YCB3-63 MCB

Type designation

Model	Frame    size rated current	Number of poles	Tripping characteristics	Rated current
YCB3	63	1P	C	16
Miniature Circuit breaker	63	1P 2P 3P 4P	BCD	1 2 4 6 10 16 20 25 32 40 50 63

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≤0.1s	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
	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.Freg.for 1min	kV	2
	Pollution degree		2
	Thermo-magnetic release characteristic		B,C,D
Mechanical features	Electrical life	t	6000
	Mechanical life	t	20000
	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
	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

Overall and mounting dimensions(mm)