Cable branch box-stainless steel
● Material: stainless steel, cold rolled steel ● Product features: waterproof and rainproof, durable ● Product size and color: support customization
Categories：
Cable Branch Box
Product Overview
Low-voltage cable branch box is widely used in cable distribution network system of cable engineering equipment, mainly power cables and box variable, load switch cabinet, negative a fused combination of electrical cabinet, ring network power supply unit and so on connected, play a tap, branching, relaying or conversion role for the cable network to provide great convenience.
Model Meaning
DFW-cable branch box
□-number of main circuits
□-Number of branch circuits
□ - Cabinet design serial number (A1, A2, B1, B2)
□- Rated current of main circuit
□-Program number
Functional Characteristics
Metal: metal cable transfer box box body is mainly made of stainless steel (304) or cold rolled steel plate processing molding. It has anti-sit corrosion, good sealing performance, beautiful, all-weather protection function, can meet the outdoor engineering projects in a variety of harsh environments and places.
Main technical parameters
No. | Item | Unit | Technical Parameters | |
1 | Box | Structure type |
| Inlet line adopts disconnecting switch, outlet line adopts molded case circuit breaker. |
Installation |
| Outdoor floor-standing type | ||
Box material |
| 304 stainless steel | ||
Shell protection grade |
| IP44 | ||
Box size |
|
| ||
2 | Busbar | Rated operating voltage | V | 400 |
Rated insulation voltage | V | 690 | ||
Rated frequency | Hz | 50 | ||
Rated current | A | 160/250/400/630 | ||
Rated short-circuit withstand current |
| 10kA，1S | ||
Busbar material |
| T2 electrical copper | ||
3 | Isolation switch | Number of poles |
| 3P |
Rated working voltage | V | 400 | ||
Rated insulation voltage | V | 690 | ||
Rated current | A | 160/250/400/630 | ||
Rated short-time withstand current |
| 10kA，1S | ||
4 | Plastic case circuit breaker | Number of poles |
| 3P |
Breaker type |
| Electronic type Configuration of three-stage protection function of the electronic release (long and short delay with the machine well motor start time length) | ||
Rated operating voltage | V | 400 | ||
Rated insulation voltage | V | 690 | ||
Rated current | A | 250/160/400 | ||
Rated ultimate breaking capacity | kA | 50 | ||
Rated operating breaking capacity | kA | 35 | ||
Operating conditions
Name | Unit | Project demand value | |
Filth level |
| III (indoor)/IV (outdoor) | |
Ambient temperature | Ambient temperature | ℃ | -25℃~＋40℃（indoor） |
-25℃~＋45℃（outdoor） | |||
Maximum daily temperature difference | K | 25 | |
Hottest monthly average temperature | ℃ | 30 | |
Maximum annual average temperature | 20 | ||
Humidity | Average daily relative humidity | % | ≤95 |
Monthly average relative humidity | ≤90 | ||
Elevation | M | ≤1000 | |
Solar radiation intensity | W/cm2 | 0.1 | |
Earthquake resistance | Horizontal ground acceleration | m/s2 | 0.2g |
Vertical ground acceleration | m/s2 | 0.15g | |
Sine resonance 3 cycles |
| ≥1.67 | |
Safety Factor | |||
Installation place | Indoor/outdoor | ||
Key words:
Cable branch box
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