2CPX041376R9999 ABB MA160ALA OT/S750DR Switch Expansion 1PW

Why Choose the ABB MA160ALA OT/S750DR Switch Expansion 1PW?

The ABB MA160ALA is a CombiLine switch expansion module designed for the installation of a compatible load-break switch or selective main circuit breaker within ABB low-voltage distribution cabinets. Supplied under ABB order code 2CPX041376R9999, the module is delivered unpopulated and provides a coordinated mounting arrangement for an ABB OT160-class switch or compatible S750DR device.

The MA160ALA is configured for 1 panel width (1 PW) and 2 raster units (2 RE), giving a module height of 300 mm and field width of 250 mm. It provides 24 space units and a usable equipment width of 216 mm, creating a compact switching field for low-voltage distribution assemblies.

Equipment is mounted on 35 × 15 mm DIN rails, with the module suitable for 3-pole or 4-pole switching arrangements and a maximum rated current of 160 A. Closed plastic covers finished in RAL 7035 use 90-degree press-and-turn closures, while compatibility with both EDF and WR mounting frames supports integration into cabinets from 200 mm depth.

Key Advantages

• Purpose-designed switch expansion module for ABB CombiLine distribution systems.
• Suitable for compatible ABB OT160 load-break switching arrangements or an S750DR selective main circuit breaker.
• Supports 3-pole or 4-pole device configurations.
• Maximum rated current of 160 A.
• Compact 1 PW format occupies only a 250 mm-wide cabinet field.
• 216 mm usable width provides a defined equipment mounting area.
• DIN-rail mounting simplifies compatible device installation.
• Suitable for both EDF and WR mounting-frame systems.

Key Features

• ABB CombiLine internal mounting system.
• 1 panel width (1 PW).
• 2 raster units (2 RE).
• 300 mm module height.
• 250 mm field width.
• 216 mm usable width.
• 24 space units.
• Supplied unpopulated.
• Suitable for ABB OT160-class load-break switch arrangements or S750DR equipment.
• Supports 3-pole or 4-pole configurations.
• 160 A maximum rated current.
• Equipment mounting on 35 × 15 mm DIN rails.
• Closed plastic protective covers.
• RAL 7035 cover finish.
• 90-degree press-and-turn cover closures.

Flexible Switching and Isolation Integration

The ABB MA160ALA provides a coordinated CombiLine mounting platform for integrating switching or selective main protection equipment into a compact distribution field. Its 160 A rating, 216 mm usable width and DIN-rail arrangement make it suitable for constructing incoming or outgoing switching sections without requiring a factory-installed switching device.

Because the module is supplied unpopulated, the appropriate compatible ABB device can be selected according to the finished distribution-board design. The closed protective covers, standardised CombiLine dimensions and compatibility with EDF and WR mounting frames provide a structured solution for professional commercial and industrial panel construction.

Typical Applications

• Low-voltage sub-distribution boards.
• ABB CombiLine distribution assemblies.
• Load-break switch integration.
• Selective main circuit-breaker installations.
• Commercial building electrical distribution.
• Industrial low-voltage distribution panels.
• Incoming or outgoing switching circuits rated up to 160 A.