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  Monitoring Relays (1,267 items)

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Siemens 5TT3423 auxiliary contact (2 offers) 
Siemens 5TT3423
Siemens
5TT3423
from £ 67.82*
per piece
 
 piece
Siemens 5TT3421 circuit breaker (2 offers) 
Siemens 5TT3421
Siemens
5TT3421
from £ 72.92*
per piece
 
 piece
Siemens 5TT3415 electrical relay (2 offers) 
Siemens 5TT3415
Siemens
5TT3415
from £ 107.77*
per piece
 
 piece
Siemens 5TT3402 electrical relay (1 offer) 
Siemens 5TT3402
Siemens
5TT3402
from £ 121.72*
per piece
 
 piece
Siemens 5TT3400 electrical relay (1 offer) 
Siemens 5TT3400
Siemens
5TT3400
from £ 94.14*
per piece
 
 piece
Siemens 5TT3170 auxiliary contact (2 offers) 
Siemens 5TT3170
Siemens
5TT3170
from £ 103.25*
per piece
 
 piece
Siemens 5SV8111-4KK circuit breaker (2 offers) 
Siemens 5SV8111-4KK
Siemens
5SV8111-4KK
from £ 943.44*
per piece
 
 piece
Siemens
3UG4651-1AW30
from £ 158.84*
per piece
 
 piece
Siemens 3UG46331AL30 electrical relay (2 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 £ 91.25*
per piece
 
 piece
Siemens
3UG4622-2AA30
from £ 99.77*
per piece
 
 piece
Siemens
3UG4621-1AW30
from £ 102.23*
per piece
 
 piece
Siemens 3UG45131BR20 electrical relay Grey 3 (2 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 £ 94.97*
per piece
 
 piece
Siemens
3UG4512-1BR20
from £ 82.37*
per piece
 
 piece
Siemens
3UG45112BQ20
from £ 75.18*
per piece
 
 piece
Siemens
3UG45111BP20
from £ 75.89*
per piece
 
 piece
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* Prices with asterisk are net prices excl. statutory VAT.
Our offer is only aimed at companies, public institutions and freelancers.