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Siemens Sentron 5SN Miniature Circuit Breaker
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Siemens Sentron 5SN Miniature Circuit Breaker

Manufacturer: Siemens
Model: Sentron 5SN
Frame Current Range: 6-63A
Breaking Capacity: 6,10kA
Number of Poles: 1P,1P+N,2P,3P, 3P+N,4P

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Product Description

Siemens Sentron 5SN series miniature circuit breakers (MCBs) are designed for terminal distribution protection in low-voltage systems. This series offers reliable overcurrent and short-circuit protection, featuring both 6kA and 10kA breaking capacities with current ratings from 6A to 63A. The 5SN range includes 1P to 4P configurations and tripping curves B, C, D to suit diverse load types. Key innovations include energy-efficient operation (consuming only 1/3–1/2 of IEC-standard power), compact designs (e.g., 18mm width for space-saving), and enhanced safety with touch-proof insulation.

Standard Features

It supports comprehensive accessories like auxiliary contacts and fault signaling units, making it ideal for residential, commercial, and light industrial applications.

  • Dual Breaking Capacity: 6kA and 10kA options for flexible fault protection

  • Touch-Proof Design: Insulated terminals prevent accidental contact during installation

  • Energy Efficiency: Power dissipation as low as 1.2–1.8W per pole, reducing operational costs

  • Compact Models: 18mm-wide RCBOs (e.g., 5SY30) with A/AC-type residual current protection

  • Slide-Latch Mechanism: Tool-free installation and removal for efficient maintenance

  • Universal Accessories: Compatible with AS/FC contacts, shunt releases (ST), and under-voltage trips (UR)

  • High Compatibility: Supports 25mm² wire connections and top/bottom feed configurations

Technical Specifications

ModelRated Current (A)Poles

5SN6 1P B6A  5SN6 1P C6A

5SN6 1P D6A

61P,2P,3P,4P
5SN6 1P C8A8

5SN6 1P B10A  5SN6 1P C10A

5SN6 1P D10A

10

5SN6 1P C13A  5SN6 1P D13A

13

5SN6 1P B16A  5SN6 1P D16A

16

5SN6 1P B20A  5SN6 1P C20A

5SN6 1P D20A

20

5SN6 1P B25A  5SN6 1P C25A

5SN6 1P D25A

25

5SN6 1P B32A  5SN6 1P C32A

5SN6 1P D32A

32

5SN6 1P B40A  5SN6 1P C40A

5SN6 1P D40A

40

5SN6 1P B50A  5SN6 1P C50A

5SN6 1P D50A

50

5SN6 1P B63A  5SN6 1P C63A

5SN6 1P D63A

63

 

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