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  Monitoring Relays (1,263 items)

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Siemens 5TT3421 circuit breaker (2 offers) 
Siemens 5TT3421
Siemens
5TT3421
from £ 68.55*
per piece
 
 piece
Siemens 5TT3415 electrical relay (2 offers) 
Siemens 5TT3415
Siemens
5TT3415
from £ 98.595*
per piece
 
 piece
Siemens 5TT3402 electrical relay (2 offers) 
Siemens 5TT3402
Siemens
5TT3402
from £ 115.11*
per piece
 
 piece
Siemens 5TT3400 electrical relay (2 offers) 
Siemens 5TT3400
Siemens
5TT3400
from £ 88.45*
per piece
 
 piece
Siemens 5TT3170 auxiliary contact (2 offers) 
Siemens 5TT3170
Siemens
5TT3170
from £ 97.93*
per piece
 
 piece
Siemens 5SV8111-4KK circuit breaker (2 offers) 
Siemens 5SV8111-4KK
Siemens
5SV8111-4KK
from £ 899.34*
per piece
 
 piece
Siemens
3UG4651-1AW30
from £ 151.95*
per piece
 
 piece
Siemens 3UG46331AL30 electrical relay (4 offers) 
Digital monitoring relay Voltage monitoring, 22.5 mm from 17-275 V AC/DC Overshoot and undershoot Self-powered Spike delay 0.1 to 20 s Hysteresis 0.1 to 150 V 1 CO contact With or without error buf...
Siemens
3UG46331AL30
from £ 86.35*
per piece
 
 piece
Siemens
3UG4622-2AA30
from £ 94.50*
per piece
 
 piece
Siemens
3UG4621-1AW30
from £ 97.66*
per piece
 
 piece
Siemens 3UG45131BR20 electrical relay Grey 3 (4 offers) 
Analog monitoring relay Phase failure and sequence Adjustable undervoltage Asymmetry 20% fixed 3 x 160 to 690 V 50 to 60 Hz AC Hysteresis 5% fixed Delay time 0-20 s 2 change-over contacts screw ter...
Siemens
3UG45131BR20
from £ 89.95*
per piece
 
 piece
Siemens
3UG4512-1BR20
from £ 78.51*
per piece
 
 piece
Siemens
3UG45112BQ20
from £ 70.02*
per piece
 
 piece
Siemens
3UG45111BP20
from £ 71.90*
per piece
 
 piece
Sensor for fluid level controllers; Thread: 3/8"; 700mm (1 offer) 
Manufacturer: LOVATO ELECTRIC Operating temperature: max. 180°C Body material: stainless steel Length: 0.7m Thread: 3/8" Sensors features: single pole probe Type of control accessories: sensor for ...
LOVATO Electric
31CGL1257
from £ 73.32*
per piece
 
 piece
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