Why Choose the ABB MBS128 Busbar Module Expansion 1PW?
The ABB MBS128 is a modular vertical busbar module expansion designed for ABB low-voltage sub-distribution assemblies. Part of the ABB CombiLine system and DESUJ Sub Distribution range, this unassembled kit provides a structured four-pole copper busbar system for distributing power within compatible electrical cabinets.
The MBS128 incorporates four 30 × 5 mm copper busbars arranged vertically with a 40 mm busbar centre distance. The bars are supported by ABB ZX518 busbar holders and provide a maximum rated current of 440 A, making the module suitable for robust low-voltage distribution applications.
Configured for 1 panel width (1PW), the MBS128 measures 300 × 250 × 200 mm and provides 24 space units. It can be expanded on compatible EDF or WR mounting frames and is designed for use in cabinets with a minimum depth of 200 mm.
Key Advantages
- Purpose-designed vertical busbar module for ABB CombiLine systems.
- 440 A maximum rated current for low-voltage power distribution.
- Four-pole 30 × 5 mm copper busbar system.
- Compact 1PW configuration for modular cabinet construction.
- ZX518 busbar holders provide secure support for the copper rails.
- Compatible with both EDF and WR mounting frame expansion systems.
Key Features
- ABB CombiLine busbar module.
- Busbar module expansion 1PW.
- Four-pole vertical busbar arrangement.
- 4 × 30 × 5 mm copper busbars.
- 440 A maximum rated current.
- 40 mm busbar centre distance.
- ABB ZX518 busbar holders.
- 24 space units.
- Closed plastic cover in RAL 7035.
- ABB order code 2CPX041648R9999.
Reliable Power Distribution for Modular Cabinets
Busbar modules such as the ABB MBS128 provide a structured low-resistance path for distributing electrical current through low-voltage distribution assemblies. Its four vertically aligned copper rails support an organised power distribution architecture while helping simplify cabinet construction, connection and maintenance.
The ABB CombiLine modular system enables panel builders to combine compatible internal fitting modules according to the required distribution layout. The MBS128 provides a compact one-panel-width vertical busbar section that can be integrated with compatible EDF or WR mounting structures.
Typical Applications
- Low-voltage electrical distribution boards.
- ABB CombiLine cabinet systems.
- Commercial and industrial power distribution.
- Electrical panel and switchgear construction.
- Four-pole busbar distribution systems.
- Modular sub-distribution assemblies.
