Why Choose the ABB MBK306 Terminal Expansion 3PW?
The ABB MBK306, order code 2CPX041681R9999, is an unassembled CombiLine interior expansion module designed for the horizontal installation of terminal blocks in compatible ABB low-voltage distribution cabinets. Part of the DESUJ Sub Distribution product group, it provides a structured, system-matched platform for terminal wiring within professional switchboards and sub-distribution assemblies.
Designed for a 3PW field width of 750 mm, the MBK306 has a module height of 150 mm and provides 36 space units. It incorporates a horizontally arranged 35 × 15 mm DIN rail with perforations for wire holders and an additional stabilisation profile, providing a generous usable terminal-block mounting width of 688 mm.
The DIN rail is continuously adjustable in depth using its mounting brackets, providing a usable depth range of 68–115 mm. The MBK306 uses 150 mm row spacing, features a closed RAL 7035 plastic cover with a 90-degree press-and-turn closure and is suitable for cabinets from 200 mm depth. A compatible ABB EDF or WR mounting framework must be ordered separately.
Key Advantages
- 3PW terminal expansion module for compatible ABB CombiLine distribution assemblies.
- 750 mm field width with 688 mm usable terminal-block mounting width.
- Horizontal 35 × 15 mm DIN rail with perforations for wire holders.
- Additional stabilisation profile supports the wide 3PW DIN-rail arrangement.
- Continuously adjustable mounting depth provides a usable range of 68–115 mm.
- Compatible with EDF and WR mounting frameworks for flexible CombiLine system integration.
Key Features
- ABB MBK306 horizontal terminal module.
- ABB order code 2CPX041681R9999.
- 1 GU / 150 mm module height.
- 3PW / 750 mm field width.
- 36 space units.
- 35 × 15 mm horizontal DIN rail.
- 688 mm usable terminal-block width.
- 68–115 mm adjustable usable depth.
- 150 mm row spacing.
- Additional stabilisation profile for the three-field-wide DIN rail.
- Closed plastic cover with 90-degree press-and-turn closure.
- Suitable for cabinets from 200 mm depth.
- Supplied as an unassembled kit for compatible CombiLine interiors.
Flexible Terminal Mounting for ABB CombiLine Cabinets
Terminal expansion modules provide a structured platform for organising terminal blocks and associated wiring within low-voltage distribution cabinets. The ABB MBK306 combines a 750 mm-wide 3PW format with a horizontally mounted 35 × 15 mm DIN rail, providing 688 mm of usable width for terminal-block installation while an additional stabilisation profile supports the wide rail arrangement.
Its continuously adjustable DIN-rail position provides a usable depth of 68–115 mm, allowing the mounting position to be adapted to different terminal and wiring requirements. Compatibility with ABB EDF and WR mounting frameworks makes the MBK306 a practical system component for wide, organised terminal sections in professional CombiLine distribution assemblies.
Typical Applications
- ABB CombiLine low-voltage distribution cabinets.
- Sub-distribution boards and switchboards.
- Horizontal terminal-block mounting.
- Wide terminal and wiring sections requiring a 3PW format.
- Control and electrical distribution cabinet wiring.
- EDF and WR mounting-frame expansion applications.
