Why Choose the ABB MBK308 Terminal Expansion?
The ABB MBK308 is a CombiLine terminal expansion kit designed for horizontally arranged terminal blocks within ABB low-voltage sub-distribution assemblies. Supplied under ABB order code 2CPX041693R9999, it belongs to ABB’s DESUJ Sub Distribution product group and provides a structured internal installation solution for professional distribution boards and electrical cabinets.
The MBK308 is supplied as an unassembled internal installation module with three horizontally arranged 35 × 15 mm perforated DIN rails. It provides 108 space units with a 150 mm row spacing, while the three-panel-wide DIN rails incorporate an additional stabilisation profile for enhanced mechanical support across the wider installation field.
With a module height of 450 mm, a 3PW field width of 750 mm and a usable terminal width of 688 mm, the MBK308 provides substantial capacity for terminal installations. Its DIN rails are continuously adjustable in depth from 68–145 mm, and the module is suitable for cabinets from 200 mm depth.
Key Advantages
- Purpose-designed ABB CombiLine terminal expansion kit for low-voltage sub-distribution assemblies.
- 108 space units provide substantial capacity for terminal installations.
- Three horizontal DIN rail rows support organised terminal block mounting.
- 688 mm usable terminal width provides generous installation space across the 3PW field.
- Continuously adjustable 68–145 mm usable depth provides flexibility for terminal and wiring layouts.
- Additional stabilisation profile supports the wide 3PW DIN rail configuration.
Key Features
- ABB MBK308 CombiLine internal installation module.
- 3 panel width (3PW) configuration.
- 450 mm module height.
- 750 mm field width.
- 688 mm usable terminal width.
- 108 space units.
- 3 horizontal DIN rails.
- 150 mm row spacing, adjustable when required.
- 35 × 15 mm perforated DIN rails for wire holders.
- Additional stabilisation profile for the three-panel-wide DIN rails.
- Continuously adjustable mounting depth using mounting brackets.
- Closed plastic cover with 90-degree push-turn fasteners.
- RAL 7035 finish.
- Compatible with EDF or WR mounting frames, ordered separately.
- ABB order code 2CPX041693R9999.
Flexible Terminal Installation for Distribution Boards
Terminal expansion modules provide a structured mounting platform for terminal blocks used to organise incoming, outgoing and internal wiring within electrical distribution assemblies. Horizontal DIN rails enable terminal blocks to be positioned clearly and securely while helping maintain an orderly wiring layout for installation, inspection and maintenance.
The ABB MBK308 provides three horizontal DIN rails within a spacious 3PW field, offering 688 mm usable width and 108 space units. Its continuously adjustable mounting depth and additional DIN rail stabilisation make it a practical solution for professional CombiLine sub-distribution installations requiring extensive terminal capacity.
Typical Applications
- Low-voltage sub-distribution boards.
- ABB CombiLine electrical distribution assemblies.
- Horizontal terminal block installations.
- Commercial and industrial distribution cabinets.
- Electrical panel building and cabinet expansion.
- Large terminal and wiring distribution arrangements.
