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  Monitoring Relays (822 items)

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Siemens 5TT3423 auxiliary contact (2 offers) 
Siemens 5TT3423
Siemens
5TT3423
from £ 64.88*
per piece
 
 piece
Omron Level Monitoring Relay, 3 Phase, SPST, DIN Rail / 1113125 (3 offers) 
K8DT-LS Conductive Level Controller. Omron K8DT-LS conductive level controllers are Ideal for water level control. Offering sensitivity adjustment and an ON-delay timer that is ideal as a counterme...
Omron
K8DT-LS1TA
from £ 65.18*
per piece
 
 piece
Siemens Phase Monitoring Relay, 3 Phase, SPDT, 160 → 690V ac, DIN Rail / 7586924 (3 offers) 
Monitoring Application = Phase Electrical Phase = 3 Voltage Sensing Range = 160 → 690V ac Mounting Type = DIN Rail Phase Sensitivity = Phase Failure, Phase Sequence Series = 3UG4 Minimum Operating ...
Siemens
3UG4512-1AR20
from £ 65.30*
per piece
 
 piece
Finder Voltage Monitoring Relay, 3 Phase, SPDT, 300 → 480V ac / 7892746 (2 offers) 
70 Series. Electronic voltage/phase loss and rotation monitoring relays for single and three-phase applications. 70.11 - 70.31 - 70.41 Series - Electronic voltage monitoring relays for single and t...
Finder
70.41.8.400.2030
from £ 65.49*
per piece
 
 piece
Siemens Voltage Monitoring Relay, SPDT, DIN Rail / 2103508 (2 offers) 
The Siemens Analog monitoring relay used for fill level monitoring, resistance monitoring from 2 to 200 kohm, overshoot and undershoot. It has supply voltage 24 V AC/DC without galvanic isolation t...
Siemens
3UG4501-1AA30
from £ 65.78*
per piece
 
 piece
Siemens Thermistor Motor Protection Monitoring Relay, DPDT, 24 → 240V ac/dc, DIN Rail / 1752284 (2 offers) 
Siemens Thermistor Motor Protection RelayThe Siemens thermistor motor protection relay is a reliable over temperature protection device that saves motors from overloading. The relay has a mechanism...
Siemens
3RN2011-2BW30
from £ 66.46*
per piece
 
 piece
Siemens Thermistor Motor Protection Monitoring Relay, DPDT, 24 → 240V ac/dc, DIN Rail / 1752282 (2 offers) 
Thermistor motor protection relay Standard evaluation unit 22.5 mm enclosure screw terminal 2 change-over contacts US = 24 V-240 V AC/DC Manul/Remote-Reset with ATEX approval 2 LEDs (READY/TRIPPED)...
Siemens
3RN2011-1BW30
from £ 66.48*
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 £ 66.96*
per piece
 
 piece
Siemens Phase Monitoring Relay, DPDT / 2565426 (2 offers) 
Monitoring Application = Phase Contact Configuration = DPDT
Siemens
3UG4511-1BN20
from £ 66.98*
per piece
 
 piece
Siemens Phase Monitoring Relay, 3 Phase, DPDT / 2163338 (2 offers) 
The Siemens 3UG series is a Analog monitoring relay. The monitoring function is of phase monitoring. Withh 2 change-over contacts screw terminal connection system.It has a protection class rating o...
Siemens
3UG4511-1BQ20
from £ 67.02*
per piece
 
 piece
Carlo Gavazzi Current, Voltage Monitoring Relay, 1 Phase, SPDT, 0.4 → 4 V ac, 2 → 20V ac/dc, DIN Rail / 8577167 (2 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
DUA01CB23500V
from £ 67.26*
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 £ 67.50*
per piece
 
 piece
Schneider Electric Level Monitoring Relay, SPDT, DIN Rail / 146020 (2 offers) 
NF EN 60255-6 and IEC 60255-6. UL, CSA, GL, C-Tick, GOST. Level control relays RM35 L. The level control relays RM35 LM33MW and RM35 LV14MW control one or two levels, filling or draining function: ...
Schneider Electric
RM35LV14MW
from £ 67.65*
per piece
 
 piece
Tele Phase, Voltage Monitoring Relay, 1, 3 Phase, DPDT, DIN Rail / 1829994 (1 offer) 
Voltage monitoring 1- or 3-phase, Multifunction, monitoring of over- and under-voltage, monitoring of phase sequence selectable, 2 CO, Adjustable delayMonitoring relays - ENYA series Multifunction ...
Tele
E3YM230VS20
from £ 67.806*
per piece
 
 piece
Schneider Electric Phase Monitoring Relay, 3 Phase, DPDT, <100V ac, DIN Rail / 1799433 (1 offer) 
Schneider Electric Control Relay - RM22TG20 Created and designed to provide you with reliable information on how your system is performing. Using a relay enables you to monitor and detect power los...
Schneider Electric
RM22TG20
£ 67.885*
per piece
 
 piece
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