Why Choose the ABB MBK307 Terminal Expansion 3PW?
The ABB MBK307 is a CombiLine terminal expansion module designed for the organised installation of horizontal terminal blocks within compatible ABB low-voltage distribution cabinets. Supplied under ABB order code 2CPX041687R9999, it forms part of the ABB DESUJ Sub Distribution product group and provides a dedicated DIN-rail mounting solution for professional terminal and wiring applications.
The MBK307 is supplied as an unassembled interior fitting kit and incorporates 2 horizontal DIN rails measuring 35 × 15 mm. The rails include perforations for wire holders and are supported by an additional stabilisation profile due to the module's 3-panel-width format. Stepless depth adjustment through the mounting brackets provides a usable terminal depth of approximately 68–145 mm.
Designed for a 3-panel-width (3PW) configuration, the MBK307 has nominal dimensions of 300 × 750 × 200 mm, provides 72 space units and offers a usable terminal width of approximately 688 mm. Closed RAL 7035 plastic covers and 90-degree press-and-turn fasteners provide a neat finished installation, with the module suitable for cabinets from 200 mm depth.
Key Advantages
- Purpose-designed terminal expansion module for horizontal terminal blocks.
- 3-panel-width (3PW) format provides substantial terminal capacity.
- 2 horizontal 35 × 15 mm DIN rails for terminal mounting.
- Approximately 688 mm usable terminal width.
- Stepless depth adjustment provides approximately 68–145 mm usable depth.
- Additional stabilisation profile supports the wide DIN-rail arrangement.
Key Features
- ABB MBK307 CombiLine terminal block module.
- 3-panel-width (3PW) configuration.
- 2 grid units / 300 mm module height.
- 750 mm module width.
- 200 mm module depth.
- 72 space units.
- 2 horizontal DIN rails.
- 35 × 15 mm perforated DIN rails for terminal blocks and wire holders.
- 150 mm row spacing.
- Stepless depth adjustment via mounting brackets.
- Approximately 68–145 mm usable depth.
- Approximately 688 mm usable width.
- Closed RAL 7035 plastic covers with 90-degree press-and-turn fasteners.
Organised Terminal Distribution for Control Cabinets
Terminal expansion modules provide a structured method of mounting terminal blocks and organising field wiring within electrical distribution cabinets. Horizontal DIN rails allow terminals to be arranged in accessible rows, while adequate wiring depth and cable management provisions help maintain an orderly and serviceable installation.
The ABB MBK307 combines two horizontal DIN rails with a generous 688 mm usable width and stepless depth adjustment. Its 3PW format and additional rail stabilisation make it particularly suitable for larger terminal arrangements in professional CombiLine distribution assemblies.
Typical Applications
- ABB CombiLine low-voltage distribution cabinets.
- Horizontal terminal block installations.
- Electrical sub-distribution assemblies.
- Industrial and commercial switchboards.
- Control and field wiring termination.
- Professional panel-building and system integration projects.
