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  Monitoring Relays (822 items)

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Carlo Gavazzi Voltage Monitoring Relay, SPDT, 8 → 28V dc, DIN Rail / 8593027 (3 offers) 
DUA52 DC Under Voltage Relays. Carlo Gavazzi DUA52 series DC under voltage monitoring relay that measure its own power supply. The DUA52 can monitor two separate measuring ranges of 8-28 V dc and 3...
Carlo Gavazzi
DUA52C724
from £ 57.05*
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
Crouzet Current Monitoring Relay, 1 Phase, SPDT, DIN Rail / 4633402 (2 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
84871030
from £ 129.99*
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 £ 127.93*
per piece
 
 piece
Crouzet Current Monitoring Relay, 3 Phase, DPDT, DIN Rail / 6149375 (2 offers) 
HI series current control relay. Alternating and direct current control. Automatic AC / DC recognition. Measurement ranges from 2 mA → 10 A. Choice between over- and under-current. Measurement in t...
Crouzet
84871120
from £ 106.44*
per piece
 
 piece
Crouzet Current Monitoring Relay, 3 Phase, DPDT, DIN Rail / 6149397 (2 offers) 
HI series current control relay. Alternating and direct current control. Automatic AC / DC recognition. Measurement ranges from 2 mA → 10 A. Choice between over- and under-current. Measurement in t...
Crouzet
84871130
from £ 103.47*
per piece
 
 piece
Crouzet Current Monitoring Relay, SP-NO/NC, DIN Rail / 261959 (2 offers) 
MIC series current control relay. Alternating current control. Built-in current transformer. Measurement ranges from 2 A → 20 A. Choice of output relay action. Measurement in true RMS.
Crouzet
84871122
from £ 87.37*
per piece
 
 piece
Crouzet Current Monitoring Relay, SPDT, DIN Rail / 4633418 (2 offers) 
all'interno dell'unità, il polo negativo dell'alimentazione ausiliaria e quello del circuito di misura sono collegati tra loro. Per il funzionamento del relè per il controllo di corrente modello EI...
Crouzet
84871033
from £ 141.08*
per piece
 
 piece
Crouzet Frequency Monitoring Relay, DP-NO/NC, DIN Rail / 261971 (2 offers) 
Frequency Control Relay - C-Lynx. The HHZ control relay controls frequency variations on 50 Hz or 60 Hz networks. This HSV frequency monitoring relay from Crouzet has been designed to control its o...
Crouzet
84872501
from £ 158.18*
per piece
 
 piece
Crouzet Level Monitoring Relay, DPDT, 24 → 240V ac, DIN Rail / 6149347 (2 offers) 
This is the first conductivity unit to have a DC power option. Level Control Relay - HNM. For controlling the filling or emptying level of conductive liquids 0.1 to 5 sec adjustable time delay (ant...
Crouzet
84870700
from £ 67.78*
per piece
 
 piece
Crouzet Level Monitoring Relay, SPDT, DIN Rail / 8377496 (2 offers) 
Probes supplied with AC current. Crouzet ENR Level Control relay. Premium level control relay which provides the user with a versatile solution to ensure your application is covered. Suitable for u...
Crouzet
84870200
from £ 56.58*
per piece
 
 piece
Crouzet Phase Monitoring Relay, 3 Phase, DPDT, DIN Rail / 261909 (2 offers) 
Single Function Phase Control Relay - C-Lynx. 3 phase network control relay protects motors and equipment from expensive damage due to voltage faults on 3 phase systems. It monitors the sequence of...
Crouzet
84873021
from £ 80.844*
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 £ 143.00*
per piece
 
 piece
Crouzet Phase, Voltage Monitoring Relay, 3 Phase, SPDT, 183 → 528V ac, DIN Rail / 261915 (2 offers) 
Multi Function Phase Control Relays 17.5mm - C-Lynx. 3 phase network control relays monitor: the correct sequence of phases L1, L2, L3, the total phase failure - Undervoltage and overvoltage from 2...
Crouzet
84873022
from £ 74.91*
per piece
 
 piece
Crouzet Phase, Voltage Monitoring Relay, 3 Phase, SPDT, 183 → 528V ac, DIN Rail / 262025 (2 offers) 
Multi Function Phase Control Relays 17.5mm - C-Lynx. 3 phase network control relays monitor: the correct sequence of phases L1, L2, L3, the total phase failure - Undervoltage and overvoltage from 2...
Crouzet
84873025
from £ 108.39*
per piece
 
 piece
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