Overview
The SYF1-Q-S/L low-voltage cable distribution box is made of SMC composite material through high-temperature compression molding. It offers excellent impact resistance, flexural strength, aging resistance, abrasion resistance, corrosion resistance, aesthetic appearance, durability, easy installation, high insulation strength, arc resistance, and high flame retardancy. It can meet the needs of various harsh environments and locations in outdoor engineering projects. The box can be equipped with fuse-switch disconnectors, molded case circuit breakers, bar-type switches, and busbar systems. It is suitable for power transmission and distribution in urban and rural power grid renovation, municipal engineering, residential communities, high-rise buildings, and other public places, serving as control and protection for dry-type cable distribution and branch lines.
Technical Parameters
Rated operating voltage: AC3800V
Rated operating frequency: 50Hz (60Hz)
Rated insulation voltage: AC800V
Rated operating current: 100A, 200A, 400A, 630A, 800A, 1000A
Rated short-circuit strength: 50kA
Enclosure protection rating: IP44
The busbars inside the box are copper bars, and the insulation uses dedicated supports made of high-quality compression-molded resin. The distribution box uses copper bars and matching insulation supports, with specifications as follows:
200A Copper bar 30*3 With dedicated insulation support
400A Copper bar 40*4 With dedicated insulation support
630A Copper bar 50*5 With dedicated insulation support
800A Copper bar 60*6 With dedicated insulation support
Product Features
The enclosure structure is designed to be compact while meeting creepage distance requirements, featuring a refined appearance, small size, light weight, and easy installation;
The enclosure has high insulation resistance and high power-frequency dielectric strength. As the housing of electrical equipment, it provides a high safety factor and is the preferred product for power grid renovation;
It has good corrosion resistance, capable of withstanding corrosion from dilute acids, alkalis, and salts, and has strong resistance to various oils, organic solvents, and seawater;
It has good aging resistance, with a service life of over 30 years;
It has good impact resistance and machinability, and is not easily damaged;
The enclosure insulation requires no grounding, making installation convenient and saving significant manpower and material resources;
The box is equipped with dedicated insulation supports inside, and the door is fitted with a dedicated lock (supplied with a second padlock).












