2CPX041737R9999 ABB MBS124 Busbar Module Expansion 1PW

Why Choose the ABB MBS124 Busbar Module Expansion 1PW?

The ABB MBS124 is a CombiLine horizontal busbar expansion module designed for structured power distribution within compatible ABB low-voltage distribution cabinets. Supplied under ABB order code 2CPX041737R9999, it forms part of the ABB DESUJ Sub Distribution product group and provides the supporting components required to integrate a horizontal copper busbar system into a CombiLine assembly.

Designed for a 1-panel-width (1PW) configuration, the MBS124 measures 300 × 250 × 200 mm and provides 24 space units. It supports a horizontal busbar system with a 40 mm busbar centre distance, accommodates up to 5 copper busbars and is supplied with ZB5 busbar holders and the associated busbar system arrangement.

The MBS124 supports a maximum rated current of 360 A and is intended for 5-pole busbar configurations. The required copper busbars are ordered separately, allowing the installation to be configured using compatible rail dimensions. Closed RAL 7035 plastic covers with 90-degree press-and-turn fasteners provide a protected finished installation, while the EDF or WR mounting frame is also ordered separately.

Key Advantages

• Purpose-designed horizontal busbar module for ABB CombiLine distribution assemblies.
• Supports rated currents up to 360 A.
• Accommodates a maximum of 5 copper busbars for a 5-pole system.
• 40 mm busbar centre spacing provides a structured compact distribution arrangement.
• Includes ZB5 busbar holders for secure rail positioning.
• 1-panel-width (1PW) format integrates into compact CombiLine cabinet layouts.

Key Features

• ABB MBS124 CombiLine busbar module.
• 1-panel-width (1PW) configuration.
• 2 grid units / 300 mm module height.
• 250 mm module width.
• 200 mm module depth.
• 24 space units.
• Horizontal busbar orientation.
• 5-pole busbar system.
• Maximum 5 copper busbars.
• 40 mm busbar centre distance.
• ZB5 busbar holders.
• Maximum rated current of 360 A.
• Closed RAL 7035 plastic covers with 90-degree press-and-turn fastening.
• Copper busbars and mounting frame ordered separately.

Compact Horizontal Busbar Distribution up to 360 A

Horizontal busbar systems provide a robust method of distributing electrical power through low-voltage switchboard and sub-distribution assemblies. The ABB MBS124 provides the supporting structure for a 5-pole system with busbars positioned at 40 mm centres, allowing compatible copper rails to be arranged securely within a compact 1PW CombiLine field.

The module can accommodate up to five copper rails, with compatible 12 × 5 mm rails suitable for lower-current configurations and 12 × 10 mm rails supporting applications up to the module's maximum 360 A rating. Because the copper busbars are ordered separately, the busbar arrangement can be selected to suit the required distribution capacity while retaining the standardised CombiLine mounting system.

Typical Applications

• ABB CombiLine low-voltage distribution cabinets.
• Horizontal power distribution busbar systems.
• 5-pole low-voltage distribution arrangements.
• Commercial and industrial sub-distribution boards.
• Switchboard power distribution up to 360 A.
• Professional panel-building and system integration projects.