63A 4 Pole MCB

Product Details

Responsive 3D Model

General

The YCB7-63N 63A 4-Pole MCB is a robust miniature circuit breaker designed for advanced electrical protection in three-phase systems. Engineered to IEC/EN 60898-1 standards, it safeguards industrial machinery, commercial facilities, and large residential complexes against overloads, short circuits, and isolation faults. With 20,000 mechanical cycles and 10,000 electrical operations, this 4-pole MCB delivers unmatched durability and reliability for critical applications.
Core Keywords: 63A 4 Pole MCB, 4 Pole Circuit Breaker 63A, IEC

Technical Specifications

Parameter	Details
Rated Current	63A (Adjustable: 1A–63A)
Poles	4-Pole (3-phase + neutral)
Rated Voltage	230V/400V AC
Breaking Capacity	20kA (IEC 60898-1)
Mechanical Life	20,000 cycles
Terminal Size	Up to 25mm² cables or busbars

Selection

YCB7	-	63	N	1P	C	16
Model		Shell grade current	Breaking capacity	Number of poles	Tripping characteristics	Rated curren
Miniatur circuit breaker e		63	N:6kA	1P 2P 3P 4P	B C D	1 2 4 6 10 16 20 25 32 40 50 63 80

Note:This product can be assembled with accessories(YCB7-63N OF/SD/OF+SD/ MX/ MVMN/MX+OF, etc)

Applications

Industrial Plants: Protect CNC machines, compressors, and conveyor systems.

Data Centers: Safeguard server racks and backup power circuits.

Renewable Energy: Ideal for solar inverters and wind turbine control panels.

Technical data

Type	Standard			IEC/EN 60898-1
Comprehensive data	Function			Overload, Short circuit, Isolation
	Number of poles			1P,2P,3P,4P
	Rated current In		A	1-63A
	Rated frequency		Hz	50/60Hz
Electrical features	Rated voltage Ue		V	230/400
	Rated insulation voltage Ui		V	500
	Rated breaking capacity Icn		A	6000
	Rated impulse withstand voltage Uimp(1.2/50）		kA	4
	Pollution degree			2
	Use category			II、III
	Trip type			Thermal magnetic release
	Thermal magnetic tripping characteristics			B,C,D
	Electrical and mechanical accessories			口
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°C, and it can have a higher relative humidity at a lower temperature
	Reference ambient temperature		°C	30
	Ambient temperature		°C	-5°C-+40°C, the average value of 24h does not exceed +35°C
	Height		m	Not exceeding 2000
Installation	Terminal connection type			Cable/Pin-type busbar
	Maximum wire capacity	Terminal size	mm²	25
		top/bottom for cable	AWG	18-3
		Terminal size	mm²	25
		top/bottom for busbar	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)

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
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	10In	t≤0.1s
B,C,D	1.45In	t<2h(In>63A)	Tripping	B	5In	t＜0.1s	Tripping
B,C,D	2.55In	1s<t<60s(In≤32A)	Tripping	C	10In	t＜0.1s
B,C,D	2.55In	1s<t<120s(In>32A)	Tripping	D	20In	t＜0.1s