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  Phase unbalance relay  (1,144 offers of 5,557,236 product items)

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ABB PSTX300-600-70 electrical relay (1 offer) 
The softstarter PSTX300-600-70 has a rated maximum operational current of 300 A with an operating voltage span from 208...600 V AC. The rated control voltage is between 100...250 V AC at 50/60 Hz. ...
ABB
1SFA898114R7000
from £ 3,168.496*
per piece
 
 piece
Meter: power quality analyser; on panel; digital,mounting; ND45 (1 offer) 
Manufacturer: LUMEL Mounting: on panel Rated voltage: 100V;57.7V Input: Pt 100/Pt1000 x2 Output: relay x8 Operating temperature: 0...50°C Kind of display used: LCD TFT 5,6" IP rating: IP65 (from th...
LUMEL
ND45 1110M000
£ 1,020.28*
per piece
 
 piece
ABB CM-ESS.2S electrical relay (2 offers) 
The CM-ESS.2S is a single-functional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 110 - 130 V AC and has a...
ABB
1SVR730831R0400
from £ 86.54*
per piece
 
 piece
Phoenix Contact 2866064 electrical relay Green (3 offers) 
Monitoring relay for monitoring 3-phase voltages of 280...520 V AC, undervoltage, window, phase sequence, phase failure, asymmetry, wide-range power supply unit, 2 PDTs
Phoenix Contact
2866064
from £ 153.606*
per piece
 
 piece
ABB Current Monitoring Relay, 1 Phase, DPDT, DIN Rail / 7757996 (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-phas...
ABB
1SVR730841R0400 CM-SRS.21S
from £ 87.43*
per piece
 
 piece
OMRON INDUSTRIAL AUTOMATION K8AKPW1 RELAY, PHASE MONITORING, SPDT, 240VAC (2 offers) 
Contact Configuration SPDT Product Range K8AK Supply Voltage Max 240 VAC Relay Mounting DIN Rail Phase Type 3 Phase Power Consumption - Relay Terminals Screw Switching Voltage Max - Phase Monitorin...
Omron
K8AKPW1
from £ 91.17*
per piece
 
 piece
Raritan PX3TS-1875R power distribution unit (PDU) 9 AC outlet(s) 1U Black (1 offer) 
Rack Transfer Switches Engineered for True Reliability Raritan's hybrid rack transfer switch system is the first in the world to offer both electromechanical relays and silicon-controlled rectifier...
Raritan
PX3TS-1875R
from £ 1,838.73*
per piece
 
 piece
ABB CM-ESS.2S electrical relay (2 offers) 
The CM-ESS.2S is a single-functional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 24 - 240 V AC / DC and h...
ABB
1SVR730830R0400
from £ 89.61*
per piece
 
 piece
Phoenix Contact 2885773 electrical relay Green (1 offer) 
Monitoring relay for monitoring 3-phase voltages of 160 ... 300 V AC, undervoltage, window, phase sequence, phase failure, asymmetry, wide-range power supply unit, 2 PDTs
Phoenix Contact
2885773
£ 155.92*
per piece
 
 piece
ABB Current Monitoring Relay, 1 Phase, DPDT, DIN Rail / 7757983 (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-phas...
ABB
1SVR730840R0500 CM-SRS.22S
from £ 88.71*
per piece
 
 piece
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
from £ 27.59*
per piece
 
 piece
Lovato Current Monitoring Relay, 1, 3 Phase, SPDT, DIN Rail / 9160198 (2 offers) 
Current Monitoring Relay Pump Protection Single and Three Phase. The Lovato range of current monitoring pump protection relays, protect against any dry running with auxiliary AC power supply includ...
LOVATO Electric
PMA50A415
from £ 128.30*
per piece
 
 piece
ABB CM-ESS.2S electrical relay (2 offers) 
The CM-ESS.2S is a single-functional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 220 - 240 V AC and has a...
ABB
1SVR730831R1400
from £ 75.88*
per piece
 
 piece
Phoenix Contact 2903526 electrical relay Grey (2 offers) 
Monitoring relay for monitoring 3-phase voltages of 400 V AC ±30%, window or window with phase sequence, 1 PDT, with push-in connection
Phoenix Contact
2903526
from £ 93.493*
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-phas...
ABB
1SVR730841R0500 CM-SRS.22S
from £ 87.43*
per piece
 
 piece
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