Description

Miniature Circuit Breaker 3SB71Z.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 dangerously high DC back current
.used in industry and new energy.

Specification

Miniature Circuit Breaker 3SB71Z.Standards:IEC60898-2.IEC60947-2
.Approval:CE
.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 220V 2~4P 440V
.Rated insulation voltage(VAC):500
.Rated frequency(Hz):50/60
.Rated impulse withstand voltage(kA):
.Tripping characteristic:B,C
Characteristic curve B(In):4-7
Characteristic curve C(In):7-15
.Thermal operating limit(In):1.13-1.45
.Fire resistance according to UL 94:V0
.Mounting position：Any
.Conductor cross-sections
.Solid and stranded (mm2):0.75-35
.Finely stranded with end sleeve (mm2):0.75-25
.Terminal tightening torque (N.m):2.5-4
.Ambient temperature(℃):-25~+45, max.95% humidity
.Storage temperature(℃)：-40~+75
.Altitude (meters):Max 2,000
.Connection Capacity(mm2):1-25