Products Distribution Box

3-Phase 4-Way Power Distribution Board/Cabinet

Material: carbon steel
Color: Gray
Place of Origin: Shanxi, China
Application: Industrial
Product Category: Distribution Box

This product is a multi‑circuit power distribution device specially designed for three‑phase four‑wire low‑voltage power distribution systems. It features a rated voltage of AC 380 V / 400 V and rated current ranging from 16 A to 250 A, with three‑phase four‑wire / five‑wire wiring configuration. It distributes one incoming three‑phase power supply into four independent output circuits, each equipped with individual overload and short‑circuit protection. The enclosure is made of high‑quality cold‑rolled steel or stainless steel, with an ingress‑protection rating of IP30‑IP55. Boasting compact structure and well‑organized wiring, it enables easy installation and maintenance, and is widely used for terminal power distribution in industrial, commercial and building applications.

Rated Voltage: AC 400 V / 415 V, 50 Hz / 60 Hz
Phase Configuration: Three‑phase four‑wire / five‑wire
Main Switch Rated Current: 125 A ~ 250 A
Output Circuits: 4 circuits, rated current per circuit: 16 A ~ 63 A
Ingress Protection Rating: IP30 (standard) / IP55 (optional)
Compliance Standards: IEC 61439‑1, GB/T 7251
Built‑in Earth‑Leakage Protection Device: Optional
Busbar Rated Current: 125 A ~ 250 A
Mechanical Endurance: ≥ 10 000 operations

① Balanced three‑phase power distribution. The three‑phase power supply is evenly distributed across four output circuits, reducing grid losses caused by unbalanced single‑phase loads and improving power‑distribution efficiency.

② Independent circuit protection. Each outgoing circuit is fitted with a separate circuit breaker. A fault in one circuit will not disrupt the operation of others, delivering high power‑supply reliability.

③ Compact structure. The modular, space‑saving design supports easy installation in wall‑mounted or floor‑standing modes to fit diverse spatial requirements.

④ High ingress‑protection performance. The standard version reaches IP30, with IP55 as an optional upgrade, offering dust‑proof and splash‑proof performance for various indoor and outdoor environments.

⑤ Strong expandability. Additional circuits can be configured upon request. Functions such as metering and surge protection can also be integrated to achieve a high degree of customization.

‑ Power distribution for machine tools and power‑driven equipment in industrial workshops
‑ Power supply for lighting, air‑conditioning and socket circuits in shopping malls and office buildings
‑ Temporary power distribution for construction sites
‑ Terminal power distribution for server cabinets in data centres
‑ Power supply for equipment in agricultural greenhouses and livestock farms
‑ Power distribution for small‑scale outdoor equipment at ports and wharves

Q1: What does “four circuits” mean for this three‑phase four‑wire distribution panel?
A: It refers to four independent three‑phase output circuits within the panel. Each circuit provides separate control and protection, and can supply power to four sets of three‑phase equipment or multiple clusters of single‑phase loads simultaneously.

Q2: What is the maximum current capacity of this distribution panel?
A: The main switch of the standard unit supports a maximum rated current of 250 A, and each output circuit is rated up to 63 A. Higher‑current specifications are available upon custom request.

Q3: Is earth‑leakage protection supported?
A: Yes. Earth‑leakage circuit breakers can be installed on individual output circuits or the main incoming circuit to implement earth‑leakage protection for scenarios with strict personal‑safety requirements.