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  Monitoring relays  (1,167 offers of 6,201,055 product items)

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Omron Phase Monitoring Relay, 3 Phase, SPDT, DIN Rail / 2157855 (4 offers) 
The Omron K8DS-PH series are phase-sequence phase-loss relay, using voltage detection method. Distinguishes between correct phases, phase sequence, and phase loss when power is turned ON. Its Outpu...
Omron
K8DSPH1
£ 34.82*
per piece
 
 piece
Entes GKRC-02F Voltage Monitoring Relay SPDT-CO 8A (1 offer) 
Voltage monitoring relay for the protection of three-phase networks against power fluctuations and incorrect phase sequence. Faulty alarm responses due to voltage spikes are prevented by a switchin...
ENTES Elektronik
101532
£ 58.88*
per piece
 
 piece
ABB Current Monitoring Relay, 1 Phase, DPDT, DIN Rail / 7757980 (2 offers) 
CM-SRS Current Monitoring, Single Phase AC/DC. Depending on the configuration, the current monitoring relays CM-SRS.1 and CM-SRS.2 can be used for over- or undercurrent monitoring in single-phase A...
ABB
1SVR730840R0700 CM-SRS.M2S
£ 114.77*
per piece
 
 piece
Omron Voltage Monitoring Relay, 1 Phase, SPDT, 20 → 200V ac/dc / 8193295 (3 offers) 
Omron K8AK-VS/VW Monitoring Relays. Manual resetting and automatically resetting supported by one relay Pre-alarm monitoring mode Compact housings Resistant to high-frequency noise Compliance with ...
Omron
K8AK-VS3 100-240VAC
£ 110.81*
per piece
 
 piece
Power factor monitoring relay; power factor cosφ; 230VAC; COS-2 (1 offer) 
Manufacturer: ELKO EP Mounting: for DIN rail mounting Operating temperature: -20...55°C Kind of output 1: SPDT x2 Current rating: 0.1...16A IP rating: IP20 Supply voltage: 230V AC Leads: screw term...
ELKO EP
COS-2/230V
£ 84.41*
per piece
 
 piece
Entes GKRC-20F Voltage Monitoring Relay SPDT-CO 8A (1 offer) 
Voltage monitoring relay for the protection of one-phase and three-phase networks against power fluctuations and incorrect phase sequence. Faulty alarm responses due to voltage spikes are prevented...
ENTES Elektronik
101535
£ 86.41*
per piece
 
 piece
ABB Current Monitoring Relay, 1 Phase, DPDT, DIN Rail / 7758009 (2 offers) 
CM-SRS Current Monitoring, Single Phase AC/DC. Depending on the configuration, the current monitoring relays CM-SRS.1 and CM-SRS.2 can be used for over- or undercurrent monitoring in single-phase A...
ABB
1SVR730841R0500 CM-SRS.22S
£ 92.13*
per piece
 
 piece
Voltage monitoring relay; for DIN rail mounting; Zelio Control (5 offers) 
Manufacturer: SCHNEIDER ELECTRIC Mounting: for DIN rail mounting Operating temperature: -20...50°C Kind of output 1: relay NO / NC Power supply: from tested wiring system IP rating: IP30 Leads: scr...
Schneider Electric
RM17TG00
£ 69.37*
per piece
 
 piece
Omron Voltage Monitoring Relay, 1 Phase, SPDT, 200 V, 300 V, 600 V, DIN Rail / 1113111 (3 offers) 
K8DT-VS Single Phase Under/Over Voltage Relay. Omron K8DT-VS single phase voltage monitor relay detects abnormal voltages applies to equipment to protect against equipment failure. Can be used in e...
Omron
K8DT-VS3CA
£ 109.54*
per piece
 
 piece
Finder Voltage Monitoring Relay, 3 Phase, SPDT, 300 → 480V ac / 7892746 (4 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
£ 82.47*
per piece
 
 piece
ABB Current Monitoring Relay, 1 Phase, DPDT, DIN Rail / 7758037 (3 offers) 
CM-SRS Current Monitoring, Single Phase AC/DC. Depending on the configuration, the current monitoring relays CM-SRS.1 and CM-SRS.2 can be used for over- or undercurrent monitoring in single-phase A...
ABB
1SVR740840R0400 CM-SRS.21P
£ 109.51*
per piece
 
 piece
Omron Voltage Monitoring Relay, 1 Phase, SPDT, 1 → 10V ac/dc / 8193292 (3 offers) 
Omron K8AK-VS/VW Monitoring Relays. Manual resetting and automatically resetting supported by one relay Pre-alarm monitoring mode Compact housings Resistant to high-frequency noise Compliance with ...
Omron
K8AK-VW2 100-240VAC
£ 101.39*
per piece
 
 piece
Schneider Electric Voltage Monitoring Relay, DPDT, 1 → 100 V, DIN Rail / 146143 (2 offers) 
Monitoring Application = Voltage Voltage Sensing Range = 1 → 100 V Voltage Sensitivity = Overvoltage, Undervoltage Mounting Type = DIN Rail Time Delay = 0.3 → 30s Series = Harmony Control Better Wo...
Schneider Electric
RM35UA12MW
£ 100.79*
per piece
 
 piece
ABB Current Monitoring Relay, 1 Phase, DPDT, DIN Rail / 7757983 (3 offers) 
Monitoring Application = Current Electrical Phase = 1 Contact Configuration = DPDT Mounting Type = DIN Rail Minimum Current Sensed = 0.3 A, 1 A, 3A Maximum Current Sensed = 1.5 A, 5 A, 15A Current ...
ABB
1SVR730840R0500 CM-SRS.22S
£ 92.29*
per piece
 
 piece
Voltage monitoring relay; 230/400VAC; for DIN rail mounting (1 offer) 
Manufacturer: ZAMEL Mounting: for DIN rail mounting Operating temperature: -20...60°C Kind of output 1: SPDT Power supply: from tested wiring system IP rating: IP20 Supply voltage: 230/400V AC Lead...
ZAMEL
PNM-31
£ 58.84*
per piece
 
 piece
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