ALF6K Miniature Circuit Breaker（MCB）
Product Details
Product Descriprion
The ALF6K series miniature circuit breakers comply with IEC/EN 60898 standards, offering overload and short-circuit protection for AC 50/60Hz circuits. Rated current ranges from 0.5A to 63A, with voltage ratings of 230V/400V AC (1-pole) and 400V AC (2/3/4-pole). Thermal-magnetic tripping with B, C, and D curves ensures reliable performance across residential, commercial, and light-industrial applications, making them ideal for bulk distribution board projects and OEM orders.
With a 6kA breaking capacity, 4000 electrical operations lifespan, and 10,000 mechanical cycles, the ALF6K series delivers consistent performance even in demanding environments. Temperature compensation ensures stable operation from -5°C to +40°C. Designed with 18mm uniform pole width, color-coded handles, and visible contact indicators, they simplify installation and maintenance for contractors and wholesale clients.
Installation is straightforward with copper wires (1.5-16mm²) and torque specifications of 1.2Nm to 3.0Nm, supporting quick assembly for large-scale projects. We offer custom packaging, private labeling, and neutral OEM services to meet your brand and project requirements. All products undergo strict quality control and come with complete certification documentation for international trade.
Application
|
Standard |
Confirming to EN/IEC60898 |
|
Breaking capacity |
6kA |
|
Protection |
Against overload and short circuit |
|
Rated current In |
0.5,1,2,3,4,6,10,13,16,20,25,32,40,50,63A |
|
Rated voltage |
1pole 230/400V AC 50/60Hz 2,3,4pole 400V AC 50/60Hz Rated insulation voltage Ui:500V Rated impulse withstand voltage Uimp:6000V Energy limiting class:3 |
|
Ambient temperature |
-5C to+40℃ pursuant to EN/IEC60898 |
|
Characteristic |
Thermal operating limit:(1.13-1.45)×In Magnetic operating:B:(3-5)x In C:(5-10)×In D:(10-20)×In |
|
Number of poles |
1P,1P+N,2P,3P,3P+N and 4P |
|
Type of trip |
Thermal /magnetic release |
|
Type of terminal |
Lug type and Pin type |
|
Terminal capacity |
16mm² flexible or 25mm² rigid up to 25A ratings 25mm² flexible or 35mm²rigid for 32A to 63A ratings |
|
Protection degree |
IP20 |
|
Installation |
Mounting on 35mm DIN rail |
|
Width |
17.5mm per pole |
Curves
Endurance(operations)
|
Category |
Operations |
Operation frequency |
Rated current |
|
Electrical endurance |
4000 |
240/h |
0.5~32 |
|
120/h |
40~63 |
||
|
Mechanical endurance |
10000 |
240/h |
0.5~63 |
Please refer to table below for temperature compensation correction
|
In(A) |
Temperature compensation coefficient under various operational temperature
|
||||||||
|
-10℃
|
0℃ |
10℃ |
20℃ |
30℃ |
40℃ |
50℃ |
55℃ |
60℃ |
|
|
1~6 |
1.20 |
1.14 |
1.09 |
1.05 |
1.00 |
0.96 |
0.80 |
0.75 |
0.70 |
|
10~32 |
1.18 |
1.12 |
1.08 |
1.04 |
1.00 |
0.96 |
0.92 |
0.88 |
0.84 |
|
40~63 |
1.16 |
1.12 |
1.08 |
1.03 |
1.00 |
0.9 |
0.87 |
0.83 |
0.80 |
Wiring
The suitable conductors should be used for connection,see table for relative parameters.
|
Rated current In(A) |
Nominal cross section area(mm²) |
Tightening torque (N.m) |
|
1~6 |
1 |
2 |
|
10 |
1.5 |
2 |
|
13,16,20 |
2.5 |
2 |
|
25 |
4 |
2 |
|
32 |
6 |
2 |
|
40,50 |
10 |
2 |
|
63 |
16 |
2 |
Product display
Features
✅ Factory-direct pricing for bulk and wholesale orders
✅ OEM/ODM support: custom branding, packaging, and specifications
✅ IEC/EN 60898 certified for global compliance
✅ 6kA breaking capacity with B/C/D curves for diverse applications
✅ Long lifespan (4000 electrical / 10,000 mechanical operations)
✅ Temperature-compensated performance for stable operation
✅ Uniform 18mm pole width for easy DIN rail installation
✅ Complete technical documentation for export and project use