YCB9-80M/H Miniature Circuit Breaker MCB

Product Detail

General

The YCB9-80 series miniature circuit breaker are suitable for overcurrent protection of building line facilities and similar purposes in AC 50/60Hz, rated voltage 230V/400V, rated current up to 80A circuits. They have isolation, overload, and short circuit protection functions, and can also be used for infrequent operation and switching of lines under normal circumstances.Circuit breakers are suitable for various places such as industry, commerce, high-rise buildings, and residential buildings.

Standard:IEC/EN 60898-1,IEC/EN 60947-2

YCB9

Double busbar

Model

Frame size rated current

Breaking
capacity

Number
of poles

Tripping
characteristics

Rated
current

Others

Miniature
circuit breaker

M:6kA
H:10kA

1P
2P

3P
4P

B
C

1
2
4
6
10
16
20
25
32
40
50
63
80

/:Single busbar
DB:Double
busbar

Note: This product c）an be assembled with accessories（YCB9-80 OF/SD/OF+SD/ MX/ MVMN/MX+OF, etc

Technical data

Type	Standard			IEC/EN 60947-2	IEC/EN 60898-1
Comprehensive data	Function			Overload,Short circuit,Isolation
	Number of poles			1P,2P,3P,4P
	Rated current In		A	1-63A	1-80A
	Rated frequency		Hz	50/60Hz
Electrical features	Rated voltage Ue		V	230/400
	Rated insulation voltage Ui		V	500
	Rated breaking capacity Icn		A	M:6000 H:10000
	Rated impulse withstand voltage Uimp(1.2/50)		kA	4
	Pollution degree			2
	Use category			II,IⅢ
	Trip type			Thermal magnetic release
	Thermal magnetic tripping characteristics			8.5-12In	B,C,D
	Electrical and mechanical accessories			□
Mechanical features	Mechanical life		times	20000
	Electrical life		times	10000
	Protection degree			IP20
	Antihumidity and heat resistance			The relative humidity of the air is not more than 50%when the ambient air temperature is +40℃,and it can have a higher relative humidity at a lower temperature
	Reference ambient temperature		℃	30
	Ambient temperature		℃	-5℃-+40℃,the average value of 24h does not exceed +35℃
	Height		m	Not exceeding 2000
Installation	Busbar connection type			Single or Double bus bar Anti-mistake contact terminal block
	Terminal connection type			Cable/U-type busbar/Pin-type busbar
	Maximum wire capacity	Terminal size top/bottom for cable	mm²	25
			AWG	18-3
		Terminal size top/bottom for busbar	mm²	25
			AWG	18-3
	Torque		N*m	2
			In-lbs	18
	Tool		18	Phillips screwdriver or flat-blade screwdriver
	Installation			On DIN rail EN 60715(35mm)by means of fast clip device
	Wiring method			From top or bottom

Overall and mounting dimensions(mm)

Tripping characteristic(IEC/EN 60898-1)

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

Tripping characteristic(IEC/EN 60947-2)

Test	Rated curent	Test current	Initial status	Time limit for tripping or not tripping	Time limit for tripping or not tripping	Remarks
a	1-63A	1.05In	Cold state	t≥1h(In≤63A) t≥2h(In>63A)	Not tripping	Current increase steadily within 5s
b		1.3In	Right after test number a	t<1h(In≤63A) t<2h(In>63A)	Tripping	Current increase steadily within 5s
C		8ln	Cold state	t≥0.2s	Not tripping	Turn on the power supply byclosing the auxiliary switch
d		12In	Cold state	t<0.2s	Not tripping	Turn on the power supply byclosing the auxiliary switch