ABB MDmax ST Authorized Low Voltage Switchgear

ABB Authorized / Up to 6300A / 100kA / IoT Ready

The ABB MDmax ST Series is a world-class, fully authorized digital low-voltage switchgear. Manufactured under strict global ABB quality standards, it serves as an intelligent Power Distribution Center (PDC) and Motor Control Center (MCC). By integrating ABB Ability™ digital technologies, it delivers unprecedented safety, reliability, and predictive maintenance capabilities for your most critical infrastructure.

Ideal for Mission-Critical & Premium Projects:

✓ Mega Data Centers (IDC) & Telecommunication Hubs
✓ Rail Transit, Airports & Advanced Infrastructure
✓ Oil & Gas, Petrochemical, and Heavy Metallurgy
✓ High-End Commercial Real Estate & Hospitals

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Core Advantages

Technical Specs

1. Certified ABB Global Quality

As an officially authorized ABB manufacturing partner, every MDmax ST switchgear is built utilizing 100% genuine ABB core components and adheres strictly to ABB's global engineering designs and IEC 61439 standards. You get top-tier international quality combined with our agile localized manufacturing and support.

2. ABB Ability™ Digitalization & IoT Ready

Step into the era of the smart grid. The MDmax ST series features a comprehensive digital solution equipped with smart sensors and cloud-connectivity. It provides real-time condition monitoring, thermal tracking, and predictive maintenance data, drastically reducing unexpected downtime and long-term OPEX.

3. Uncompromised Safety & Arc-Fault Containment

Operator safety is guaranteed. The robust C-profile modular frame offers internal separation up to Form 4b. With an internal arc-fault resistant design, the switchgear strictly isolates and contains any potential faults within designated compartments, protecting both your personnel and adjacent equipment.

4. High-Density & Flexible Configurations

Maximize your electrical room's spatial efficiency. The MDmax ST supports highly flexible modular configurations, allowing withdrawable, fixed, and mixed modules to be installed within the exact same cabinet. This highly dense architecture seamlessly adapts to complex motor control and distribution needs.

ABB-Standard Factory Acceptance & Global Support

We perform rigorous, ABB-audited routine tests on every single panel. For our international EPC partners, we conduct comprehensive Remote Video FAT (Factory Acceptance Test) to ensure 100% compliance with your project blueprints before shipment.

Whether you require a fully assembled CBU (Completely Built Unit) or specialized export packaging for maritime transport, our logistics team ensures your premium ABB switchgear arrives safely and ready for immediate energization.

Technical Specifications

(Note: The MDmax ST is fully compliant with IEC 61439-1/2 standards. Specific parameters will be tailored to your project's single-line diagram.)

Electrical & System Parameters
Compliance Standards	IEC 61439-1 / IEC 61439-2 / GB/T 7251.12
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

Normal Operating Environment

Ambient Temperature: -5°C to +40°C (Average over 24h ≤ +35°C).
Altitude: ≤ 2000m.
Relative Humidity: ≤ 50% at +40°C (Higher humidity allowable at lower temperatures, e.g., 90% at +20°C).
Installation Requirements: Indoor environment without severe dust, chemical corrosion, or intense vibration.