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Mini Circuit Breaker
Mini Circuit Breaker
Mini Circuit Breaker
Mini Circuit Breaker
Mini Circuit Breaker
Mini Circuit Breaker

Member Details

Changan Group Co., Ltd.

China

Manufacturer,Engineering Contracting Company

  • Product Details
  • Company Profile

Mini Circuit Breaker

Technical Data

Technical Data

Electrical Features

Rated current In1,2,3,4,5,6,8,10,13,16,20,25,32,40,50,63A
Poles1P, 1P+N, 2P, 3P, 3P+N,4P
Rated voltage Ue240/415V~
Insulation voltage Ui500V
Rated frequency50/60Hz
Rated breaking capacity10,000A
Energy limiting class3
Rated impulse withstand voltage(1.5/50) Uimp4,000V
Dielectric test voltage at ind. Freq. for 1 min2kV
Pollution degree2
Thermo-magnetic release characteristicB,C,D

Mechanical Features

Electrical life8,000 Cycles
Mechanical life20,000 Cycles
Contact position indicatorYes
Protection degreeIP20
Reference temperature for setting of thermal element30℃
Ambient temperature (with daily average≤35℃)-5℃~+40℃
Storage temperature-25℃~+70℃

Installation 

Terminal connection typeCable/Pin-type busbar/U-type busbar
Terminal size top/bottom for cable25mm2 18-3AWG
Terminal size top/bottom for busbar25mm2 18-3AWG
Tightening torque2.5Nm 22In-Ibs
MountingOn DIN rail EN60715(35mm) by means of fast clip device
ConnectionFrom top and bottom

 Combination with accessories

Auxiliary contactEKM2-OF
Alarm contactEKM2-FB
Shunt releaseEKM2-MX
Over/Under voltage releaseEKM2-MV+MN

Characteristics Curves

Tripping characteristics

Based on the Tripping Characteristics, MCB are available in“ B”“, C”and“ D”curve to suit different types of applications.
“B”Curve for protection of electrical circuits with equipment that does not cause surge current (lighting and distribution circuits) Short circuit release is set to (3-5)In.
“C”Curve for protection of electrical circuits with equipment that cause surge current (inductive loads and motor circuits) Short circuit release is set to (5-10)In.
“D”Curve for protection of electrical circuits with cause high inrush current ,typically 12-15 times the thermal rated current (transformes, x-ray machines etc,)Short circuit release is set to (10-20)In.

Circuit Diagram

Overall and Installation Dimension(mm)

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