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  MCBs (5,075 items)

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Siemens SENTRON 5SY4 MCB, 3P+N, 20A Curve D, 400V AC, 72V DC, 5 kA Breaking Capacity / 2128849 (2 offers) 
The miniature circuit breaker provides voltage of 400 V with 3+N-pole configuration. In the event of an overload or short-circuit, circuit breakers safely cut off the connected circuit and reliably...
Siemens
5SY4620-8
from £ 72.65*
per piece
Siemens SENTRON 5SY4 MCB, 3P+N, 25A Curve B, 400V AC, 72V DC, 5 kA Breaking Capacity / 2103405 (2 offers) 
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
5SY4625-6
from £ 39.91*
per piece
Siemens SENTRON 5SY4 MCB, 3P+N, 25A Curve C, 400V AC, 72V DC, 5 kA Breaking Capacity / 2096668 (2 offers) 
The Siemens SENTRON series miniature circuit breaker has a 3P+N pole and has a current breaking capacity of 10kA. In the event of an overload or short-circuit this miniature circuit breakers safely...
Siemens
5SY4625-7
from £ 51.03*
per piece
Siemens SENTRON 5SY4 MCB, 3P+N, 25A Curve D, 400V AC, 72V DC, 10 kA Breaking Capacity / 2096606 (2 offers) 
The miniature circuit breaker provides voltage of 400 V with 3+N-pole configuration. In the event of an overload or short-circuit, circuit breakers safely cut off the connected circuit and reliably...
Siemens
5SY4625-8
from £ 72.72*
per piece
Siemens SENTRON 5SY4 MCB, 3P+N, 32A Curve B, 400V AC, 72V DC, 5 kA Breaking Capacity / 2129012 (2 offers) 
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
5SY4632-6
from £ 47.55*
per piece
Siemens SENTRON 5SY4 MCB, 3P+N, 32A Curve C, 400V AC, 72V DC, 5 kA Breaking Capacity / 2096669 (2 offers) 
The Siemens SENTRON series miniature circuit breaker has a 3P+N pole and has a current breaking capacity of 10kA. In the event of an overload or short-circuit this miniature circuit breakers safely...
Siemens
5SY4632-7
from £ 59.30*
per piece
Siemens SENTRON 5SY4 MCB, 3P+N, 32A Curve D, 400V AC, 72V DC, 10 kA Breaking Capacity / 2096607 (2 offers) 
The miniature circuit breaker provides voltage of 400 V with 3+N-pole configuration. In the event of an overload or short-circuit, circuit breakers safely cut off the connected circuit and reliably...
Siemens
5SY4632-8
from £ 86.57*
per piece
Siemens SENTRON 5SY4 MCB, 3P+N, 40A Curve B, 400V AC, 72V DC, 5 kA Breaking Capacity / 2128955 (2 offers) 
The Siemens 5SY4 series 3+N-pole miniature circuit breaker has a current rating of 40 A and 10 kA breaking capacity. The miniature circuit breaker is the fuse for short-circuit protection. Siemens ...
Siemens
5SY4640-6
from £ 59.81*
per piece
Siemens SENTRON 5SY4 MCB, 3P+N, 40A Curve C, 400V AC, 72V DC, 5 kA Breaking Capacity / 2096670 (2 offers) 
The Siemens SENTRON series miniature circuit breaker has a 3P+N pole and has a current breaking capacity of 10kA. In the event of an overload or short-circuit this miniature circuit breakers safely...
Siemens
5SY4640-7
from £ 74.51*
per piece
Siemens SENTRON 5SY4 MCB, 3P+N, 40A Curve D, 400V AC, 72V DC, 5 kA Breaking Capacity / 2128850 (2 offers) 
The miniature circuit breaker provides voltage of 400 V with 3+N-pole configuration. In the event of an overload or short-circuit, circuit breakers safely cut off the connected circuit and reliably...
Siemens
5SY4640-8
from £ 105.13*
per piece
Siemens SENTRON 5SY4 MCB, 3P+N, 50A Curve B, 400V AC, 72V DC, 5 kA Breaking Capacity / 2129013 (2 offers) 
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
5SY4650-6
from £ 73.73*
per piece
Siemens SENTRON 5SY4 MCB, 3P+N, 50A Curve C, 400V AC, 72V DC, 5 kA Breaking Capacity / 2097518 (2 offers) 
The Siemens 5SY4 series 3+N-pole miniature circuit breaker has a current rating of 50 A and 10 kA breaking capacity. The miniature circuit breaker is the fuse for short-circuit protection. Siemens ...
Siemens
5SY4650-7
from £ 89.73*
per piece
Siemens SENTRON 5SY4 MCB, 3P+N, 50A Curve D, 400V AC, 72V DC, 5 kA Breaking Capacity / 2128851 (2 offers) 
The miniature circuit breaker provides voltage of 400 V with 3+N-pole configuration. In the event of an overload or short-circuit, circuit breakers safely cut off the connected circuit and reliably...
Siemens
5SY4650-8
from £ 125.33*
per piece
Siemens SENTRON 5SY4 MCB, 3P+N, 63A Curve B / 2166018 (2 offers) 
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
5SY4663-6
from £ 84.43*
per piece
Siemens SENTRON 5SY MCB, 3P+N, 63A Curve C / 2322307 (2 offers) 
Number of Poles = 3P+N Current Rating = 63A Tripping Characteristics = Type C Range = SENTRON Series = 5SY Mounting Style = DIN Rail Mount Better World Product = Yes
Siemens
5SY4663-7
from £ 104.51*
per piece
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* Prices with asterisk are net prices excl. statutory VAT.
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