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  Monitoring relays  (1,030 offers of 5,352,882 product items)

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Siemens 5TT3402 electrical relay (2 offers) 
Siemens 5TT3402
Siemens
5TT3402
from £ 115.34*
per piece
 
 piece
Siemens 5TT3423 auxiliary contact (2 offers) 
Siemens 5TT3423
Siemens
5TT3423
from £ 64.55*
per piece
 
 piece
Module: voltage monitoring relay; for DIN rail mounting; SPDT (1 offer) 
Manufacturer: F&F Mounting: for DIN rail mounting Operating temperature: -25...40°C Kind of output 1: SPDT Kind of output 2: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: scre...
F&F
CZF-331-TRMS
from £ 27.40*
per piece
 
 piece
Siemens Current Monitoring Relay, 3 Phase, SPDT / 2131222 (1 offer) 
The Siemens 3RR2241-1FW30 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
3RR2241-1FW30
£ 178.478*
per piece
 
 piece
Module: voltage monitoring relay; for DIN rail mounting; SPST (1 offer) 
Manufacturer: DOBRY CZAS Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: SPST Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Type...
DOBRY CZAS
MMR17-PDE-A230-108
from £ 15.27*
per piece
 
 piece
Siemens 5TT3401 electrical relay (1 offer) 
Siemens 5TT3401
Siemens
5TT3401
£ 147.619*
per piece
 
 piece
Siemens Voltage Monitoring Relay, 1 Phase, SPDT / 2131313 (1 offer) 
The Siemens 3UG series is a digital monitoring relay. The monitoring function is of phase monitoring. Withh 1 change-over contacts screw terminal connection system.It has a protection class rating ...
Siemens
3UG4631-1AA30
£ 125.988*
per piece
 
 piece
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
£ 201.446*
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
£ 4,456.872*
per piece
 
 piece
Module: voltage monitoring relay; for DIN rail mounting; SPDT (1 offer) 
Manufacturer: RELPOL Mounting: for DIN rail mounting Operating temperature: -20...60°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 Leads: screw terminals Body dim...
RELPOL
RPN-1VFR-A400
from £ 20.93*
per piece
 
 piece
Socomec Power Quality Analyser, 3-Phase, 1000V Max / 2533723 (1 offer) 
Number of Phases = 3 Maximum Voltage = 1000V Best Voltage Measurement Accuracy = ± 0.1 %
Socomec
48260100
£ 7,283.73*
per piece
 
 piece
Module: voltage monitoring relay; for DIN rail mounting; SPDT (1 offer) 
Manufacturer: LOVATO ELECTRIC Mounting: for DIN rail mounting Operating temperature: -20...60°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 at terminal side Leads...
LOVATO Electric
PMV70A240
from £ 129.96*
per piece
 
 piece
Tele Current Monitoring Relay, 1 Phase, DPDT, DIN Rail / 1239748 (1 offer) 
GAMMA Series Current Monitoring Relay. TELE GAMMA series AC/DC current monitoring for single phase. Featuring overcurrent and undercurrent monitoring and two change over contacts. The GAMMA series ...
Tele
G2IM10AL20 24-240VAC/DC
from £ 176.428*
per piece
 
 piece
Siemens Monitoring Relay, 3 Phase, DIN Rail / 2752205 (1 offer) 
Electrical Phase = 3 Mounting Type = DIN Rail
Siemens
7SR54303AA260AA0
£ 6,404.687*
per piece
 
 piece
Module: voltage monitoring relay; overvoltage,too low voltage (1 offer) 
Manufacturer: WEIDMÜLLER Mounting: for DIN rail mounting Operating temperature: -25...60°C Kind of output 1: DPDT Power supply: external IP rating: IP20 Supply voltage: 24...240V AC;24...240V DC Le...
Weidmüller
ACT20P-VMR-1PH-H
from £ 99.10*
per piece
 
 piece
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