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  MCBs (3,221 items)

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Siemens SENTRON 5SP4 MCB, 3P, 100A Curve D / 2164054 (1 offer) 
The miniature circuit breaker provides voltage of 400 V with 3-pole configuration. In the event of an overload or short-circuit, circuit breakers safely cut off the connected circuit and reliably p...
Siemens
5SP4391-8
from £ 374.65*
per piece
Siemens SENTRON 5SP4 MCB, 3P, 125A Curve B, 400V AC / 2103395 (1 offer) 
The Siemens 5S series Miniature Circuit Breaker is used as a fuse for short-circuit protection. Siemens offers a comprehensive portfolio of protection, switching, measuring and monitoring devices, ...
Siemens
5SP4392-6
from £ 234.28*
per piece
Siemens SENTRON 5SP4 MCB, 3P, 125A Curve C, 400V AC / 2131068 (1 offer) 
The Siemens 5SP4392-7 Miniature Circuit Breakers operate at 440 V and 125 A, at AC. It has switching capacity of 10 kA. These provide high functionality and are ideal for application areas with str...
Siemens
5SP4392-7
from £ 257.73*
per piece
Siemens SENTRON 5SP4 MCB, 3P, 80A Curve B, 400V AC / 2103393 (1 offer) 
The Siemens 5S series Miniature Circuit Breaker is used as a fuse for short-circuit protection. Siemens offers a comprehensive portfolio of protection, switching, measuring and monitoring devices, ...
Siemens
5SP4380-6
from £ 183.38*
per piece
Siemens SENTRON 5SP4 MCB, 4P, 100A Curve B, 400V AC / 2103396 (1 offer) 
The Siemens 5S series Miniature Circuit Breaker is used as a fuse for short-circuit protection. Siemens offers a comprehensive portfolio of protection, switching, measuring and monitoring devices, ...
Siemens
5SP4491-6
from £ 324.56*
per piece
Siemens SENTRON 5SP4 MCB, 4P, 100A Curve C, 400V AC / 2128822 (1 offer) 
The miniature circuit breaker provides voltage of 400 V with 4-pole configuration. In the event of an overload or short-circuit, circuit breakers safely cut off the connected circuit and reliably p...
Siemens
5SP4491-7
from £ 392.02*
per piece
Siemens SENTRON 5SP4 MCB, 4P, 100A Curve D, 400V AC, 10 kA Breaking Capacity / 2096565 (1 offer) 
The miniature circuit breaker provides voltage of 400 V with 4-pole configuration. In the event of an overload or short-circuit, circuit breakers safely cut off the connected circuit and reliably p...
Siemens
5SP4491-8
from £ 404.99*
per piece
Siemens SENTRON 5SP4 MCB, 4P, 125A Curve B, 400V AC / 2097507 (1 offer) 
The Siemens 5SP4 series four-pole miniature circuit breaker has a current rating of 125 A and 10 kA breaking capacity. The miniature circuit breaker is the fuse for short-circuit protection. Siemen...
Siemens
5SP4492-6
from £ 520.39*
per piece
Siemens SENTRON 5SP4 MCB, 4P, 125A Curve C, 400V AC / 2131069 (1 offer) 
The Siemens 5SP4492-7 Miniature Circuit Breakers operate at 440 V and 125 A, at AC. It has switching capacity of 10 kA. These provide high functionality and are ideal for application areas with str...
Siemens
5SP4492-7
from £ 520.39*
per piece
Siemens SENTRON 5SP4 MCB, 4P, 80A Curve B, 400V AC / 2097506 (1 offer) 
The Siemens 5SP4 series four-pole miniature circuit breaker has a current rating of 80 A and 10 kA breaking capacity. The miniature circuit breaker is the fuse for short-circuit protection. Siemens...
Siemens
5SP4480-6
from £ 266.18*
per piece
Siemens SENTRON 5SP4 MCB, 4P, 80A Curve C, 400V AC / 2096660 (1 offer) 
The Siemens SENTRON series miniature circuit breaker has a four pole and has a current breaking capacity of 10kA. In the event of an overload or short-circuit this miniature circuit breakers safely...
Siemens
5SP4480-7
from £ 354.33*
per piece
Siemens SENTRON 5SP4 MCB, 4P, 80A Curve D, 400V AC, 10 kA Breaking Capacity / 2096563 (1 offer) 
The miniature circuit breaker provides voltage of 400 V with 4-pole configuration. In the event of an overload or short-circuit, circuit breakers safely cut off the connected circuit and reliably p...
Siemens
5SP4480-8
from £ 359.00*
per piece
Siemens 5ST3042 circuit breaker (2 offers)
Siemens
5ST3042
from £ 109.87*
per piece
Siemens 5ST3044 circuit breaker (1 offer)
Siemens
5ST3044
from £ 84.41*
per piece
Siemens SENTRON 5ST3 MCB, 80A / 2103398 (1 offer) 
The Siemens Series connector, 16 mm2, 200 mm, 1P For NF distributor black Additional components for residual current protective devices and miniature circuit breakers from Siemens. The additional c...
Siemens
5ST3791-2
from £ 7.19*
per piece
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* Prices with asterisk are net prices excl. statutory VAT.
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