Why Choose the ABB MA250ALA OT200/630 Switch Expansion 1PW?
The ABB MA250ALA is a CombiLine N switch-disconnector expansion module designed for ABB OT load-break switches in low-voltage sub-distribution assemblies. Supplied under ABB order code 2CPX041377R9999, it provides an unpopulated modular installation position for compatible OT switching equipment.
As part of the ABB DESUJ Sub Distribution product group, the MA250ALA is designed for professional panel building and structured electrical distribution. It is suitable for ABB OT200E...P to OT630E...P switch-disconnectors in 3-pole or 4-pole configurations, with the device mounted on a dedicated mounting cross beam.
The MA250ALA has a 1PW / 250 mm field width, a height of 300 mm and provides 24 PLE. It is rated for a maximum current of 250 A, can be used from a cabinet depth of 200 mm, and supports both EDF and WR mounting-frame systems.
Key Advantages
- Purpose-designed OT200/630 switch expansion for ABB sub-distribution assemblies.
- 1PW / 250 mm field width for compact modular integration.
- Suitable for compatible ABB OT200E...P to OT630E...P switch-disconnectors.
- Supports 3-pole and 4-pole switching configurations.
- 250 A maximum rated current.
- Compatible with EDF and WR mounting frames for flexible panel construction.
Key Features
- ABB CombiLine N interior expansion module.
- OT200/630 Switch Expansion 1PW configuration.
- Unpopulated for installation of an ABB OT switch-disconnector.
- 2 RE / 300 mm module height.
- 1 field / 250 mm module width.
- 24 PLE installation capacity.
- Closed plastic covers without device cut-out.
- Switch-disconnector mounting on a dedicated mounting cross beam.
Modular OT Switch-Disconnector Integration
The ABB MA250ALA provides a structured installation platform for OT switch-disconnectors within CombiLine N distribution assemblies. Switch-disconnectors provide reliable manual switching and isolation of electrical circuits, making them important components in commercial and industrial low-voltage distribution systems.
Its modular 1PW format, compatibility with EDF and WR mounting systems and accommodation for 3-pole or 4-pole OT devices make the MA250ALA suitable for building maintainable and expandable ABB distribution panels.
Typical Applications
- ABB CombiLine N low-voltage distribution boards.
- OT switch-disconnector installations.
- Commercial and industrial sub-distribution systems.
- Main and sectional isolation within electrical panels.
- Modular switchboards and distribution cabinets.
- Professional panel-building and switchgear applications.