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2CPX041827R9999 ABB MBR302 Busbar Module Expansion 3PW
ABB MBR302 is a 3-panel-width CombiLine N horizontal 60 mm busbar expansion module for vertically mounted fuse equipment, supporting a 3-pole system with up to three copper busbars and a maximum rated current of 440 A.
£210.44
Why Choose the ABB MBR302 Busbar Module Expansion 3PW?
The ABB MBR302 is a CombiLine N horizontal busbar expansion module designed to provide a structured mounting field for busbar-mounted fuse equipment within compatible ABB low-voltage distribution cabinets. Supplied under ABB order code 2CPX041827R9999, it forms part of the ABB DESUJ Sub Distribution product group and is supplied as an unassembled, unequipped kit for professional distribution-board construction.
Designed for a 3-panel-width (3PW) configuration, the MBR302 measures 300 × 750 × 225 mm and provides 72 space units. It uses a 60 mm horizontal busbar system for three-pole applications, with ABB ZX146 busbar holders, a maximum of three copper busbars and additional centre bracing for the wide 3PW arrangement.
The MBR302 supports a maximum rated current of 440 A and is intended for the vertical installation of compatible busbar-mounted fuse sockets, D0 fuse switch disconnectors or NH00 fuse switch disconnectors. Copper busbars and equipment are ordered separately, while plastic covers with cut-outs, finished in RAL 7035, provide a neat and protected cabinet front.
Key Advantages
- 60 mm horizontal busbar system for professional low-voltage distribution assemblies.
- Supports a maximum rated current of 440 A.
- Designed for 3-pole distribution using up to three copper busbars.
- Wide 3-panel-width (3PW) format provides two usable equipment areas of approximately 320 mm each.
- Suitable for compatible D0 fuse switch disconnectors, NH00 fuse switch disconnectors and busbar-mounted fuse sockets.
- Additional centre bracing supports the busbar system across the 750 mm-wide module.
Key Features
- ABB MBR302 CombiLine N busbar module.
- 3-panel-width (3PW) configuration.
- 2 grid units / 300 mm module height.
- 750 mm module width.
- 225 mm module depth.
- 72 space units.
- 60 mm busbar centre distance.
- Horizontal busbar orientation with vertical equipment installation.
- 3-pole busbar system.
- Maximum of 3 copper busbars.
- ZX146 busbar holders.
- ZX172 end cover arrangement.
- 32 mm spacing between copper rail and cover.
- Maximum rated current of 440 A.
- Additional centre bracing for the 3PW busbar arrangement.
- Plastic covers with cut-outs and RAL 7035 finish.
60 mm Busbar Distribution for Fuse Equipment up to 440 A
The ABB MBR302 provides a 60 mm horizontal busbar platform for vertically installed fuse equipment, allowing compatible D0 fuse switch disconnectors, NH00 fuse switch disconnectors and busbar-mounted fuse sockets to be incorporated directly into a CombiLine N distribution assembly. The three-pole arrangement supports up to three copper busbars and a maximum rated current of 440 A.
With a width of 750 mm, the MBR302 provides two usable equipment areas of approximately 320 mm and incorporates additional centre bracing for the busbar system. The module is supplied unequipped so that compatible fuse devices and copper rails can be selected according to the application, while its prepared cut-out covers maintain an organised and accessible switchboard front.
Typical Applications
- ABB CombiLine N low-voltage distribution cabinets.
- 60 mm horizontal busbar distribution systems.
- D0 fuse switch disconnector installations.
- NH00 fuse switch disconnector installations.
- Busbar-mounted Neozed and Diazed fuse socket applications.
- Commercial and industrial power distribution up to 440 A.
Technical Specifications
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| Busbar Centre Distance (mm) | 60 mm | |
|---|---|---|
| Device Type | Busbar | |
| Product Series | ABB CombiLine | |
| Series | CombiLine N | |
| ABB order code | 2CPX041827R9999 | |
| Product group | DESUJ Sub Distribution | |
| Product type | Busbar module expansion | |
| Configuration | Kit, unassembled and unequipped | |
| Panel width | 3PW | |
| Grid units | 2 | |
| Space units | 72 | |
| Height | 300 mm | |
| Width | 750 mm | |
| Depth | 225 mm | |
| Minimum cabinet depth | 225 mm, subject to installed equipment depth | |
| Usable equipment width | 2 × 320 mm | |
| Equipment orientation | Vertical | |
| Busbar orientation | Horizontal | |
| Busbar centre distance | 60 mm | |
| Number of poles | 3 | |
| Maximum number of copper busbars | 3 | |
| Busbar holder | ZX146 | |
| End cover | ZX172 | |
| Copper rail to cover spacing | 32 mm | |
| Maximum rated current (In) | 440 A | |
| Rated operational voltage (Ue) | 400 V AC | |
| Rated frequency | 50 Hz | |
| Rated insulation voltage (Ui) | 690 V | |
| Rated impulse withstand voltage (Uimp) | 6 kV | |
| Rated peak withstand current (Ipk) | 74 kA | |
| Overvoltage category | III | |
| Pollution degree | 3 | |
| Compatible equipment | D0 / NH fuse switch disconnectors and busbar-mounted fuse sockets | |
| Compatible equipment sizes | D02, E27 and E33 | |
| Equipment supplied | No | |
| Copper busbars supplied | No, ordered separately | |
| Mounting plate | Not included | |
| N/PE terminals | Not included | |
| Cover material | Plastic | |
| Cover design | With cut-out | |
| Cover colour | RAL 7035 | |
| Cover fastening | 90-degree press-and-turn closure | |
| Mounting system | WR | |
| Mounting frame | Ordered separately | |
| Fire-protection enclosure suitability | Not suitable | |
| Net weight | approx. 2.526 kg | |
| EAN / GTIN | 4011617418276 |
Frequently Asked Questions
What is the ABB MBR302 used for?
The MBR302 is a CombiLine N expansion module providing a 60 mm horizontal 3-pole busbar system for the vertical installation of compatible busbar-mounted fuse sockets, D0 fuse switch disconnectors and NH00 fuse switch disconnectors.
What is the maximum rated current of the ABB MBR302?
The ABB MBR302 supports a maximum rated current of 440 A when configured with suitable compatible copper busbars and equipment.
How many busbars can the ABB MBR302 accommodate?
The MBR302 is designed for a 3-pole busbar system and accommodates a maximum of 3 copper busbars at 60 mm centre spacing.
Are busbars and fuse devices supplied with the ABB MBR302?
No. The MBR302 is supplied as an unassembled, unequipped module. Compatible copper busbars and fuse equipment must be selected and ordered separately, as must the required mounting frame.
What is the ABB order code for the MBR302?
The ABB order code for the MBR302 busbar module expansion is 2CPX041827R9999.
Trusted ABB Busbar Distribution Components
ABB CombiLine N busbar modules provide a structured platform for professional fused power distribution, combining standardised 60 mm busbar positioning, modular fuse-device mounting and robust cabinet integration for commercial and industrial low-voltage assemblies.
