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3SB71Z-125, Miniature Circuit Breakers for DC Applications

Functions
●Overload protection
● Short circuit protection
● Controlling
● Protection for people and big length cables in TN and IT systems
● DC string protection: Protects the PV module from dangerous high DC back current
● Applications in direct current circuits,such as motors,auxiliary circuits,and photovoltaic systems.
● Used in industry and new energy
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Technical Specifications

  • Technical Specifications

  • Standard: IEC 60947-2

  • Rated current In(A):80,100,125

  • Number of poles:1,2,3,4

  • Operational voltage Ub(VDC):

  • Min.:12

  • Max.:1P:250;2P:500;3P:750;4P:1000

  • Rated insulation voltage(VDC):1500

  • Rated impulse withstand voltage(kA):5

  • Tripping characteristic:B,C

  • Characteristic B(In):4-7

  • Characteristic C (In):7-15

  • Thermal operating limit(In):1.05~1.3



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Miniature Circuit Breakers 3SB71Z-125 DC Miniature Circuit Breakers DC MCB
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