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3SB71Z-63, 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
Availability:

Technical Specifications

●Standard:IEC60947-2

● Rated current In(A):6,10,16,20,25,32,40,50,63 

● Number of poles:1,2,3,4 

● Rated voltage Ue(VDC): 1P:250   2P:500 0 3P:750   4P:1000

● Rated insulation voltage(V DC):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):1.05-1.30

The operating mechanism of the DC circuit breaker has the functions of quick closing and quick broaking, and has the advantages of compact structure,small volume and convenient use.

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