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Key Parameters:
· Certificates:CE/CB/ISO9001/CCC ;
· Rated voltage:230/400VAC;
· Frequency:50/60Hz;
· Rated current:1,3,6,10,16,20,25,32,40,50,63A;
· Poles: 1/2/3/4poles optional;
· Mechniacal life:20,000times;
· Flame-redardant:PA66 nylon material;
· Protection degree:IP20;
· With over load/short circuit protection;
· Standard:IEC60898;
· Enduring tem.30°C
· Breaking Capacity:6kA;
· Lighting/Motor protection optional
· Installation method: 35mm DIN rail
Application
SG65-63 high breaking miniature circuit breaker has the features of structure advanced, performance reliable, breaking capacity high, appearance elegant and its shell and parts are made of material with impact resistance, strong flame-retardant feature.
It is suitable to power system of 50or 60 frequency ,Ue 400V and below, Ui 63A and below.
It is mainly applied at office building, residence, for lighting , power distribution and overload and short circuit protection of equipment. Normally, it also can be used as the not frequent transfer of power system. It conforms to the standards IEC60898and GB10963.1.
Technical Parameters
Remark:
1.mechanical life:20,000 times(off-on)
2.heat resistance: category 2 (temperature 55°C,relative humidity 95%).
3.wiring is terminal with clamp, cable dia.:25mm2
Current Release Character Diagram
This series supports B, C and D tripping curves to meet different requirements from pure resistance load to large inductance load.
Answer: The SG65-6KA MCB features a rated breaking capacity of 6000A (6kA). This ensures high-level protection against short-circuit currents in residential and commercial power distribution systems, complying with the IEC60898-1 standard.
Answer: The SG65 series supports three primary tripping characteristics to suit different load types:
B Curve: For resistive loads and lighting with low surge currents.
C Curve: For general power distribution and inductive loads (standard for residential).
D Curve: For high inductive loads such as motors and transformers with high starting currents.
Answer: While the standard SG65 is designed for AC 50/60Hz systems (up to 400V), SINGI offers specialized DC MCB variants within the SG65 platform specifically engineered for solar PV string protection and battery storage systems.
Answer: The SG65 series is built for long-term reliability, offering an electrical life of ≥ 8,000 operations and a mechanical life of ≥ 20,000 operations under normal working conditions.
Answer: The SG65 series is manufactured under an ISO9001 quality management system and holds international safety certifications including CE, CB, and CCC, ensuring it meets the rigorous safety requirements of global markets.
Answer: The SG65 is equipped with "tunnel-type" terminals capable of accepting cables up to 25mm². This design provides a secure connection and reduces contact resistance, preventing overheating at the terminal points.
SINGI, established in 1995, is a premier global manufacturer and systems integrator specializing in low-voltage electrical apparatus and smart home multimedia solutions. With over 30 years of industry expertise, SINGI provides safe, reliable power distribution and circuit protection solutions for residential, commercial, and industrial sectors.
Production Powerhouse: SINGI operates a massive 40,000 m² modernized production facility equipped with over 20 advanced automated lines and 300+ precision testing instruments.
Technical Innovation: Our R&D department, comprised of over 30 senior engineers, holds more than 50 national patents, ensuring continuous evolution in electrical safety technology.
Global Footprint: SINGI products are exported to over 30 countries, with established overseas branches in regions such as Kazakhstan and Southeast Asia.
| Feature | Fact / Specification |
| Founded | 1995 |
| Annual Output Value | Approx. $90 Million USD |
| Workforce | 300+ Professional Employees |
| Core Certifications | ISO9001, ISO14001, CE, CB, UL, ETL, CCC |
| Main Product Lines | MCB, MCCB, Distribution Boxes, PV Components |
SINGI delivers a comprehensive ecosystem for modern electrical infrastructure:
Circuit Protection Solutions: High-performance Miniature Circuit Breakers (MCBs) like the SG65 Series (6kA breaking capacity) designed for robust overload and short-circuit protection.
Renewable Energy (PV) Components: Specialized DC MCBs, DC Isolator Switches, and Surge Protective Devices (SPD) for solar photovoltaic systems.
Power Distribution Systems: Professional-grade Smart Fiber Information Boxes, Lighting Distribution Boards, and high-durability Metal/Plastic Junction Boxes.
Industry Recognition: As an ISO9001-certified enterprise, SINGI is recognized as a "Leading Brand in China’s Building Electrical Industry." We have successfully collaborated with global giants such as Honeywell, CHINT, and HONYAR to deliver high-standard electrical components.
key word: MCB,miniature circuit breaker,China manufacturer.
Application Scenario
1.Residential and Commercial Buildings
Residential Electrical Protection: In ordinary residential houses, MCBs are used to protect circuits for lighting, sockets, air conditioners, water heaters, and other appliances. If a short circuit or overload occurs in an appliance, the MCB can shuts off the power quickly , preventing overheating and fires from wires, ensuring the safety of people and property.
Commercial Space Protection: In commercial space like office building, shopping mall, and hotel, MCBs are used to protect circuits for various office equipment, lighting systems, and air conditioning systems. The MCBs can prevent circuit overloads and short circuits quickly which is caused by equipment failure or human error, ensuring the safety of people and property.
2.Industrial Sector
Small Equipment Protection: In industrial production, many small equipment and machinery require MCBs for circuit protection. For example, small machine tools and power tools require MCBs to prevent damage from abnormal current flow during operation, extending their service life.
Control Circuit Protection: In complex industrial control systems, MCBs are used to protect the normal operation of control circuits. They ensure that power is promptly cut off in the event of a fault, preventing damage to the control system and thus ensuring the stability and safety of the entire industrial process.
3.Lighting Systems
Public Lighting: In public lighting spaces like street lighting, square lighting, and park lighting, MCBs are used to protect lighting circuits. MCBs can prevent short circuits and overloads which is caused by lamp failures or aging wiring, ensuring the reliability of the lamps and providing a safe nighttime environment.
Large Indoor Lighting: MCBs also is important in the indoor lighting systems of large buildings, like shopping malls, stadiums, and exhibition halls. They protect lighting circuits stably, preventing electrical failures that can occur due to a large number of lamps and complex wiring, and ensuring the normal operation of indoor lighting.
4. Low-Voltage Power Distribution System
Core Component of Distribution Boxes: In low-voltage power distribution systems, MCBs are standard features in distribution boxes and cabinets. They provide independent protection and control for each branch circuit and can be flexibly configured based on actual power load. They are key to achieving intelligent power distribution management and comprehensive system protection.
A safety benchmark for temporary power use: Construction sites, outdoor activities, and other temporary power-using environments present complex electrical environments and numerous potential safety hazards. MCBs provide essential safety protection for these temporary equipment and lines, ensuring proper operation even in these complex power-using environments and minimizing electrical safety incidents.
