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  MCBs (5,082 items)

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Siemens 5SY4202-7 circuit breaker Miniature circuit breaker 2 (3 offers) 
Miniature circuit breaker 400 V 10kA, 2-pole, C, 2A, D=70 mm
Siemens
5SY42027
from £ 31.01*
per piece
Siemens Sentron 5SY4 MCB, 2P, 2A Curve D, 400V AC, 10 kA Breaking Capacity / 7721287 (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
5SY4202-8
from £ 50.84*
per piece
Siemens Sentron 5SY4 MCB, 2P, 32A Curve B, 400V AC, 10 kA Breaking Capacity / 7721344 (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
5SY4232-6
from £ 24.57*
per piece
Siemens Sentron 5SY4 MCB, 2P, 32A Curve C, 400V AC, 10 kA Breaking Capacity / 7721347 (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
5SY4232-7
from £ 32.11*
per piece
Siemens 5SY4203-7 circuit breaker Miniature circuit breaker 2 (2 offers) 
Miniature circuit breaker 400 V 10kA, 2-pole, C, 3 A, D=70 mm
Siemens
5SY42037
from £ 31.33*
per piece
Siemens Sentron 5SY4 MCB, 2P, 40A Curve B, 400V AC, 10 kA Breaking Capacity / 1243166 (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
5SY4240-6
from £ 30.73*
per piece
Siemens Sentron 5SY4 MCB, 2P, 40A Curve C, 400V AC, 10 kA Breaking Capacity / 1243167 (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
5SY4240-7
from £ 38.97*
per piece
Siemens Sentron 5SY4 MCB, 2P, 40A Curve D, 400V AC, 10 kA Breaking Capacity / 1243168 (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
5SY4240-8
from £ 53.943*
per piece
Siemens Sentron 5SY4 MCB, 2P, 4A Curve D, 400V AC, 10 kA Breaking Capacity / 7721284 (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
5SY4204-8
from £ 44.17*
per piece
Siemens 5SY4204-7 circuit breaker Miniature circuit breaker 2 (3 offers) 
Miniature circuit breaker 400 V 10kA, 2-pole, C, 4A, D=70 mm
Siemens
5SY42047
from £ 31.34*
per piece
Siemens Sentron 5SY4 MCB, 2P, 500mA Curve C, 400V AC, 10 kA Breaking Capacity / 1243165 (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
5SY4205-7
from £ 31.32*
per piece
Siemens Sentron 5SY4 MCB, 2P, 50A Curve B, 400V AC, 10 kA Breaking Capacity / 1243169 (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
5SY4250-6
from £ 37.43*
per piece
Siemens Sentron 5SY4 MCB, 2P, 50A Curve C, 400V AC, 10 kA Breaking Capacity / 1243170 (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
5SY4250-7
from £ 47.25*
per piece
Siemens Sentron 5SY4 MCB, 2P, 50A Curve D, 400V AC, 10 kA Breaking Capacity / 1243171 (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
5SY4250-8
from £ 62.80*
per piece
Siemens Sentron 5SY4 MCB, 2P, 63A Curve C, 400V AC, 10 kA Breaking Capacity / 1243173 (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
5SY4263-7
from £ 55.30*
per piece
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* Prices with asterisk are net prices excl. statutory VAT.
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