Enhanced Safety and Protection
User-Friendly Operation and Maintenance
Integrated Digital Intelligence
High Performance with Type-Tested Assembly (TTA)
Modular and Flexible Design
MDmax ST Low Voltage Switchgear | ABB Technology
- ABB MDmax ST Licensed Low Voltage Switchgear
- Modular Design for Flexible Configuration
- Robust and Durable Cabinet Structure
- High-Density Withdrawable Functional Units
- Versatile Power Distribution Applications
Product Overview
The MDmax ST Low Voltage Switchgear is a modular power distribution system manufactured by Guangdong Haocheng Electric based on licensed technology from ABB. Designed for modern industrial and commercial power networks, the switchgear adopts a modular structural concept using standardized components to achieve compact layout, flexible configuration, and reliable performance.
The system can be configured as fixed type, fixed partition type, or withdrawable drawer type switchgear, allowing engineers to design customized distribution solutions for different project requirements. Its modular architecture improves installation efficiency while simplifying maintenance and future system expansion.
Key Features
Technical Parameter
MDmax ST Low Voltage Switchgear Technical Parameters
| Item | Specification |
| Rated Voltage | Up to 690VAC (can be customized) |
| Rated Current (Busbar) | Up to 6300 A |
| Frequency | 50 Hz / 60 Hz |
| Rated Insulation Voltage | 1000 VAC |
| Overvoltage category | Up to Ⅳ |
| Rated Impulse Withstand Voltage | Up to 12 kV |
| Brand | HONCON |
Standards & Compliance
MDmax ST Low Voltage Switchgear complies with:
- IEC 61439-1 / 61439-2– Low-voltage switchgear assemblies
- IEC 60947 – LV switching devices
- IEC 60529 – IP protection
- ISO 9001 / 14001 / 45001
Configuration Options
MDmax ST Low Voltage Switchgear
- Rated Voltage: 400 V AC (up to 690 V AC rated operating voltage)
- Rated Current: 1000 – 4000 A (main busbar up to 6300 A)
- Busbar: High-conductivity copper busbars, horizontally mounted at the top of the cabinet; configurable single, double, triple, or quadruple busbar arrangement depending on current rating.
- Main Devices: Compatible with air circuit breakers (ACB), molded case circuit breakers (MCCB), motor starters, protection relays, and other standard low-voltage distribution devices.
- Enclosure: Powder-coated steel or stainless steel
- Protection Level: IP3X–IP4X
- Installation: Indoor installation; modular cabinet design suitable for floor-mounted lineup installation in electrical distribution rooms.
FAQ
Q1: What is the MOQ of the order?
A1: One set.
Q2: Do you support custom voltage or capacity?
A2: Absolutely. We can design transformers according to your project specifications.
Q3: How long is your delivery time?
A3: It depends on the order quantity and generally it takes about 25-30days after the deposit is received.
Q4: Which market do you usually sell?
A4: Middle East, Africa, Europe, Asia, etc.
Q5: How long is the warranty?
A5: Within 12 months from sale date.
Q6: What is the advantage of MDmax ST Low Voltage Switchgear and how to get price?
A6: Please feel free to contact us and find our blog for more details: LV Switchgear Market and ABB MDmax Advantages