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  MCBs (3,221 items)

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Siemens Sentron 5SY4 MCB, 4P, 40A Curve D, 400V AC, 10 kA Breaking Capacity / 1243206 (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
5SY4440-8
from £ 116.65*
per piece
from £ 116.65*
per piece
Siemens Sentron 5SY4 MCB, 4P, 4A Curve C, 400V AC, 10 kA Breaking Capacity / 1243188 (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
5SY4404-7
from £ 66.11*
per piece
from £ 66.11*
per piece
Siemens Sentron 5SY4 MCB, 4P, 4A Curve D, 400V AC, 10 kA Breaking Capacity / 1243189 (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
5SY4404-8
from £ 93.72*
per piece
from £ 93.72*
per piece
Siemens Sentron 5SY4 MCB, 4P, 50A Curve B, 400V AC, 10 kA Breaking Capacity / 1243207 (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
5SY4450-6
from £ 78.66*
per piece
from £ 78.66*
per piece
Siemens Sentron 5SY4 MCB, 4P, 50A Curve C, 400V AC, 10 kA Breaking Capacity / 1243208 (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
5SY4450-7
from £ 99.88*
per piece
from £ 99.88*
per piece
Siemens Sentron 5SY4 MCB, 4P, 50A Curve D, 400V AC, 10 kA Breaking Capacity / 1243209 (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
5SY4450-8
from £ 139.68*
per piece
from £ 139.68*
per piece
Siemens Sentron 5SY4 MCB, 4P, 63A Curve B, 400V AC, 10 kA Breaking Capacity / 1243210 (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
5SY4463-6
from £ 91.57*
per piece
from £ 91.57*
per piece
Siemens Sentron 5SY4 MCB, 4P, 63A Curve D, 400V AC, 10 kA Breaking Capacity / 1243212 (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
5SY4463-8
from £ 155.60*
per piece
from £ 155.60*
per piece
Siemens Sentron 5SY4 MCB, 4P, 6A Curve B, 400V AC, 10 kA Breaking Capacity / 1243190 (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
5SY4406-6
from £ 53.69*
per piece
from £ 53.69*
per piece
Siemens Sentron 5SY4 MCB, 4P, 6A Curve C, 400V AC, 10 kA Breaking Capacity / 1243191 (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
5SY4406-7
from £ 66.33*
per piece
from £ 66.33*
per piece
Siemens Sentron 5SY4 MCB, 4P, 6A Curve D, 400V AC, 10 kA Breaking Capacity / 1243192 (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
5SY4406-8
from £ 93.67*
per piece
from £ 93.67*
per piece
Siemens Sentron 5SY5 MCB, 1P, 25A Curve C, 220V AC, 250V DC, 10 kA Breaking Capacity / 1963623 (1 offer) 
Circuit breaker Universal current 220 V DC 230/400 V AC 10kA, 1-pole, C, 25A
Siemens
5SY5125-7
from £ 40.54*
per piece
from £ 40.54*
per piece
Siemens Sentron 5SY5 MCB, 1P, 6A Curve C, 220V AC, 250V DC, 10 kA Breaking Capacity / 1963622 (1 offer) 
Circuit breaker Universal current 220 V DC 230/400 V AC 10kA, 1-pole, C, 06A
Siemens
5SY5106-7
from £ 44.46*
per piece
from £ 44.46*
per piece
Siemens Sentron 5SY6 MCB, 1P+N, 2A Curve C, 230V AC, 72V DC, 6 kA Breaking Capacity / 1963633 (2 offers) 
Miniature Circuit breaker 230 V 6kA, 1+N-pole C, 2A, D=70 mm
Siemens
5SY6502-7
from £ 22.22*
per piece
from £ 22.22*
per piece
Siemens Sentron 5SY6 MCB, 1P, 1.6A Curve C, 230V AC, 6 kA Breaking Capacity / 5215156 (2 offers) 
EN 60898, VDE 0641 part of 11, IEC 60898. Sentron 5SY Series Miniature circuit breakers. Miniature circuit breakers from Siemens, offer the highest quality and reliability. The excellent technical ...
Siemens
5SY6115-7
from £ 12.29*
per piece
from £ 12.29*
per piece
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* Prices with asterisk are net prices excl. statutory VAT.
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