HJ-WDB Series Wall-Mounted Distribution Box

Name: HJ-WDB Series Wall-Mounted Distribution Box
Brand: HJATIS

The HJ-WDB Series is a wall-mounted terminal distribution box for final circuits, lighting and small motor loads. Catalogue configurations cover currents up to 250A, IP20 to IP65 enclosures and cold-rolled or stainless-steel construction.

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HJATIS

PUBLISHED PRODUCT DATA

Catalogue ratings and configurations.

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Technical Specifications

Technical Specifications
Electrical Parameters
Standards referenced in the source catalogue	IEC 61439-1 / IEC 61439-3
Rated Operational Voltage (Ue)	Up to 500V AC
Rated Current (In)	≤ 250A
Rated Frequency	50 Hz / 60 Hz
Wiring System Configurations	3-Phase 3-Wire / 3-Phase 4-Wire / 3-Phase 5-Wire
Enclosure Protection Degree	IP20 / IP40 / IP43 / IP54 / IP65 (Model dependent)
Installation Types	Wall-Mounted (Surface exposed / Flush concealed)
Enclosure Material & Thickness	Cold-Rolled Steel / Stainless Steel (1.2mm or 1.5mm)
Door Configuration	Single Door (Metal/Window) / Double Door (for outdoor)

CONFIGURATION

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ParameterCatalogue indicationProject input required

01Rated Current (In)≤ 250ASpecify maximum load current in amperes.

02Rated Operational Voltage (Ue)Up to 500V ACSpecify system voltage (e.g., 230V, 400V).

03Enclosure Protection DegreeIP20 / IP40 / IP43 / IP54 / IP65 (Model dependent)Select IP rating based on installation environment.

04Wiring System Configurations3-Phase 3-Wire / 3-Phase 4-Wire / 3-Phase 5-WireSpecify wiring configuration (e.g., 3-phase 5-wire).

05Enclosure Material & ThicknessCold-Rolled Steel / Stainless Steel (1.2mm or 1.5mm)Choose material and thickness based on corrosion resistance needs.

STANDARDS & REPORTS

Standards and product documents.

Applicable references: GB/T 7251.3-2017 (when operated by ordinary persons; verify) and IEC 61439-1 / IEC 61439-3 (when applicable; verify). Ask for the edition and reports covering the model offered; a standard number alone does not confirm product compliance.

PRODUCT DOCUMENTSProduct documents available

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APPLICATIONS

Questions for your application.

Industrial power distribution

How many incomers, feeders and motor starters are needed? A circuit schedule helps us prepare the lineup.

Critical buildings and infrastructure

What must stay powered during maintenance? Share the source and bus-coupler arrangement with your enquiry.

TECHNICAL LIBRARY

Product documents

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All documents

Standards-change verification2024

HJ-WDB — Standards-change verification

Reported model JXF

400/230 V / 10-400 A / IP30

Report no.: 02501-24DQ5201
Test basis: GB/T 7251.2-2023

Standard-update verification with earlier tests included. The earlier report marks short-circuit testing as not performed.

65 pages·8.2 MB·English guide + Chinese original

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The English guide is prepared by HJATIS; it is not a laboratory translation or an IEC certificate. Results apply to the tested sample and configuration. The original report and its stated standard editions govern.