YCB7-125N MCB Miniature circuit breaker

Product Detail

General

YCB7-125N miniature circuit breaker(circuit breaker)is applicable to the circuit with AC50 Hz/60Hz, rated voltage of no more than400 V,and rated current from 10A to 125A for overload protection and short circuit protection. This product can be applied to various places such as industrial, commercial, tall buildings, and residential houses.

Standard: IEC 60947-2、IEC 60947-2 IEC 60898-1

Operating conditions

1. Ambient air temperature -5°C ~+40°C (with daily average≤35°C)

2. Altitude:≤2000m.

3. Air conditions: At mounting site, relative humidity not exceed 50% at the maximum temperature of +40°C. For the wettest month, the maxi

mum relative humidity averaged shall be 90% while the lowest temperature averaged in that month is +20°C , special measures should be

taken to occurrence of condensation.

4. The installation category is Ⅲ .

5. The circuit breaker shall be installed on DIN rail EN 60715(35mm), which shall meet theA1.1 TH 35-7.5 steel mounting rail requirements.

6. Pollution grade: 3

7. Mounting conditions: inclination between mounting plane and vertical plane not exceed±5°.

8. The product should locate in the places where there are no obvious impact and shake.

Table 1
Ui	Uimp	Number of poles	Rated frequency HZ	Rated voltage Ue	Rated Current In	Thermomagnetic release characteristic	Rated circuit breaking capacity Icn
500V	6kV	1P/2P	50/60	AC230V/400V	10-125A	(C)li=8In,	6kAli=12In
		3P/4P		AC400V

Release

Type	Test current	Tripping time	Expected result
C,D	1.05In	t≤1h(In≤63A),t≤2h(In≤63A)	Not tripping
C,D	1.3In	t≤1h(In≤63A),t≤2h(In≤63A)	Tripping
C,D	2.55In	1s<t<60s	Tripping
C	8ln×80%	t≤0.2s	Not tripping
D	12In×80%	t≤0.2s	Not tripping
C	8ln×120%	t<0.2s	Tripping
D	12In×120%	t<0.2s	Tripping

Specifications

Type	Standard		IEC/EN 60947-2	IEC/EN 60898-1
Electrical features	Rated current In	A	10,16,20,25,40,50,63,80,100,125
	Poles	P	1,2,3,4
	Rated voltage Ue	V	230/400
	Insulation voltage Ui	V	500
	Rated frequency	Hz	50/60
	Rated breaking capacity	A	6000
	Rated impulse withstand voltage(1.2/50)Uimp	V	6000
	Dielectric test voltage at ind.Freq.for 1min	kV	2.5
	Pollution degree		3
	Thermo-magnetic release characteristic		(C)li=8In,(D)li=12In
Mechanical features	Electrical life	t	1500
	Mechanical life	t	8500
	Contact position indicator		Yes
	Protection degree		IP20
	Reference temperature for setting of thermal element		30
	Ambient temperature (with daily average ≤35℃)	℃	-5~+40(Special application please refer to temperature compensation correction)
	Storage temperature	℃	-25~+70
Installation	Terminal connection type	℃	Cable/Pin-type busbar
	Terminal size top/bottom for cable	mm²	50
		AWG	18-1/0
	Terminal size top/bottom for busbar	mm²	50
		AWG	18-1/0
	Tightening torque	N*m	3.5
		In-lbs	31
	Mounting		On DIN rail EN60715(35mm)by means of fast clip device
	Connection		From top and bottom

Overall and mounting dimensions(mm)

Ordering instructions

1. When ordering, the customer shall indicate the product type, tripping curve, rated current, number of poles, accessories and quantity of the circuit breaker. For example: YCB7- 125N 3P C100 1000pcs.

2. Customers can negotiate separately if you have special requirements.

Product Tags

6000A MCB