Why Choose the ABB MBN163 N+PE / Terminal Expansion?
The ABB MBN163 is a CombiLine N+PE busbar and terminal expansion kit designed for neutral, protective earth and terminal distribution within ABB low-voltage sub-distribution assemblies. Supplied under ABB order code 2CPX041764R9999, it belongs to ABB’s DESUJ Sub Distribution product group and combines busbar distribution with dedicated terminal mounting capacity in a compact single-panel-width module.
The MBN163 is supplied as an unassembled internal installation module for a 2-pole horizontal N+PE busbar system and terminal blocks. It incorporates an ABB ZX149 busbar holder, supports a maximum of 2 copper busbars and is designed for busbars up to 30 × 10 mm. The module provides a maximum rated current of 630 A, while the required copper busbars are ordered separately.
With a module height of 450 mm, a 1PW field width of 250 mm and 36 space units, the MBN163 provides an efficient combination of N+PE distribution and terminal capacity. Its installation system is continuously adjustable in depth, providing 90–145 mm usable depth and 188 mm usable width, while the module is suitable for cabinets from 275 mm depth.
Key Advantages
- Combines N+PE busbar distribution and terminal mounting within one CombiLine module.
- Supports a maximum rated current of 630 A.
- 2-pole horizontal busbar system provides dedicated neutral and protective earth distribution capability.
- Supports up to 2 copper busbars with dimensions up to 30 × 10 mm.
- 90–145 mm continuously adjustable usable depth provides flexible installation positioning.
- Compact 1PW, 250 mm field width provides substantial functionality while conserving cabinet space.
Key Features
- ABB MBN163 CombiLine internal installation module.
- Designed for N+PE busbars and terminal blocks.
- 1 panel width (1PW) configuration.
- 3 grid units (3GU).
- 450 mm module height.
- 250 mm field width.
- 36 space units.
- 2-pole horizontal busbar system.
- 92 mm busbar spacing.
- Supports a maximum of 2 copper busbars.
- 630 A maximum rated current.
- 20 kA short-time withstand current (Icw).
- Supplied with ZX149 busbar holder.
- 188 mm usable installation width.
- 90–145 mm usable installation depth.
- Closed plastic covers with 90-degree press-and-turn fasteners.
- RAL 7035 light grey finish.
- Compatible with WR mounting frames, ordered separately.
Reliable N+PE and Terminal Distribution for Electrical Panels
Combined N+PE and terminal modules provide an organised platform for neutral and protective earth distribution alongside terminal connections within low-voltage switchboards. Integrating these functions into a coordinated installation field helps panel builders maintain structured wiring, accessible termination points and efficient use of enclosure space.
The ABB MBN163 combines a 2-pole horizontal busbar system, support for up to 2 copper busbars and a maximum rated current of 630 A with space for terminal installation. Its 188 mm usable width and continuously adjustable 90–145 mm mounting depth make it a flexible solution for professional CombiLine sub-distribution assemblies.
Typical Applications
- Low-voltage sub-distribution boards.
- ABB CombiLine electrical distribution assemblies.
- Neutral and protective earth busbar distribution.
- Terminal block and conductor termination arrangements.
- Commercial and industrial distribution cabinets.
- Electrical panel building requiring combined N+PE and terminal capacity.
