MCB

1  Application

·Overload & short circuit protection

·Positive isolation

·Clear contact position indication in red/green

·High Interruption rating capabilities.

Suitable for industrial, commercial, high-rise and civil residences circuit protection.

2. Type designation

3  Technical data

Specifications
Rated voltage(v)	230V(1P)、400V(2~4P)
Rated current(A)	63A、80A、100A
Poles	1P、2P、3P、4P
Rated breaking capacity lcn(A)	Icu=Ics=6000A
Rated impulse withstand voltage Uimp(V)	6000V
Tripping characteristics	Table 1
Mechanical life & Electrical life	8500&1500（Operating frequency：120 /h）
Nominal cross section area S (mm2)	Table 2
Pollution Degree	2
Tightening torque(N·m)	2.5
Protection class	IP20
Overvoltage category	Ⅱ&Ⅲ
Standards	IEC60947-2、GB/T14048.2

 

Table1 : Tripping characteristics 

Model  Test current  Initial status    Tripping time      Expected result     Remarks
a	1.05In	Cold	t≤1h ( In≤63A）	Non-tripping
			t≤2h ( In≥63A）
b	1.3In	Following Model a test	t＜1h ( In≤63A）	tripping	Current smoothly rises to specified value in 5s
			t＜2h(（In≥63A）
c	2In	Cold	0＜t＜300s	tripping
d	8In	Cold	t≤0.2s	Non-tripping	Switch on the power supply by closing the auxiliary switch
e	12In	Cold	t＜0.2s	tripping

Note: The term “cold ” means that the test is carried out at a reference calibration temperature without load before the test.

4  Operating conditions.
4.1 : Ambient temp. range:-5℃~+40 ℃，average temperature in 24 hours not exceed +35℃
4.2 : Altitude:≤ 2000m;
4.3 : At mounting site, relative humidity not exceed 50% at the max temperature of +40 ℃，higher relative humidity is allowable under lower temperature, for example ,RH could be 90% at +20 ℃
4.4 : Mounting type : Din rail embedded(TH35-7.5)

5 Conductor requirements and cross-sectional area

In(A)	Nominal cross section area (mm²)
63	16
80	25
100	35

6 Dimensions （unit :mm）

7 Tripping curve

8.CCC

CQB5-100(英).pdf