Outdoor Cable Branch Box: DFW-12
In structural design, the DFW-12 branch box is constructed with premium stainless steel or composite insulation materials, delivering exceptional corrosion resistance, waterproofing, and weather resistance. It withstands prolonged exposure to harsh outdoor conditions like high temperatures, humidity, and salt spray, ensuring stable equipment operation in complex climates. The interior features insulated busbars and silicone rubber cable connectors, forming a fully insulated and sealed structure that effectively prevents dust and moisture intrusion. This significantly reduces short-circuit and leakage risks, guaranteeing safe and reliable operation.
This branch box features a compact modular design with flexible installation, enabling rapid connection and branching of multiple cables to significantly simplify wiring processes. The product incorporates reserved interfaces for accessories like surge arresters and fault indicators, facilitating functional expansion for diverse application scenarios. Its user-friendly design balances operational safety and maintenance convenience, incorporating anti-misoperation mechanisms and safety warning signs to minimize human error risks. The DFW-12 branch box not only enhances the adaptability and scalability of power distribution systems but also reduces lifecycle costs through maintenance-free features, making it an ideal choice for smart grid development.
Project |
Unit |
numerical value |
Rated Voltage |
KV |
12 |
Rated Current |
A |
630 |
Power Frequency Withstand Voltage (Relative to Earth) |
KV |
42 |
Lightning Impulse Withstand Voltage |
KV |
75 |
Rated Interrupting Current |
KA |
630 |
rated short circuit current (Peak) |
KA |
50 |
Rated Short-Time Withstand Current |
KA/S |
25/4 |
Rated Peak Withstand Current |
KA |
50 |
Rated Capacitive Current Interrupting Current |
A |
45 |
Rated Inductive Current Interrupting Current |
A |
16 |
Full Load Break Opening Times |
number of times |
>100 |
Opening/Closing Mechanical Operation Times |
number of times |
2000 |
Project |
Unit |
numerical value |
Rated Voltage |
KV |
24 |
Rated Frequency |
Hz |
50/60 |
Lightning Impulse Withstand Voltage (Peak) |
KV |
Phase-to-phase: 60; Isolation break: 79 |
1min Power Frequency Withstand Voltage（effective value ） |
KV |
Phase-to-phase:125; Isolation break: 145 |
Auxiliary control circuit withstand voltage at power frequency |
V |
200 |
Rated Current |
A |
630,1250,1600,2000,2500,3150 |
Rated Short-Circuit Interrupting Current |
KA |
20/31.5 |
Rated Short-Circuit Closing Current (Peak) |
KA |
50/80 |
Rated Short-Time Withstand Current |
KA |
20/31.5 |
Rated Peak Withstand Current |
KA |
50/80 |
Auxiliary Control Circuit Rated Voltage |
V |
DC or AC 110/220 |
Protection Degree |
- |
IP4X（The circuit breaker room door is open or the compartment is IP2X.）IP4X |
External Dimensions (Width×Depth×Height) |
MM |
800×1810×2380/1000×1810×2380 |
Weight |
Kg |
840-1440 |
Adopting prefabricated electrically live touchable silicone rubber cable heads, it is fully sealed, fully insulated, and maintenance-free, reliably ensuring personal safety; with a compact structure, a small and elegant appearance, and a stainless steel double-layer housing, the service life can reach more than 20 years; under the premise of not affecting the main grid operation, it realizes regional power outage maintenance and reduces the power outage range; one or more SF6 load switches can be configured. The wiring method is flexible and diverse, with up to 8 branch circuits; lightning arresters, short-circuit fault indicators, current-limiting fuses, etc. can be selected to meet various user requirements.
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