ALF-63 Series Miniature Circuit Breaker

As the professional manufacture, XUCKY would like to provide you ALF-63 series miniature circuit breaker(MCB), conforms to IEC60898 standard, MCB has the characteristic of reliable performance, precise protective function, short release time ,and high break capacity, small volume as well, It widely used in and overload of contactor ,switchgear and electric apparatus.

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Product Description

ALF-63NH Series Miniature Circuit Breaker

Characteristic Curve

ALF-63NH Series Miniature Circuit Breaker

Technical Specification

ALF-63 Series Miniature Circuit Breaker
Standard	EN/IEC60898-1
Breaking capacity(kA)	6,10
Protection	Against overload and short circuit
Rated current(A)In	1,2,3,4,6,10,13,16,20,25,32,40,50,63
Rated voltage(V)	1PAC 230/400,240/415
Rated voltage(V)	1P+N,2P,3P,3P+N,4PAC400/415
Rated impulse withstand voltage Uimp(kV)	4
Rated insulation voltage Ui(V)	500
Energy limiting cass	3
Ambient temperature(℃)	-25~+40,Max.95%humidity
Thermal operating limit	1.13xln No tripping within an hour
Thermal operating limit	1.45xIn Tripping within an hour
Magnertic operating	B:(3-5)xIn,C:(5-10)xIn,D:(10-20)xIn
Number of poles	1P,1P+N,2P,3P,3P+N and 4P
Type of trip	Thermal/magnetic release
Terminal capacity	16mm² flexible or 25mm² rigid up to 25A ratings
Terminal capacity	25mm²flexible or 35mm²rigid from 32A to 63A ratings
Protection degree	IP20
Installation	Mounting on 35mm DIN rail
Width	17.8mm per pole

Circuit breaker release characteristic

NO.	Rated current of release(A)	Initial state	Test current	Specified time	Result to be obtained	Remarks
1	1-63	cold state	1.13In	t≤1h	Non-trip
2	1-63	upon the previous test	1.45ln	t<1h	trip	Setting current up to specified value steadily in 5s
3	In≤32	cold state	2.55In	1s<t<60s 1s<t<120s	trip
3	In>32	cold state	2.55In	1s<t<60s 1s<t<120s	trip
4	1-63	cold state	3In	t≤0.1s	Non-trip	B type
			5In	t<0.1s	trip	B type
			5In 10ln	t≤0.1s	Non-trip	C type
			10In	t<0.1s	trip	C type
			20ln	t≤0.1s	Non-trip	D type
				t<0.1s	trip	D type

Endurance(Operations)

Category	Operation Cycles	Operation frequency	Rated current
Electrical endurance	4000	240/h	1-32
		120/h	40-63
Mechanical endurance	10000	240/h	1-63

Features

1. Ultra-High Short-Circuit Breaking Capacity

Advanced arc control technology achieves higher interruption capacity compared to industry standards, ensuring that the ALF-63 series miniature circuit breaker (MCB) provides reliable protection for industrial-grade electrical systems under extreme fault conditions.

2. Dual-Mode Connection Interface

The integrated hybrid terminal design supports rigid busbar docking and flexible cable clamping. The ALF-63 series miniature circuit breaker (MCB) can adapt to various installation scenarios without any tools, while reducing wiring time by 40%.

3. Energy-Storage Mechanism for Longevity

The ALF-63 series miniature circuit breaker (MCB) has a spring-assisted operating system with 10,000 mechanical cycles endurance , featuring wear-compensation technology

4. Advanced Composite Enclosure

with with fame-retarcant,heat-resistant, and impulse -proof properties integrated arc-quenching chambers for contained fault events.

5. Dynamic Current-Limiting Topology

Intelligent let-through energy suppression reduces peak fault currents by 65-80%, enabling downstream device specification optimization with 30% overall system cost reduction potential.