HJ-MNS Series Withdrawable LV Switchgear

Name: HJ-MNS Series Withdrawable LV Switchgear
Brand: HJATIS

The HJ-MNS Series is a modular withdrawable low-voltage switchgear and motor control centre (MCC) with catalogue ratings up to 6300 A and 100 kA short-time withstand. Its C-profile frame and withdrawable functional units support circuit replacement and maintenance planning. Typical applications include power plants, industrial facilities, data centres and marine electrical systems.

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HJATIS

PUBLISHED PRODUCT DATA

Catalogue ratings and configurations.

The project data sheet should state the selected rating, options and site conditions.

Technical Specifications

Technical Specifications
Standards referenced in the source catalogue	IEC 61439-1 / IEC 61439-2
Rated Operational Voltage (Ue)	400V / 690V AC
Rated Insulation Voltage (Ui)	1000V AC
Rated Main Busbar Current (In)	Up to 4000A / 5000A / 6300A
Short-Time Withstand Current (Icw)	50kA / 65kA / 80kA / 100kA (1s)
Peak Withstand Current (Ipk)	105kA / 176kA / 220kA
Form of Internal Separation	Form 2b, 3b, 4a, 4b
Drawer / Module Sizes	8E/4, 8E/2, 8E, 16E, 24E / (Up to 36 circuits per cabinet)
Enclosure Protection Degree	IP30 / IP40 / IP54

CONFIGURATION

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ParameterCatalogue indicationProject input required

01Rated Operational Voltage (Ue)400V / 690V ACSpecify required voltage (e.g., 400V or 690V).

02Rated Main Busbar Current (In)Up to 4000A / 5000A / 6300ADefine maximum continuous current required.

03Short-Time Withstand Current (Icw)50kA / 65kA / 80kA / 100kA (1s)Select withstand rating based on system fault level.

04Form of Internal SeparationForm 2b, 3b, 4a, 4bChoose form of separation per safety and maintenance needs.

05Enclosure Protection DegreeIP30 / IP40 / IP54Specify IP rating based on environment (e.g., IP54 for dusty areas).

STANDARDS & REPORTS

Standards and product documents.

Applicable references: GB/T 7251.2-2023 and IEC 61439-1:2020 / IEC 61439-2:2020. 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

Check the tested model and ratings before using a report for your project.

All documents

Standards-change verification2024

HJ-MNS — Standards-change verification

Reported model MNS

400 V / 400-1600 A / 30 kA

Report no.: 02501-24DQ5203
Test basis: GB/T 7251.2-2023

Standard-update verification with the earlier test report included. Not a new full test campaign.

84 pages·65.3 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.