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DFW-12 Cable branch box

DFW-12 Cable branch box

  • ●Fully insulated and fully sealed structure ensures personal safety; ●Outdoor type, dustproof, moisture-proof, flood-resistant, corrosion-resistant, and strong environment...
  • Product overview
  • Model and features
  • Technical parameter
  • Overall dimension

Product overview

Fully insulated and fully sealed structure ensures personal safety;

Outdoor type, dustproof, moisture-proof, flood-resistant, corrosion-resistant, and strong environmental adaptability;

Flexible combination, from two to six incoming and outgoing lines, meeting a variety of wiring requirements;

Small size, compact structure, beautiful appearance, simple installation and maintenance-free;

Chargeable display;
Can be equipped with short circuit indicator;
Can bring lightning arrester.
This product complies with GB/T11022 "Common technical requirements for high-voltage switchgear and control equipment standards", GB11033.1~3 "Basic technical requirements for power cable accessories with rated voltage below 35kV", JB/T1084 0-2008 "3.6kV~40.5kV high-voltage AC metal-enclosed cable tap-changer equipment" and GB39062006 "3.6kV~40.5kV AC metal-enclosed switchgear and control equipment" standards.

Model and features



Normal service conditionsNormal service conditions

 Ambient temperature: upper limit +40°C, lower limit -15°C (with special technology, up to -45°C);
 Altitude does not exceed 2500m (with special technology, up to 4000m);

 Relative humidity: the daily average value is not greater than 95%, and the monthly average value is not greater than 90%;

 Installation site: A place without fire, explosion hazard, chemically corrosive gas and well-ventilated, and the ground inclination angle is not more than 3°;

Note: When the above normal usage conditions are exceeded, the user can negotiate with the manufacturer to determine.

Technical parameter


Main technical data of thecable distribution boxes

名称Description 单位Unit 参数Specifications
定电Rated voltage KV 12
定电Rated current A 630
频率Rated frequency Hz 50
时耐Rated short-time withstand current KA/s 20/3
峰值耐受Rated peak withstand current KA 50
lmin频耐受
Rated powerfrequencywithstand voltage(lmin)
kV 45
击电压(峰值)
Rated lighting impulsewithstand voltage
kV 105
联接点电阻Contact Resistance 40
导体工作温度Conductor temperature ≤95
局部放Partial discharge ≤10pc/13kV
潮湿试验Humty test 11KV/100h通过
用电Cable type XLPE
用电缆截Wire range mm2 25~400
适用环境温度Ambient airtemperature -40~50
海拔离度Altitude m 3000

Overall dimension