6KA MCB Mini Circuit Breaker CAB2-125S
6KA MCB Mini Circuit Breaker CAB2-125S
6KA MCB Mini Circuit Breaker CAB2-125S
6KA MCB Mini Circuit Breaker CAB2-125S

CAB2-125S 6KA Circuit Breaker

CAB2-125S Circuit Breaker has the characteristics of advanced structure, reliable performance, high breaking capacity(6kA) and beautiful appearance. It is mainly used for AC 50Hz or 60Hz, rated voltage 400V or below and rated working current 125A or below. It is used for overload and short-circuit protection of lighting, distribution lines, equipment in office buildings, residential buildings and etc. It can also be used for infrequent on-off operations and conversion of lines.

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Product Description

CAB2-125S Circuit Breaker has the characteristics of advanced structure, reliable performance, high breaking capacity(6kA) and beautiful appearance. It is mainly used for AC 50Hz or 60Hz, rated voltage 400V or below and rated working current 125A or below. It is used for overload and short-circuit protection of lighting, distribution lines, equipment in office buildings, residential buildings and etc. It can also be used for infrequent on-off operations and conversion of lines.

Electrical Features Rated current In 63,80,100,125A
Poles 1P, 1P+N, 2P, 3P, 3P+N,4P
Rated voltage Ue 240/415V~
Insulation voltage Ui 500V
Rated frequency 50/60Hz
Rated breaking capacity 6,000A
Energy limiting class 3
Rated impulse withstand voltage(1.5/50) Uimp 4,000V
Dielectric test voltage at ind. Freq. for 1 min 2kV
Pollution degree 2
Thermo-magnetic release characteristic B,C,D
Mechanical Features Electrical life 4,000 Cycles
Mechanical life 10,000 Cycles
Contact position indicator Yes
Protection degree IP20
Reference temperature for setting of thermal element 30℃
Ambient temperature (with daily average≤35℃) -5℃~+40℃
Storage temperature -25℃~+70℃
Installation Terminal connection type Cable/Pin-type busbar/U-type busbar
Terminal size top/bottom for cable 50mm2 18-2AWG
Terminal size top/bottom for busbar 50mm2 18-2AWG
Tightening torque 3.5Nm 30In-Ibs
Mounting On DIN rail EN60715(35mm) by means of fast clip device
Connection Power supply in both directions

MCB Characteristics Curves

Thermal Tripping

Magnetic Tripping

Asper IEC60898

No tripping current

Tripping current I2

Time Limits t

Hold current I4

Trip current I5

Time Limits t

B Curve

1.13×IN

 

≥1h

3×IN

 

≥0.1s

 

1.45×IN

<1h

 

5×IN

<0.1s

 

C Curve

1.13×IN   ≥1h 5×IN   ≥0.1s
  1.45×IN <1h  

10×IN

<0.1s

D Curve

1.13×IN

 

≥1h

10×IN

 

≥0.1s

  1.45×IN

<1h

 

20×IN

<0.1s

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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