Product Search
Find the right transformer for your needs
LV Cable Distribution Boxes Series Cable Branch Boxes & Switching Stations
5 Models available

Images are for illustration purposes only
LV Cable Distribution Boxes — 400V Power Distribution
Low-voltage (400V) cable distribution boxes distribute power from a transformer or main board to multiple outgoing circuits, with fuses or MCCBs for each way. Rated up to 630A, 400V, IP54 weatherproof enclosure, for building, street-lighting and site distribution.
Applications
Building and site distribution
Street lighting feeder boxes
Construction site temporary power
LV network sectionalizing
Key Features
- 400V low-voltage distribution
- Up to 630A with fused or MCCB ways
- IP54 weatherproof enclosure
- Multiple outgoing circuit configurations
- Compact wall-mount or floor-standing
- Padlockable for public access
Specifications Range
All specifications and dimensions can be customized upon request
Model Selector
| Key parameters | Model Range |
|---|---|
| Rated Voltage | 0.4 |
| Rated Current | 630 A |
| Main Circuits | 4 |
| Short-time Withstand Current | 20 kA |
| Protection Level | IP4X |
| Standard | GB3906, IEC 62271-200 |
| Compare | Model | Series | Rated voltage (kV) | Current (A) | Frequency (Hz) | Insulation | Standard | Weight | Dimensions |
|---|---|---|---|---|---|---|---|---|---|
| FXX-100A | LV Cable Distribution Boxes | 0.4 | 630 | 50 | — | GB3906, IEC 62271-200 | 55 kg | 890×590×1485 mm | |
| FXX-160A | LV Cable Distribution Boxes | 0.4 | 630 | 50 | — | GB3906, IEC 62271-200 | 67 kg | 990×660×1650 mm | |
| FXX-250A | LV Cable Distribution Boxes | 0.4 | 630 | 50 | — | GB3906, IEC 62271-200 | 84 kg | 1115×740×1855 mm | |
| FXX-400A | LV Cable Distribution Boxes | 0.4 | 630 | 50 | — | GB3906, IEC 62271-200 | 111 kg | 1285×855×2145 mm | |
| FXX-630A | LV Cable Distribution Boxes | 0.4 | 630 | 50 | — | GB3906, IEC 62271-200 | 149 kg | 1510×1005×2520 mm |
Product Drawing
Cable Branch Box - FXX-250A
Note: This is a general product illustration. For detailed technical drawings and specifications, please contact our engineering team.
Selection Guide
Ways
Choose the outgoing circuit count and protection type.
Enclosure
Specify IP54 or higher for outdoor installations.
- Frequently Asked Questions
What is an LV cable distribution box?
A low-voltage distribution box splits a 400V feeder into multiple protected outgoing circuits with fuses or MCCBs, typically IP54 weatherproof for outdoor use.
Fused or MCCB?
Fused ways are economical for fixed loads; MCCBs allow reset and higher breaking capacity.
Instant Selection & Quote Calculator
Select your specifications to get an estimated price instantly.
More options(3)
Certification
The values below are computed from what you selected above. Anything that cannot be computed yet is shown as an em dash — never as zero.
Iₙ = S / (√3·U) · I_sc = 100·Iₙ / uₖ · S_sc = √3·U·I_sc · I_p = k·Iₖ
Still required to complete the calculation: rated capacity S, impedance voltage uₖ, short-time or peak withstand current.
Per-model values (P0 / Pk / uₖ declared by the factory, losses, noise, temperature rise, dimensions, weight) are not in the product library: those rows stay at an em dash until the factory parameter sheet is supplied. An em dash means the value is unavailable — it is never rendered as zero.
Reference prices are for estimation only and do not constitute a formal offer.
3 · Get this quote
We will reply with your latest quote instantly.
Related Engineering Calculators
Free sizing and pricing tools for this product category.