Why Choose the ABB MA400ALAB OT400E03P Switch Expansion 2PW?
The ABB MA400ALAB, order code 2CPX041373R9999, is a populated load break switch expansion module designed for ABB CombiLine low-voltage sub-distribution systems. Supplied mounted for cabinet installation, it incorporates an ABB OT400E03P 3-pole load break switch to provide reliable switching and isolation of electrical circuits within professional distribution assemblies.
Designed for commercial and industrial power distribution, the MA400ALAB has a rated current of 400 A and uses ABB's proven OT switch-disconnector platform. The module is supplied with the switching device installed and features a plastic protective cover with a dedicated equipment cut-out, providing an integrated solution that reduces the amount of component selection and assembly required when building a compatible CombiLine distribution board.
The MA400ALAB occupies 2 panel widths (PW/FB) and 3 grid units (GU/RE), corresponding to dimensions of 450 mm high × 500 mm wide × 215 mm deep and 72 space units (PLE). It can be used from a cabinet depth of 215 mm and is compatible with both EDF and WR mounting frames, which must be ordered separately.
Key Advantages
- Complete 400 A load break switch expansion module for ABB CombiLine systems.
- Supplied populated with an ABB OT400E03P switch-disconnector.
- 3-pole switching for three-phase low-voltage distribution applications.
- 400 A rated current for high-current switching and isolation.
- Switch mounted on a mounting cross beam for secure cabinet integration.
- Provides 72 space units (PLE) within a practical 2-panel-width format.
- Plastic protective cover with equipment cut-out and secure push-turn fastener.
- Compatible with EDF and WR mounting frames.
Key Features
- ABB MA400ALAB load break switch module.
- ABB order code 2CPX041373R9999.
- Part of the ABB CombiLine interior expansion system.
- Populated with ABB OT400E03P load break switch.
- 400 A rated current.
- 3-pole switch configuration.
- Equipment mounted on a mounting cross beam.
- 2 panel widths (PW/FB) and 3 grid units (GU/RE).
- 72 space units (PLE).
- Plastic cover with equipment cut-out.
- 90-degree push-turn cover fastener.
- RAL 7035 light grey finish.
- Suitable for cabinets from 215 mm depth.
- Designed for separately ordered EDF or WR mounting frames.
Load break switches provide a means of manually switching and isolating electrical circuits under normal load conditions. The ABB MA400ALAB integrates an OT400E03P 3-pole switch-disconnector into a modular CombiLine assembly, providing a convenient solution for incorporating a 400 A switching point into compatible low-voltage distribution equipment.
The populated module simplifies distribution-board construction by combining the switching device, mounting arrangement and protective cover within a defined CombiLine format. Its 2-panel-width construction and compatibility with EDF and WR mounting frames make it suitable for modular distribution systems where dependable high-current switching, isolation and efficient cabinet integration are required.
Typical Applications
- Low-voltage electrical distribution boards.
- Commercial and industrial sub-distribution systems.
- ABB CombiLine cabinet assemblies.
- Main and sub-main circuit switching and isolation.
- Three-phase electrical distribution systems.
- Industrial power distribution and machinery supplies.
- Electrical switchgear requiring a 400 A 3-pole load break switch.
