ABB MDmax ST Authorized Low Voltage Switchgear

Name: ABB MDmax ST Authorized Low Voltage Switchgear
Brand: ABB

The ABB MDmax ST is an authorized low-voltage switchgear system for power distribution and motor control. It supports currents up to 6300 A and short-time withstand ratings up to 100 kA. The system offers flexible module configurations and is designed for integration with ABB Ability™ digital solutions for monitoring and predictive maintenance.

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ABB MDmax ST authorized low-voltage switchgear lineup with branded front panels

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
Electrical & System Parameters
Applicable standards to verify for the offered assembly	IEC 61439-1:2020 / IEC 61439-2:2020 / GB/T 7251.2-2023
Rated Operational Voltage (Ue)	Up to 690V AC
Rated Insulation Voltage (Ui)	1000V AC
Rated Main Busbar Current (In)	Up to 6300A
Withstand & Protection Ratings
Rated Short-Time Withstand Current (Icw)	Up to 100kA (1s)
Rated Peak Withstand Current (Ipk)	Up to 220kA
Form of Internal Separation	Form 1, 2b, 3b, up to Form 4b
Installation / Module Types	Withdrawable / Fixed / Mixed modules (in a single cubicle)
Enclosure Protection Degree	IP30 / IP31 / IP40 / IP41 / IP54

CONFIGURATION

Select your configuration.

Tell us which ratings and options you need.

ParameterCatalogue indicationProject input required

01Rated Operational Voltage (Ue)Up to 690V ACSpecify required operational voltage.

02Rated Main Busbar Current (In)Up to 6300ASpecify required busbar current rating.

03Rated Short-Time Withstand Current (Icw)Up to 100kA (1s)Specify required short-circuit withstand rating.

04Form of Internal SeparationForm 1, 2b, 3b, up to Form 4bSelect required form of separation.

05Enclosure Protection DegreeIP30 / IP31 / IP40 / IP41 / IP54Specify required IP rating.

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 DOCUMENTSAsk about availability

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Compare GB and IEC references ↗Your StandardBridge inputs and results are not attached to a sales enquiry automatically.

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.

REQUEST A QUOTATION

Send the SLD, specification or BOQ.

Include the system voltage, fault level, service conditions and delivery scope for a model selection and document list.

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ABB MDmax ST Authorized Low Voltage Switchgear

Technical Specifications

Standards and product documents.

Industrial power distribution

Critical buildings and infrastructure

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Send the SLD, specification or BOQ.