Why Choose the ABB MBN363 N+PE / Terminal Expansion 3PW?
The ABB MBN363 is a CombiLine N N/PE busbar and terminal expansion module kit designed for structured neutral, protective-earth and terminal distribution within low-voltage electrical assemblies. Supplied under ABB order code 2CPX041768R9999, this 3PW module combines a two-pole horizontal N/PE busbar system with additional DIN rails for terminal blocks.
The MBN363 uses ZX149 busbar holders and accommodates a maximum of two copper busbars in a horizontal arrangement. The busbar system is rated up to 630 A, while the three-field-width construction is additionally braced in the centre to provide mechanical support across the wider module. Copper busbars are selected and ordered separately.
With dimensions of 450 × 750 × 260 mm, the MBN363 provides 108 space units and two additional DIN rails for terminal blocks. The DIN-rail mounting depth is continuously adjustable, providing a usable depth of 90–145 mm and a usable terminal width of 688 mm. The module is suitable for cabinets from 275 mm depth.
Key Advantages
- Combines N/PE busbars and terminal mounting in one modular CombiLine N section.
- 3PW / three-field-width configuration provides substantial terminal installation capacity.
- Two-pole horizontal busbar system supports a maximum rated current of 630 A.
- Provides 688 mm usable terminal width for organised connection arrangements.
- Two additional DIN rails provide flexible mounting for terminal blocks.
- Continuously adjustable 90–145 mm usable depth supports different terminal and wiring requirements.
Key Features
- ABB MBN363 CombiLine N N/PE busbar and terminal module kit.
- 3PW / three-field-width configuration.
- 3 row units / 450 mm module height.
- 750 mm module width.
- 108 space units.
- Two-pole horizontal busbar system.
- Maximum rated current of 630 A.
- Supplied with ZX149 busbar holders.
- Designed for a maximum of two copper busbars.
- Two additional DIN rails for terminal blocks.
- 688 mm usable terminal width.
- Continuously adjustable usable depth of 90–145 mm.
- Closed plastic covers with 90-degree press-and-turn fasteners.
- RAL 7035 finish.
Reliable N/PE and Terminal Distribution for Electrical Assemblies
N/PE busbar and terminal modules such as the ABB MBN363 provide a structured location for neutral and protective-earth distribution while also accommodating terminal blocks for circuit connections. Combining these functions within one module helps panel builders create clear, accessible wiring arrangements in professional low-voltage distribution assemblies.
The MBN363 combines a 630 A two-pole busbar system with two additional DIN rails, generous terminal width and continuously adjustable installation depth. Its three-field-width CombiLine N format is particularly suited to assemblies requiring substantial N/PE distribution and terminal capacity within a single modular section.
Typical Applications
- Low-voltage electrical distribution boards.
- Commercial and industrial switchboards.
- Neutral and protective-earth busbar distribution.
- Terminal-block sections for incoming and outgoing circuits.
- Main and sub-distribution assemblies.
- Electrical panel building and system integration.
- ABB CombiLine N interior expansion systems.
