Why Choose the ABB MBA800A Switch Module Expansion?
The ABB MBA800A is a CombiLine universal switch module expansion kit designed for high-current switching equipment within ABB low-voltage sub-distribution assemblies. Supplied under ABB order code 2CPX041806R9999, it belongs to ABB’s DESUJ Sub Distribution product group and provides a dedicated installation field for professional switchgear applications.
The MBA800A is supplied as an unassembled and unequipped internal installation module for one universal switch, including compatibility with the ABB OT800E. The module is designed for a maximum rated operational current of 800 A, making it suitable for substantial incoming, outgoing and isolation duties where a robust high-current switching platform is required.
With a height of 600 mm, a 2PW field width of 500 mm and 96 space units, the MBA800A provides 420 mm usable width and 147 mm usable depth for equipment installation. Deep cross beams allow variable positioning of the installed equipment, while the module is designed for use with a separately ordered WR mounting frame in cabinets from 275 mm depth.
Key Advantages
- Purpose-designed ABB CombiLine universal switch module for professional low-voltage distribution assemblies.
- Maximum rated operational current of 800 A for demanding high-current switching applications.
- Provides 420 mm usable equipment width within a 2PW installation field.
- 147 mm usable depth provides substantial space for compatible switching equipment.
- Deep cross beams enable variable equipment positioning within the module.
- Unequipped universal design provides flexibility when configuring compatible switchgear installations.
Key Features
- ABB MBA800A CombiLine internal installation module.
- Designed as a universal switch module expansion.
- Unassembled and unequipped kit.
- Provides installation capacity for 1 universal switch.
- Suitable for installation of an ABB OT800E switch disconnector.
- Suitable for compatible switch disconnectors and power circuit breakers.
- 800 A maximum rated operational current.
- 2 panel width (2PW) configuration.
- 4 grid units (4GU).
- 600 mm module height.
- 500 mm field width.
- 96 space units.
- 420 mm usable equipment width.
- 147 mm usable equipment depth.
- Deep cross beams for variable equipment adjustment.
- Equipment attachment via cage nuts.
- Closed plastic covers with 90-degree press-and-turn fasteners.
- RAL 7035 light grey finish.
- Designed for a WR mounting frame, ordered separately.
Flexible High-Current Switch Integration for Electrical Panels
Universal switch modules provide a flexible mechanical platform for integrating switching and protection equipment into low-voltage distribution assemblies. An unequipped module allows the panel builder to select appropriate compatible switchgear while maintaining a coordinated mounting arrangement, protective cover system and structured internal layout.
The ABB MBA800A combines an 800 A maximum rated operational current with 420 mm usable width, 147 mm usable depth and deep adjustable cross beams. This makes it a practical CombiLine solution for high-current switchgear installations requiring substantial equipment space within a structured 2PW distribution field.
Typical Applications
- Low-voltage sub-distribution boards.
- ABB CombiLine electrical distribution assemblies.
- High-current switch disconnector installations.
- Main and sub-main switching applications.
- Commercial and industrial electrical distribution cabinets.
- Panel building requiring universal switching equipment rated up to 800 A.
