Why Choose the ABB MR102B Busbar Module Expansion 1PW?
The ABB MR102B is a CombiLine N horizontal busbar expansion module designed for structured fused distribution within low-voltage electrical cabinets. Supplied under ABB order code 2CPX041409R9999, the module is mounted and installed for cabinet integration and uses a compact 1PW / single-field-width configuration.
The MR102B measures 300 mm high × 250 mm wide, provides 24 space units and is equipped with five D02 bus-mounting fuse sockets. The module uses a horizontal 3-pole busbar system with a 60 mm busbar centre distance and is rated for a maximum current of 250 A.
Designed for cabinets from 120 mm depth, the MR102B incorporates ABB ZX146 busbar holders and supports up to three copper busbars, which are ordered separately. Plastic covers with equipment cut-outs, 90-degree press-and-turn closures and a RAL 7035 finish provide a practical cabinet-ready arrangement for professional sub-distribution assemblies.
Key Advantages
- Factory-equipped with five D02 bus-mounting fuse sockets.
- Horizontal 3-pole busbar system for structured fused distribution.
- Maximum rated current of 250 A.
- Compact 1PW / 250 mm field width for efficient cabinet utilisation.
- Uses ABB ZX146 busbar holders with a 60 mm busbar centre distance.
- Compatible with both EDF and WR mounting frames.
Key Features
- ABB CombiLine N interior expansion system.
- Horizontal 60 mm busbar system.
- Equipped with 5 D02 bus-mounting fuse sockets.
- Designed for 3-pole busbars.
- Busbar centre distance: 60 mm.
- Maximum of 3 copper busbars.
- Rated current up to 250 A.
- 2 RE / 300 mm module height.
- 1 FB / 250 mm field width.
- 24 space units.
- ABB ZX146 busbar holders.
- 32 mm spacing between copper rail and cover.
- Plastic cover with equipment cut-out.
- 90-degree press-and-turn closure.
- RAL 7035 cover finish.
- Suitable for cabinets from 120 mm depth.
Integrated Horizontal Busbar and D02 Fuse Distribution
The ABB MR102B combines a 60 mm horizontal 3-pole busbar system with five vertically installed D02 bus-mounting fuse sockets. This provides an organised fused distribution section within the CombiLine N system while keeping the complete arrangement within a single 250 mm-wide cabinet field.
ABB ZX146 busbar holders support the copper rails, with 32 mm clearance between the copper rails and cover. The module is supplied mounted for cabinet installation, while the required copper busbars and appropriate EDF or WR mounting frame must be selected separately to complete the assembly.
Typical Applications
- Low-voltage sub-distribution cabinets.
- ABB CombiLine N distribution assemblies.
- D02 fuse-protected outgoing circuits.
- Horizontal busbar distribution sections.
- Commercial and industrial electrical switchboards.
- Professional panel-building and electrical distribution projects.
