The XUCKY ALFHA Series Mini Circuit Breaker is a high-performance electrical protection device, designed for low-voltage power distribution systems. It provides reliable overcurrent and short-circuit protection for electrical equipment, wires, and cables, ensuring the safe and stable operation of the power system. With three breaking capacity options (4.5kA, 6kA, 10kA), it is widely applicable to residential, commercial, and industrial scenarios.
● Clear and visible product identification
● Advanced design
● Uniform style with patented design
● Quick and easy to install
● High performance
● For household and industrial applications
● Extended product range
● Improved reliability
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Series |
ALF4.5K |
ALF6K |
ALF10K |
ALF-125 |
ALFDC |
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1 |
Contact position indicator |
Yes |
Yes |
Yes |
Yes |
Yes |
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2 |
Standard |
IEC 60898-1 |
IEC 60898-1 |
IEC 60898-1 |
IEC 60947-2 |
IEC 60947-2 |
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3 |
Rated frequency [Fn, Hz] |
50 / 60 |
50 / 60 |
50 / 60 |
50 / 60 |
- |
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4 |
Rated breaking capacity [Icn, kA] |
4.5 / 6 |
6 |
10 |
10 |
6 |
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5 |
Poles |
1P, 2P, 3P, 4P |
1P, 2P, 3P, 4P |
1P, 2P, 3P, 4P |
1P, 2P, 3P, 4P |
1P, 2P |
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6 |
Rated operation voltage [Ue, V] |
1P: 220/380; 230/4002P: 220/380; 230/4003P: 380; 400; 4154P: 380; 400; 415 |
1P: 220/380; 230/4002P: 220/380; 230/4003P: 380; 400; 4154P: 380; 400; 415 |
1P: 220/380; 230/4002P: 220/380; 230/4003P: 380; 400; 4154P: 380; 400; 415 |
1P: 220/380; 230/4002P: 220/380; 230/4003P: 380; 400; 4154P: 380; 400; 415 |
1P: 250 2P: 500 |
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7 |
Rated Current [In, A] |
1; 2; 3; 4; 6; 10; 13; 16;20; 25; 32; 40; 50; 63 |
1; 2; 3; 4; 6; 10; 13; 16;20; 25; 32; 40; 50; 63 |
1; 2; 3; 4; 6; 10; 16; 20; 25; 32; 35; 40;50; 63; |
10; 16; 20; 25; 32; 40; 50;63; 80; 100; 125 |
1, 2, 3, 4, 5, 6, 10, 13, 16,20, 25, 32, 40, 50, 63 |
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8 |
Tripping curves [type] |
B, C, D |
B, C, D |
C, D |
C, |
C |
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9 |
Rated impulse withstand voltage [Uimp, kV] |
4 |
4 |
4 |
4 |
6.2 |
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10 |
Energy limit class |
3 |
3 |
3 |
3 |
3 |
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11 |
Degree of protection |
IP20 |
IP20 |
IP20 |
IP20 |
IP20 |
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12 |
Mechanical endurance [cycles] |
20 000 |
20 000 |
20 000 |
20 000 |
20 000 |
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13 |
Electrical endurance [cycles] |
10 000 |
10 000 |
8000 |
8000 |
10000 |
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14 |
Operation ambient temperature [°C] |
+40 to +55 |
+40 to +55 |
+25 to +50 |
+25 to +50 |
+25 to +50 |
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15 |
Cross-section of connected wires [mm²] |
1-25 |
1-25 |
1-35 |
1-50 |
1-25 |
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16 |
Tightening torque [N·m] |
2,5 |
2,5 |
2,5 |
2,5 |
2,5 |
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17 |
Line incoming type |
Top or bottom |
Top or bottom |
Top or bottom |
Top or bottom |
Top or bottom |
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18 |
Accessories |
Yes |
Yes |
Yes |
- |
Yes |
● High Breaking Capacity: 4.5kA/6kA/10kA optional, strong short-circuit protection ability, effectively avoiding electrical fires.
● Reliable Performance: Complies with IEC standards, strict quality control, stable operation in harsh environments.
● Compact Size: DIN rail mounting, small volume, saves installation space, suitable for various distribution boxes.
● Easy Installation: Simple structure, convenient wiring and disassembly, improving construction efficiency.
● OEM/ODM Available: Customizable logo, color, and parameters according to customer requirements.
Widely used in low-voltage power distribution systems such as residential buildings, commercial complexes, factories, hospitals, shopping malls, and industrial workshops, protecting electrical equipment, wires, and cables from overcurrent and short-circuit damage.
✅ Superior Breaking Capacity: 4.5kA / 6kA / 10kA optional, which can effectively cut off short-circuit current, protect your electrical equipment and power system from damage, and reduce the risk of electrical fires. It is the ideal choice for both residential and industrial use.
✅ International Certification: Complies with IEC 60898-1 and IEC 60947-2 standards, with CE and CB certifications (other certifications available upon request). It can smoothly enter the Middle East, Southeast Asia, Africa, and other international markets, no need to worry about customs clearance issues.
✅ Complete Specifications: 1P, 2P, 3P, 4P pole numbers available, rated current from 6A to 63A, suitable for different power distribution scenarios. Whether you need it for home, commercial, or industrial use, ALFHA series can meet your requirements.
✅ High Quality & Durability: Made of high-quality flame-retardant PC shell and silver alloy contacts, with strict quality control and testing before leaving the factory. The product has good heat resistance, corrosion resistance, and long service life, ensuring stable operation in harsh environments.
✅ Factory Direct Price & Flexible Cooperation: As a manufacturer, we offer competitive factory direct prices, no middlemen, maximizing your profit space. We also accept OEM/ODM orders, supporting custom logo, color, and parameters to meet your brand needs.
WENZHOU XUCKY ELECTRIC CO.,LTD is a professional manufacturer of electrical products, focusing on the R&D, production, and export of MCB, MCCB, ACB, and other low-voltage electrical equipment. With ISO 9001 quality management system certification, we have advanced production lines and testing equipment, providing high-quality products and competitive prices for global customers. Our products are exported to the Middle East, Southeast Asia, Africa, Latin America, and other regions, enjoying a good reputation in the international market.
Miniature circuit breakers ALF4.5K are electromechanical switching devices combining two main functions: short circuit protection and overload protection. Miniature circuit breakers (MCBs) are designed for residential and housing applications and comply with IEC 60898-1. Additionally, they have a reinforced housing with extra rivets for enhanced rigidity, and the front panel includes an indicator to show the physical contact position. The two-position clamp ensures easy MCB mounting onto a DIN rail.
● MCBs ALF4.5K are used in commercial, public,industrial and residential buildings:
● Carrying current under normal conditions;
● Infrequent manual switching of individual circuit branches;
● Protection against overload and short-circuit currents;
● Final component of terminal power distribution system.
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Parameters |
Values |
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Rated voltage Ue, V |
1P: 220/380; 230/400; 240/415 2P: 220/380; 230/400; 240/415 3P: 380; 400; 415 4P: 380; 400; 415 |
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Frequency fn, Hz |
50 / 60 |
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Number of poles |
1, 2, 3, 4 |
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Rated current In, A |
1; 2; 3; 4; 6; 8; 10; 13; 16; 13; 20; 25; 32; 40; 50; 63 |
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Rated impulse withstand voltage Uimp, kV |
4 |
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Tripping types |
B, C, D |
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Degree of protection |
IP20 |
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Rated breaking capacity Icn, kA |
4.5 / 6 |
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Energy limiting class |
3 |
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Mechanical endurance, O-C cycles |
20 000 |
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Electrical endurance, O-C cycles |
10 000 |
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Operating temperature, °C |
-40 to +55 |
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Cross-section of connected wires, mm² |
1-25 |
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Max. tightening torque, N·m |
2.5 |
Miniature circuit breakers ALF6K are electromechanical switching devices combining two main functions: short circuit protection and overload protection. Miniature circuit breakers (MCBs) are designed for residential and housing applications and comply with IEC 60898-1. Additionally, they have a reinforced housing with extra rivets for enhanced rigidity, and the front panel includes an indicator to show the physical contact position. The two-position clamp ensures easy MCB mounting onto a DIN rail.
● MCBs ALF6K are used in commercial, public,industrial and residential buildings:
● Carrying current under normal conditions;
● Infrequent manual switching of individual circuit branches;
● Protection against overload and short-circuit currents;
● Final component of terminal power distribution system.
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Parameters |
Values |
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Rated voltage Ue, V |
1P: 220/380; 230/400; 240/415 2P: 220/380; 230/400; 240/415 3P: 380; 400; 415 4P: 380; 400; 415 |
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Frequency fn, Hz |
50 / 60 |
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Number of poles |
1, 2, 3, 4 |
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Rated current In, A |
1; 2; 3; 4; 6; 8; 10; 13; 16; 13; 20; 25; 32; 40; 50; 63 |
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Rated impulse withstand voltage Uimp, kV |
4 |
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Tripping types |
B, C, D |
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Degree of protection |
IP20 |
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Rated breaking capacity Icn, kA |
6 |
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Energy limiting class |
3 |
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Mechanical endurance, O-C cycles |
20 000 |
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Electrical endurance, O-C cycles |
10 000 |
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Operating temperature, °C |
-40 to +55 |
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Cross-section of connected wires, mm² |
1-25 |
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Max. tightening torque, N·m |
2.5 |
Miniature circuit breakers ALF10K are electromechanical switching devices combining two main functions: short circuit protection and overload protection. Miniature circuit breakers (MCBs) are designed for residential and housing applications and comply with IEC 60898-1. Additionally, they have a reinforced housing with extra rivets for enhanced rigidity, and the front panel includes an indicator to show the physical contact position. The two-position clamp ensures easy MCB mounting onto a DIN rail.
● MCBs ALF10K are used in commercial, public,industrial and residential buildings:
● Carrying current under normal conditions;
● Infrequent manual switching of individual circuit branches;
● Protection against overload and short-circuit currents;
● Final component of terminal power distribution system.
● For commercial, industrial & high-power systems; high fault current locations, main incomers, factories.
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Parameters |
Values |
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Rated voltage Ue, V |
1P: 220/380; 230/400; 240/415 2P: 220/380; 230/400; 240/415 3P: 380; 400; 415 4P: 380; 400; 415 |
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Frequency fn, Hz |
50 / 60 |
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Number of poles |
1, 2, 3, 4 |
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Rated current In, A |
1; 2; 3; 4; 6; 8; 10; 13; 16; 13; 20; 25; 32; 40; 50; 63 |
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Rated impulse withstand voltage Uimp, kV |
4 |
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Tripping types |
B, C, D |
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Degree of protection |
IP20 |
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Rated breaking capacity Icn, kA |
10 |
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Energy limiting class |
3 |
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Mechanical endurance, O-C cycles |
20 000 |
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Electrical endurance, O-C cycles |
10 000 |
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Operating temperature, °C |
-40 to +55 |
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Cross-section of connected wires, mm² |
1-25 |
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Max. tightening torque, N·m |
2.5 |
Due to their high breaking capacity limit of 10 kA, miniature circuit breakers ALF-125 combine all the features of the previous model (interchangeable) and the latest innovations.The MCB housing is 1,5 module (27 mm) wide with rated current up to 125A.
● MCBs ALF-125 are used in commercial, public,industrial and residential buildings:
● Current carrying under normal conditions;
● Infrequent manual switching of individual circuit branches;
● Protection against overload and short-circuit currents;
● Final component of terminal power distribution system.
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Parameters |
Values |
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Rated voltage Ue, V |
1P: 220/380; 230/400; 240/415 2P: 220/380; 230/400; 240/415 3P: 380; 400; 415 4P: 380; 400; 415 |
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Frequency fn, Hz |
50 / 60 |
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Number of poles |
1, 2, 3, 4 |
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Rated current In, A |
10; 16; 20; 25; 32; 35; 40; 50; 63; 80; 100; 125 |
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Rated impulse withstand voltage Uimp, kV |
4 |
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Tripping types |
C, D |
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Degree of protection |
IP20 |
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Rated breaking capacity Icn, kA |
10 |
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Energy limiting class |
3 |
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Mechanical endurance, O-C cycles |
20 000 |
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Electrical endurance, O-C cycles |
8 000 |
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Operating temperature, °C |
-25 to +55 |
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Cross-section of connected wires, mm² |
1-35 |
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Max. tightening torque, N·m |
2.5 |
ALI-125 series isolating switches are mainly used as the main switch in terminal electrical appliances for isolating AC 50/60Hz power distribution lines with rated voltage up to 400V and rated current up to 125A. They can also be used for infrequent connection and disconnection of circuits and are widely used in industrial and mining enterprises, high-rise buildings, commercial and residential places.
ALI-125 Isolating switch are provides visible break for personnel protection; used in distribution boards, upstream of breakers, and equipment where safe isolation is required.
Standard: Confirming to EN / IEC60947-3
Number of poles: 2P,4P
Rated currents: 16,20, 25,32, 40,50,63, 80, 100, 125A
Rated voltage:
2P 240V/415V-AC 50/60Hz
4P 415V-AC 50/60Hz
Utilization category: AC-22A
lew: 12le,t=0,1s
Rated short-circuit making capacity Icm: 20le, t=0.1s
Rated making & breaking capacity: 3le,1.05Ue, COSφ =0.65
Rated insulation voltage Ui: 690V
Rated impulse withstand voltage Uimp: 4000V
Electrical endurance: 1500
Mechanical endurance: 10000
Type of terminal: Lug type and Pin type
Terminal capacity: Cables up to 50mm²
Protection degree: IP20
Installation: Mounting on 35mm DIN rail
Width: 17.5mm per pole
1. Ambient air temperature:upper limit+40°C,lower limit-5C,and average temperature over 24 hours not exceeding +35°C.
2. Altitude of installation site not exceeding 2000m.
3.Relative humidity not exceeding 50% at a maximum temperature of+40C.Higher relative humidity is permissible at lower temperatures,such as 90% at 20°C.Special measures should be taken to address occasional condensation due to temperature changes.
4.Pollution degree:Level2.
5.Installation category:II,III.
6.Installed using TH35-7.5 standard DIN rail.
Diconectnsihesshoulgeneralbeintaldvercalwhthhandfacinguwardfocurrnt connection.
8. Installation location should be free from significant impact and vibration.
9.Rated duty cycle: Continuous duty.
Overall and installation dimensions (mm)
The residual current circuit breaker (RCCB) ALFR is a new generation of devices used to protect people against electric shock by direct & indirect contact and protect equipment against fires caused by leakage currents. In order to protect the consumers against overload and short-circuit currents, RCCB must be used in together with MCB. Selective performance.
● Protection of people against electric shock by direct & indirect contact;
● Protection of electrical equipment (EE) in case of damage to the insulation of conductors and failures of electrical equipment (EE);
● Protection of equipment against fires caused by leakage currents to housing or ground;
● RCCB type A is used in buildings and residential areas with household appliances (TV, personal computers, adjustable light sources,modern washing machines, etc.).
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Parameters |
Values |
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Rated voltage Ue, V |
230/400 |
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Frequency fn, Hz |
50 |
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The number of poles |
2, 4 |
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Rated short-circuit breaking capacity Icn, A |
6000/10000 |
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Rated current In, A |
16, 20, 25, 32, 40, 50, 63, 80, 100 |
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Rated breaking residual current IΔn, mA |
10, 30, 100, 300 |
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Tripping curve |
B, C |
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Residual current tripping type |
A, AC |
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Type by time delay |
S (AC type) |
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Rated residual non-operating current IΔno, mA |
0.5IΔn |
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Leakage protection type |
Voltage dependent (electromagnetic) |
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Degree of protection |
IP20 |
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Mechanical endurance, O-C cycles |
10000 |
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Electrical endurance, O-C cycles |
2500 |
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Operating temperatures, °C |
-25…+55 |
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Cross-section of connection wires, mm² |
1 – 25 |
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Tightening torque, max. N·m |
2.5 |
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No.2567 Liuqing South Road, Liushi, Yueqing, Wenzhou, Zhejiang, China
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