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  Monitoring relays  (1,017 offers of 5,348,854 product items)

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ABB Temperature Monitoring Relay, 1 Phase, SPST, DIN Rail / 464508 (1 offer) 
Monitoring Application = Temperature Electrical Phase = 1 Contact Configuration = SPST Mounting Type = DIN Rail Temperature Sensitivity = Overtemperature, Undertemperature Series = CM-MSE Standards...
ABB
1SVR550800R9300 CM-MSE
from £ 46.758*
per piece
 
 piece
Finder 70.61.8.400.0000 3 Phase Network Monitoring Relay (208...480VAC) (3 offers) 
The Finder 70.61.8.400.0000 is a Network Monitoring Relay rated at 208 to 480VAC. The Relay is from the Finder 70 series and is for 35mm DIN rail mounting. This Electronic Voltage Monitoring Relay ...
Finder
70.61.8.400.0000
from £ 37.20*
per piece
 
 piece
ABB Phase Monitoring Relay, 1, 3 Phase, SPST, 220 → 240V ac, DIN Rail / 4429455 (2 offers) 
Monitoring Application = Phase Electrical Phase = 1, 3 Voltage Sensing Range = 220 → 240V ac Mounting Type = DIN Rail Phase Sensitivity = Neutral Loss, Phase Loss Time Delay = 150ms Series = CM-PBE...
ABB
1SVR550881R9400
from £ 33.60*
per piece
 
 piece
ABB Phase Monitoring Relay, 1, 3 Phase, SPST, DIN Rail / 4429001 (2 offers) 
CM-PBE Phase Loss Monitor. Monitors 1-phase ; 3-phase supply voltages for phase failure. On fault, relay de-energizes ; yellow LED turns off 5% fixed hysteresis 0.5 sec fixed OFF delay
ABB
1SVR550882R9500
from £ 40.23*
per piece
 
 piece
ABB CM-PVE electrical relay (2 offers) 
The CM-PVE relay is from the CM three-phase monitors range. This relay operates with a rated control supply voltage / three-phase measuring voltage of 320-460 V AC and has a 1 n/o output (closed ci...
ABB
1SVR550871R9500
from £ 35.72*
per piece
 
 piece
Crouzet Current Monitoring Relay, 1 Phase, SPDT, DIN Rail / 4633654 (3 offers) 
2 to 500mA (EIL), 0.1 to 10A (EIH) and 10 to 100A (EIT with CT) measurement ranges Current transformer available for use with EIT control relays; stock no ; 283-6384 283-6384. Current Control Relay...
Crouzet
84871034
from £ 128.94*
per piece
 
 piece
ABB CM-PFE electrical relay (4 offers) 
The CM-PFE relay is from the CM three-phase monitors range. This relay operates with a rated control supply voltage / three-phase measuring voltage of 208-440 V AC and has a 1 c/o output (closed ci...
ABB
1SVR550824R9100
from £ 36.48*
per piece
 
 piece
ABB CM-PVE electrical relay (3 offers) 
The CM-PVE relay is from the CM three-phase monitors range. This relay operates with a rated control supply voltage / three-phase measuring voltage of 185-265 V AC and has a 1 n/o output (closed ci...
ABB
1SVR550870R9400
from £ 36.33*
per piece
 
 piece
ABB Temperature Monitoring Relay, 1 Phase, SPST, DIN Rail / 4429405 (1 offer) 
Monitoring Application = Temperature Electrical Phase = 1 Contact Configuration = SPST Mounting Type = DIN Rail Minimum Current Sensed = 2A Maximum Current Sensed = 4A Time Delay = <100ms Frequency...
ABB
1SVR550801R9300
from £ 37.23*
per piece
 
 piece
Crouzet Voltage Monitoring Relay, 3 Phase, DPDT, 194 → 528V ac, DIN Rail / 262198 (2 offers) 
M3U/H3U series three-phase voltage control relays. H3US and M3US relays control three-phase networks: Overvoltage between phases and undervoltage between phases. The H3USN relay controls three-phas...
Crouzet
84873220
from £ 119.60*
per piece
 
 piece
Crouzet Phase, Voltage Monitoring Relay, 3 Phase, DPDT, 194 → 528 V, DIN Rail / 262003 (2 offers) 
Multi Function Phase Control Relays 35mm - C-Lynx. The HWUA 3 phase network control relay monitors:- The correct sequence of phases L1, L2, L3,- Total phase failure,- Undervoltage and overvoltage f...
Crouzet
84873026
from £ 144.13*
per piece
 
 piece
Crouzet Current Monitoring Relay, 1 Phase, SPDT, DIN Rail / 4633373 (1 offer) 
2 to 500mA (EIL), 0.1 to 10A (EIH) and 10 to 100A (EIT with CT) measurement ranges Current transformer available for use with EIT control relays; stock no ; 283-6384 283-6384. Current Control Relay...
Crouzet
84871020
from £ 111.504*
per piece
 
 piece
Carlo Gavazzi Current, Voltage Monitoring Relay, SPDT, 0.4 → 500 V ac, 2 → 500V dc, DIN Rail / 7271256 (3 offers) 
Over Voltage - Over Current Monitoring Relay. Monitoring relays from Carlo Gavazzi can also be used as 1-phase or 3- phase over current monitoring relays when connected with MI or MP current transf...
Carlo Gavazzi
PUA01CB23500V
from £ 66.83*
per piece
 
 piece
Omron Dual-Channel Emergency Stop, Light Beam/Curtain, Safety Switch/Interlock Safety Relay, 24V dc, 2 Safety Contacts / 8603770 (3 offers) 
Omron G9SR Configurable Safety Relay. The three models of the Omron G9SR safety relays cover virtually all common control system safety requirements in standalone applications. They feature front-p...
Omron
G9SR-AD201-RC
from £ 143.85*
per piece
 
 piece
Crouzet Voltage Monitoring Relay, 3 Phase, SPDT, 183 → 528V ac, DIN Rail / 262126 (1 offer) 
M3U/H3U series three-phase voltage control relays. H3US and M3US relays control three-phase networks: Overvoltage between phases and undervoltage between phases. The H3USN relay controls three-phas...
Crouzet
84873222
from £ 117.068*
per piece
 
 piece
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