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  MCBs (3,221 items)

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Siemens SENTRON 5SY4 MCB, 1P, 4A, Type A, 10 kA Breaking Capacity / 2027061 (2 offers) 
The Siemens miniature circuit breaker are current limiting design provide the highest quality and reliability. It has a quick and easy installation. It has DIN rail assembly mounting type. Its used...
Siemens
5SY4104-5
from £ 16.96*
per piece
Siemens Sentron 5SY4 MCB, 1P, 500mA Curve C, 230V AC, 10 kA Breaking Capacity / 6220042 (2 offers) 
Automatic cut-out, 5SY4 Series, 10 kA, B, C and D characteristic. Miniature circuit breakers from Siemens, offer the highest quality and reliability. The excellent technical properties of the devic...
Siemens
5SY4105-7
from £ 12.07*
per piece
Siemens SENTRON 5SY4 MCB, 1P, 500mA Curve D, 400V AC, 72V DC, 5 kA Breaking Capacity / 2128823 (2 offers) 
The miniature circuit breaker provides voltage of 230/400 V with 1-pole configuration. In the event of an overload or short-circuit, circuit breakers safely cut off the connected circuit and reliab...
Siemens
5SY4105-8
from £ 17.77*
per piece
Siemens Sentron 5SY4 MCB, 1P, 50A Curve B, 230V AC, 10 kA Breaking Capacity / 1243155 (2 offers) 
Automatic cut-out, 5SY4 Series, 10 kA, B, C and D characteristic. Miniature circuit breakers from Siemens, offer the highest quality and reliability. The excellent technical properties of the devic...
Siemens
5SY4150-6
from £ 14.42*
per piece
Siemens Sentron 5SY4 MCB, 1P, 50A Curve C, 230V AC, 10 kA Breaking Capacity / 1243156 (2 offers) 
Automatic cut-out, 5SY4 Series, 10 kA, B, C and D characteristic. Miniature circuit breakers from Siemens, offer the highest quality and reliability. The excellent technical properties of the devic...
Siemens
5SY4150-7
from £ 17.99*
per piece
Siemens Sentron 5SY4 MCB, 1P, 50A Curve D, 230V AC, 10 kA Breaking Capacity / 1243157 (2 offers) 
Automatic cut-out, 5SY4 Series, 10 kA, B, C and D characteristic. Miniature circuit breakers from Siemens, offer the highest quality and reliability. The excellent technical properties of the devic...
Siemens
5SY4150-8
from £ 25.55*
per piece
Siemens SENTRON 5SY4 MCB, 1P, 5A Curve C, 400V AC, 72V DC, 5 kA Breaking Capacity / 2131070 (2 offers) 
The Siemens 5SY4111-7 Miniature Circuit Breakers operate at 72 V DC and 5A at AC. It has switching capacity of 10 kA according to EN 60898. These are ideal for application in large non-residential ...
Siemens
5SY4111-7
from £ 12.34*
per piece
Siemens Sentron 5SY4 MCB, 1P, 63A Curve B, 230V AC, 10 kA Breaking Capacity / 1243158 (3 offers) 
Automatic cut-out, 5SY4 Series, 10 kA, B, C and D characteristic. Miniature circuit breakers from Siemens, offer the highest quality and reliability. The excellent technical properties of the devic...
Siemens
5SY4163-6
from £ 16.78*
per piece
Siemens Sentron 5SY4 MCB, 1P, 63A Curve C, 230V AC, 10 kA Breaking Capacity / 1243159 (3 offers) 
Automatic cut-out, 5SY4 Series, 10 kA, B, C and D characteristic. Miniature circuit breakers from Siemens, offer the highest quality and reliability. The excellent technical properties of the devic...
Siemens
5SY4163-7
from £ 21.15*
per piece
Siemens Sentron 5SY4 MCB, 1P, 6A Curve B, 400V AC, 10 kA Breaking Capacity / 3831958 (3 offers) 
Standards: EN 60898; DIN VDE 0641; Part 11; IEC 60898. Siemens 5SY4 MCBs. The Siemens 5SY4 series are type C MCBs (miniature circuit breakers) rated at 400 V and provide a 10 kA breaking capacity. ...
Siemens
5SY4106-6
from £ 10.89*
per piece
Siemens SENTRON 5SY4 MCB, 1P, 6A, Type A, 10 kA Breaking Capacity / 2027066 (2 offers) 
The Siemens miniature circuit breaker are current limiting design provide the highest quality and reliability. It has a quick and easy installation. It has DIN rail assembly mounting type. Its used...
Siemens
5SY4106-5
from £ 17.58*
per piece
Siemens SENTRON 5SY4 MCB, 1P, 6A, Type A, 10 kA Breaking Capacity / 2027121 (2 offers) 
The Siemens miniature circuit breaker are current limiting design provide the highest quality and reliability. It has a quick and easy installation. It has DIN rail assembly mounting type. Its used...
Siemens
5SY4116-5
from £ 14.34*
per piece
Siemens SENTRON 5SY4 MCB, 1P, 80A Curve C, 400V AC, 72V DC, 5 kA Breaking Capacity / 2128951 (2 offers) 
The Siemens 5SY4 series Single-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. Sieme...
Siemens
5SY4180-7
from £ 28.23*
per piece
Siemens SENTRON 5SY4 MCB, 1P, 8A, Type A, 5 kA Breaking Capacity / 2132591 (2 offers) 
The Siemens Sentron miniature circuit breakers, are a type of switch used to automatically turn off electrical circuits during abnormal conditions. MCBs often replace fuses in low voltage electrica...
Siemens
5SY4108-5
from £ 17.09*
per piece
Siemens SENTRON 5SY4 MCB, 2P, 1.6A Curve C, 400V AC, 72V DC, 10 kA Breaking Capacity / 2096005 (2 offers) 
The Siemens 5SY4215-7 Miniature Circuit Breakers operate at 72 V DC and 1.6 A at AC. It has switching capacity of 10 kA according to EN 60898. These are ideal for application in large non-residenti...
Siemens
5SY4215-7
from £ 34.03*
per piece
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