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16 Amp 2 Pole MCB

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16 Amp 2 Pole MCB

YCB7-63N 16A 2-pole MCB provides overload/short circuit protection for 230V/400V AC circuits, ideal for residential, commercial, and industrial building installations with DIN rail mounting.

Model: YCB7-63N 2P 16A
Rated Parameters:

Current: 16A
Voltage: 230V/400V AC (50/60Hz)
Protection Functions: Overload, short circuit, and isolation protection with thermal-magnetic tripping (B/C/D curve options).
Installation: 35mm DIN rail mounting (EN 60715) via fast clip device; supports top/bottom wiring.
Core Features: Ergonomic handle for easy operation, modular design, 20,000 mechanical life cycles, and compliance with IEC/EN 60898-1 standards.

Product Details

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

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

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

Curve

FAQ

What is a 16 amp MCB used for?

Protects circuits/devices from overload/short circuits in AC 230V/400V systems, ideal for medium-low power loads like lighting, household appliances, and office equipment.

Why use a 2 pole MCB?

Cuts both live and neutral wires simultaneously for full isolation, enhancing safety during maintenance. Suitable for 230V single-phase circuits (e.g., air conditioners, water heaters).

How much load can a 16 amp MCB take?

Up to ~3,680W (16A×230V) for resistive loads (e.g., heaters); derate to ~3,000W for inductive loads (e.g., motors) for stability.

Which MCB is best, B or C?

B-type: Trips at 3-5×In (low inrush loads: lighting, sockets).

C-type: Trips at 5-10×In (medium inrush loads: motors, pumps). Choose based on load type.