Why Choose the ABB MK109 Terminal Expansion?
The ABB MK109 is a factory-assembled CombiLine terminal expansion module designed for horizontal terminal-block installation within compatible ABB sub-distribution cabinets. Supplied under ABB order code 2CPX041236R9999, it forms part of the ABB DESUJ Sub Distribution product group and provides a 1 PW / 250 mm field width.
The MK109 has a 4 RE / 600 mm nominal height and provides 48 space units. It uses 35 × 15 mm top-hat DIN rails for horizontally arranged terminal blocks, with a 150 mm row spacing and a usable terminal-block width of 188 mm.
For flexible terminal positioning, the DIN-rail arrangement is continuously adjustable in depth using depth-mounting brackets, providing a usable depth range of 68–145 mm. The module has closed RAL 7035 plastic covers with 90-degree press-and-turn fasteners and is suitable for cabinets from 200 mm deep; the compatible EDF or WR mounting frame is ordered separately.
Key Advantages
- Purpose-designed terminal expansion for ABB CombiLine systems.
- 1 PW / 250 mm field width for compact terminal installations.
- 4 RE / 600 mm height with 48 space units.
- 188 mm usable terminal-block width.
- Continuously adjustable mounting depth from 68–145 mm.
- Horizontal terminal arrangement with 150 mm row spacing.
Key Features
- ABB MK109 CombiLine terminal expansion module.
- 1 PW / 250 mm field width.
- 4 RE / 600 mm nominal height.
- 48 space units.
- 35 × 15 mm top-hat DIN rails.
- DIN rails perforated for wire holders.
- 150 mm row spacing.
- 188 mm usable terminal-block width.
- 68–145 mm usable depth.
- Closed RAL 7035 plastic cover with 90-degree press-and-turn fasteners.
- Suitable from a cabinet depth of 200 mm.
Flexible Terminal Expansion for Distribution Systems
Terminal expansion modules provide dedicated installation space for terminal blocks and associated wiring within electrical distribution assemblies. The horizontal DIN-rail arrangement of the MK109 provides an organised terminal area, while its adjustable mounting depth helps accommodate different terminal and wiring requirements.
With a 1 PW field width, 600 mm nominal height and 188 mm usable terminal width, the ABB MK109 provides a compact yet versatile solution for terminal-block installations in compatible CombiLine distribution systems.
Typical Applications
- Electrical sub-distribution boards.
- ABB CombiLine distribution systems.
- Horizontal terminal-block installations.
- Commercial building electrical distribution.
- Industrial electrical distribution panels.
- Distribution-board extensions and terminal wiring areas.
