YCB9-63R Series Miniature Circuit Breaker

General

YCB9-63R Series Miniature circuit breaker is applicable to protecting from overload and short circuit in the circuit ofAC50/60Hz,Rated volt-age 230/400V rated curent 63A,t also can be used in switch the infequent operation of the circuit under normal conditions.It's mainly used inindustry,commerce,high-rise buildings and residential houses and so on.

Standard:IEC 60898-1

Feature

1.Overload protection

2.Short circuit protection

3.Controlling

4.Used in residential building,non-residential building,energy source industry and infrastructure

5.According to the type of instantaneous release classified as follows:type B(3-5)In,type C(5-10)In,type D(10-20)In

Type designation

 

Operating conditions

1.Circumstance temperature-5℃~+40℃,average temperature within 24h not exceeding+35℃.

2.Altitude above sea level less than 2000m.

3.Humidity not exceeding 50%at 40℃ and not exceeding 90%at 25℃.

4.Pollution class 2.

5.Installation class Il orⅢ.

6.Installation method DIN Railmounting type.

7.Product shall be installed at the place where there shall be no severe impact and vibration.

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

Selection

Type	Test current	Tripping time	Expected result		Type	Test current	Tripping time	Expected result
B,C,D	1.13In	t≤1h(In≤63A)	Not tripping		B	3In	t≤0.1	Not tripping
	1.13In	t≤2h(In>63A)			C	5In	t≤0.1s
B,C,D	1.45In	t≤1h(In≤63A)	Tripping		D	10ln	t≤0.1s
	1.45In	t<2h(In>63A)			B	5In	t<0.1s	Tripping
B,C,D	2.25In	1s<t<60s(In≤32A)	Tripping		C	10ln	t<0.1s
	2.25In	1s<t<120s(In>32A)			D	20ln	t<0.1s

Curve

 

Technical data

Type	Standard		IEC/EN 60898-1
Electrical features	Rated current In	A	1.2,4,6,10,16,20,25,32.40,50,63	1,2,4,6,10,16,20,25,32,40
	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	15000A	25000A
	Rated impulse withstand voltage(1.2/50)Uimp	V	4000
	Dielectric test voltage at ind.Freg.for 1min	kV	2
	Pollution degree		2
	Thermo-magnetic release characteristic		B,C,D
Mechanical features	Electrical life	t	8000
	Mechanical life	t	20000
	Protection degree		IP40
	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
	Terminal size top/bottom for cable	mm²	25
		AWG	18-3
	Terminal size top/bottom for busbar	mm²	25
		AWG	18-3
	Tightening torque	N*m	2
		In-lbs	18
	Mounting		On DIN rail EN 60715(35mm)by means of fast clip
	Connection		From top or bottom
Before  installation,check  whether  technical  parameter  of the  circuit  breaker  is  in  conformity  with  user's  requirement.The  conductor  of  power supply shall  be  connected to the  up terminal  of circuit  breaker.During  installation,the tightening torque  is  max 2.5N·m.The sectional  area  of connecting wire can refer to Table 1.
Table  1

Rated current InA	Conductor cross section S mm²
6	1
10	1.5
1,620	2.5
25	4
32	6
4,050	10
63	16

Temperature drop correction table

The maximum allowable curent of the circuit breaker is related to the ambient temperature of the circuit breaker.The ambient temperature re-fers to the temperature in the distribution box or switch cabinet where the circuit breaker i installed.The reference temperature of various circuitbreakers can be found in the values of the colored rows in the table.

Product standard:GB/T10963.1 IEC60898-1 (household standard)

temperature(℃)	-5	0	5	10	15	20	25	30	35	40	45
Rated current
1A	1.16	1.14	1.11	1.09	1.07	1.05	1.02	1.00	0.98	0.95	0.92
2A	2.30	2.26	2.22	2.18	2.13	2.08	2.04	2.00	1.96	1.92	1.88
4A	4.72	4.63	4.53	4.43	4.32	4.22	4.11	4.00	3.89	3.77	3.65
6A	6.97	6.84	6.71	6.57	6.43	6.29	6.15	6.00	5.85	5.69	5.53
10A	12.25	11.95	11.65	11.34	11.02	10.69	10.35	10.00	9.64	9.26	8.86
16A	18.72	18.35	17.98	17.60	17.22	16.82	16.42	16.00	15.57	15.13	14.68
20A	23.24	22.80	22.36	21.91	21.45	20.98	20.49	20.00	19.49	18.97	18.44
25A	29.12	28.57	28.01	27.43	26.85	26.24	25.63	25.00	24.35	23.69	23.01
32A	37.18	36.49	35.78	35.05	34.32	33.56	32.79	32.00	31.19	30.36	29.50
40A	46.66	45.77	44.86	43.93	42.98	42.01	41.02	40.00	38.96	37.88	36.78
50A	58.57	57.43	56.26	55.06	53.84	52.59	51.31	50.00	48.65	47.27	45.84
63A	74.73	73.17	71.57	69.94	68.27	66.56	64.81	63.00	61.14	59.22	57.24

Overall and mounting dimensions (mm)

 

Operating conditions

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: YCB9-63R C25 3P 880pcs.

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