens 5TT3402 electrical relay (2 offers) 
Siemens 5TT3402
Siemens
5TT3402
£ 30.16*
per piece
 
 piece
Tele Phase, Voltage Monitoring Relay, 1, 3 Phase, DPDT, Maximum of 400 V, DIN Rail / 1239733 (1 offer) 
KAPPA Series Voltage Monitoring Relay. TELE KAPPA series AC and DC voltage monitoring relay. Multifunction monitoring in a slim easy to use package. The KAPPA series have a self-extinguishing plast...
Tele
K3YM400VSY20
£ 192.03*
per piece
 
 piece
Siemens
7SR54216AA260AA0
£ 6,097.834*
per piece
 
 piece
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