Why Choose the ABB MBA630ALA OT Module Expansion?
The ABB MBA630ALA is a CombiLine OT switch disconnector module expansion kit designed for use within ABB low-voltage sub-distribution assemblies. Supplied under ABB order code 2CPX041805R9999, it belongs to ABB’s DESUJ Sub Distribution product group and provides a dedicated installation field for high-current ABB OT switch disconnectors.
The MBA630ALA is supplied as an unassembled and unequipped internal installation module for one ABB OT switch disconnector in the OT200E...P–OT630E...P range. It supports 3-pole or 4-pole switch configurations and provides a maximum rated operational current of 630 A. The switch disconnector itself is not included and must be selected separately to suit the required installation.
With a module height of 450 mm, a 2PW field width of 500 mm and 72 space units, the MBA630ALA provides a robust mounting platform for high-current isolation applications. The switch is mounted on a mounting cross beam, the module uses closed plastic covers, and installation requires a compatible WR mounting frame in a cabinet with a minimum depth of 275 mm.
Key Advantages
- Purpose-designed ABB CombiLine module for OT switch disconnectors.
- Suitable for ABB OT200E...P–OT630E...P switch disconnectors.
- Supports both 3-pole and 4-pole switch configurations.
- Maximum rated operational current of 630 A for high-current distribution applications.
- 2PW, 500 mm field width provides a dedicated mounting area for one switch disconnector.
- Mounting cross beam arrangement provides secure integration within compatible ABB CombiLine assemblies.
Key Features
- ABB MBA630ALA CombiLine internal installation module.
- Designed for ABB OT load break / switch disconnectors.
- Unequipped module for installation of 1 switch disconnector.
- Suitable for OT200E...P–OT630E...P devices.
- 3-pole or 4-pole device compatibility.
- 2 panel width (2PW) configuration.
- 3 grid units (3GU).
- 450 mm module height.
- 500 mm field width.
- 72 space units.
- 630 A maximum rated operational current.
- Switch installation on a mounting cross beam.
- Closed plastic cover without device cut-out.
- RAL 7035 light grey finish.
- Suitable for cabinets from 275 mm depth.
- Requires a compatible WR mounting frame, ordered separately.
Reliable OT Switch Disconnector Integration for Electrical Panels
Switch disconnectors provide controlled switching and reliable isolation of electrical circuits in low-voltage distribution systems. A dedicated internal installation module gives the switch a coordinated mechanical mounting position within the distribution assembly while maintaining the structured layout required for professional panel construction.
The ABB MBA630ALA provides a 500 mm-wide, 2PW installation field for one compatible ABB OT switch disconnector with a rated operational current up to 630 A. Its mounting cross beam, closed cover and WR mounting-frame compatibility make it a practical solution for incorporating high-current 3-pole or 4-pole isolation into ABB CombiLine sub-distribution systems.
Typical Applications
- Low-voltage sub-distribution boards.
- ABB CombiLine electrical distribution assemblies.
- Main and sub-main switch disconnector installations.
- Commercial and industrial electrical distribution cabinets.
- High-current circuit isolation and switching applications.
- Panel building requiring ABB OT switch disconnectors up to 630 A.
