LV Switchgear
ABB MDmax ST
ABB-licensed MDmax ST digital switchgear with drawers, fixed and movable functional units.
Product Overview
MDmax ST digital low-voltage switchgear is designed for high-density power distribution and motor control in industrial and utility applications. The ABB-licensed system supports drawer, fixed and movable functional units, which makes it flexible for incoming, feeder, metering and motor control arrangements.
The switchgear can be supplied from 1600 A to 6300 A with protection relays, metering, communication and custom busbar configurations. Manufacturing follows IEC 61439 and GB7251 requirements with strict factory testing.
We provide complete engineering support, including single line diagram review, drawings, test reports and export packaging. Commissioning and after-sales support are available for overseas projects. Drawings, test records and material certificates are prepared with each order.
Before production, our engineers review the project single line diagram, protection scheme, metering requirements, cable entry and local grid standard. After approval, we complete factory assembly, routine testing, export packaging and documentation, and provide commissioning and after-sales support after delivery.
Technical Specifications
| Product Model | ABB MDmax ST |
| Product Type | Digital low-voltage switchgear |
| Rated Current | 1600 - 6300 A |
| Rated Voltage | Up to 690 V |
| Rated Frequency | 50 / 60 Hz |
| Standard | IEC 61439 |
| Rated Frequency | 50 / 60 Hz |
| Standards | IEC / GB / CQC / CB |
| Factory Testing | Routine testing before shipment |
| Export Options | Drawer, fixed and movable functional units, protection, metering, busbar and communication |
Applications
Industrial plants use this equipment for main incoming supply, transformer feeders and motor circuits. The assembly is designed for continuous industrial duty and can be customized with protection, metering and control options for process reliability.
Utility substations require reliable switchgear for incoming supply, feeder protection, metering and bus coupling. This product is configured to operate safely under normal and fault conditions, with drawout or fixed units selected according to maintenance requirements.
Data centers need high-reliability switchgear with clear maintenance access and stable protection. This product supports incoming, feeder and redundancy configurations for critical power systems.
Oil and gas projects require dependable electrical equipment in demanding site conditions. We can supply enhanced enclosure protection, anti-condensation heating and customized protection schemes for process plant reliability.
Why Choose Haiyue
We review your single line diagram and confirm the MDmax ST Digital Switchgear configuration, protection and busbar arrangement before production.
Every panel is assembled, wired and routine tested before shipment, with test records included in the delivery documentation.
Switchgear is packed for sea or air freight with drawings, material certificates and shipping documentation.
Commissioning and after-sales support are available. Overseas installation is not included.
Certification & Testing
This product is manufactured according to IEC and GB standards, with CQC and CB certification available for relevant configurations. The factory operates under ISO 9001, ISO 14001 and ISO 45001 management systems.
Before shipment, routine testing includes mechanical operation, insulation and withstand checks, wiring verification and functional protection checks. Type test documentation can be shared after technical qualification.
Procurement & Lead Time
Send your required voltage, current, single line diagram, protection and metering requirements, quantity, destination country and target delivery date. Our engineering team normally responds within 24 hours.
Standard configurations can be produced within 30 working days after drawing and material approval. Custom configurations are confirmed after technical review.
Overseas installation is not included. We provide commissioning support and after-sales technical service based on the project agreement.
FAQ
Drawer units can be withdrawn for maintenance and replacement while keeping the main busbar live. Fixed units are normally lower cost and used where frequent breaker replacement is not required.
Yes. We can integrate protection relays, meters and communication modules for local and remote monitoring.
Standard configurations can be produced within 30 working days after technical approval. Custom schemes are confirmed after review.
We provide drawings, factory test records, material certificates, export packaging details and shipping documentation with each order.
Send your voltage, current, configuration, quantity and destination country to our export team. We review the requirement and normally respond within 24 hours.
Request a Quote
Send your project details to Leo Liu. We review the technical requirement and provide a quotation with drawings, lead time and export documentation list.
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