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  Phase unbalance relay  (1,287 offers of 5,746,393 product items)

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Siemens 3RB Overload Relay 1NC + 1NO, 10 → 40 A F.L.C, 40 A Contact Rating, 3P, SIRIUS / 2162818 (1 offer) 
The Siemens SIRIUS 3RB series is a solid-state overload relay for inverse-time delayed protection of loads with normal and heavy starting against excessive temperature rises due to overload, phase ...
Siemens
3RB3123-4VB0
from £ 187.575*
per piece
 
 piece
Siemens 3RB Overload Relay 1NO + 1NC, 6 → 25 A F.L.C, 25 A Contact Rating, 11 kW, 3P, SIRIUS / 7060790 (1 offer) 
CE, UL, CSA. Solid State Overload Relay - 3RB range. 3RB30 and 3RB31 solid-state overload relays up to 80 A with internal power supply have been designed for current-sensitive protection of loads w...
Siemens
3RB3026-1QE0
from £ 88.02*
per piece
 
 piece
Schneider Electric TeSys GV2 Motor Protection Circuit Breaker / 2112303 (1 offer) 
The Schneider Electric TeSys GV2 motor circuit breakers provide compact, reliable and efficient solutions for isolation On-Off manual control of motors. These reliable and robust motor protection c...
Schneider Electric
GV2LE03
from £ 68.176*
per piece
 
 piece
Siemens 3RB Overload Relay 1NC + 1NO, 12.5 → 50 A F.L.C, 50 A Contact Rating, 3P, SIRIUS / 2113663 (1 offer) 
The Siemens SIRIUS 3RB series is a solid-state overload relay for inverse-time delayed protection of loads with normal and heavy starting against excessive temperature rises due to overload, phase ...
Siemens
3RB3133-4UD0
from £ 266.896*
per piece
 
 piece
Siemens 3RR Monitoring Relay, SIRIUS Innovation / 8751046 (1 offer) 
Monitoring Relay - 3RR range. SIRIUS 3RR21 and 3RR22 current monitoring relays are suitable for the load monitoring of motors or other loads. In 2 or 3 phases they monitor the rms value of AC curre...
Siemens
3RR2243-1FW30
from £ 256.988*
per piece
 
 piece
Siemens DC load Monitoring Relay, 3 Phase, DPST, DIN Rail / 1973312 (1 offer) 
The Siemens 3UG5 series is DC load monitoring relay for PROFINET. It is used for monitoring for violation of upper and lower limit of current, voltage and power, Energy consumption counter and ener...
Siemens
3UG5462-1AA40
£ 778.824*
per piece
 
 piece
Schneider Electric Voltage Monitoring Relay, 1 Phase, DPDT, 1 → 100V ac/dc, DIN Rail / 1240187 (3 offers) 
RM22-UA Voltage Control Relay. Schneider Electric Zelio RM22UA series single phase or DC voltage control relays. Automatic AC or DC recognition Selection between overvoltage and undervoltage Monito...
Schneider Electric
RM22UA32MR
from £ 111.809*
per piece
 
 piece
Siemens 3RB Overload Relay 1NC + 1NO, 25 A F.L.C, 25 A Contact Rating, 22 kW, 690 Vac, TP, SIRIUS / 2164360 (1 offer) 
The Siemens overload relay of current rating 6-25 A. It is used for motor protection size S00, class 10E and having contactor mounting. The main circuit has spring type terminal and auxiliary circu...
Siemens
3RB3123-4QE0
from £ 150.573*
per piece
 
 piece
Siemens 5SV8101-4KK circuit breaker (2 offers) 
Siemens 5SV8101-4KK
Siemens
5SV8101-4KK
from £ 939.71*
per piece
 
 piece
Siemens Monitoring Relay, 3 Phase, DIN Rail / 2752192 (1 offer) 
Electrical Phase = 3 Mounting Type = DIN Rail
Siemens
7SR51101AA210AA0
£ 2,432.614*
per piece
 
 piece
Schneider Electric Voltage Monitoring Relay, 1 Phase, DPDT, 80 → 300V ac/dc, DIN Rail / 1240190 (4 offers) 
RM22-UA Voltage Control Relay. Schneider Electric Zelio RM22UA series single phase or DC voltage control relays. Automatic AC or DC recognition Selection between overvoltage and undervoltage Monito...
Schneider Electric
RM22UB34
from £ 87.48*
per piece
 
 piece
Siemens 3RB Overload Relay 1NC + 1NO, 4 → 16 A F.L.C, 16 A Contact Rating, 3P, SIRIUS / 2113658 (1 offer) 
The Siemens SIRIUS 3RB series is a manual-automatic reset solid-state overload relay for inverse-time delayed protection of loads with normal and heavy starting against excessive temperature rises ...
Siemens
3RB3016-1TB0
from £ 76.453*
per piece
 
 piece
Siemens Current Monitoring Relay, 3 Phase, DPDT / 2565432 (2 offers) 
Monitoring Application = Current Electrical Phase = 3 Contact Configuration = DPDT
Siemens
3UG4625-2CW30
from £ 135.41*
per piece
 
 piece
Siemens Monitoring Relay, 3 Phase, DIN Rail / 2752196 (1 offer) 
Electrical Phase = 3 Mounting Type = DIN Rail
Siemens
7SR51107AA260AA0
£ 4,525.316*
per piece
 
 piece
Siemens 3RB Overload Relay 1NC + 1NO, 50 → 200 A F.L.C, 200 A Contact Rating, 3P, SIRIUS / 2113655 (1 offer) 
The Siemens SIRIUS 3RB series is a manual-automatic reset solid-state overload relay for inverse-time delayed protection of loads with normal and heavy starting against excessive temperature rises ...
Siemens
3RB2056-2FC2
from £ 214.687*
per piece
 
 piece
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