ABB MBR103 is a 1 PW CombiLine N busbar module expansion kit for a 60 mm horizontal three-pole busbar system, rated up to 630 A and designed for compatible fuse switch disconnectors and bus-mounted fuse sockets.
Why Choose the ABB MBR103 Busbar Module Expansion 1PW?
The ABB MBR103 is an unmounted 60 mm horizontal busbar module expansion kit designed for ABB low-voltage sub-distribution assemblies. Part of the ABB CombiLine N interior expansion system, it provides a structured platform for the vertical installation of compatible D0 and NH fuse switch disconnectors or bus-mounted fuse sockets.
Designed for professional distribution-board and switchgear construction, the MBR103 uses a three-pole horizontal busbar arrangement and is supplied with an ABB ZX146 busbar holder. The module is unpopulated, allowing compatible protective devices and copper busbars to be selected according to the requirements of the distribution assembly.
The MBR103 has a 3 RE / 450 mm height, 1 PW / 250 mm field width and 165 mm usable width, providing 36 modular units. The busbar module supports a maximum rated current of 630 A and is intended for WR mounting frames in cabinets from approximately 275 mm depth, subject to the installed equipment dimensions.
Key Advantages
Purpose-designed 60 mm horizontal busbar module expansion for ABB distribution assemblies.
Maximum rated current of 630 A for substantial low-voltage distribution loads.
3 RE / 450 mm height and 1 PW / 250 mm field width.
Provides 165 mm usable width and 36 modular units.
Designed for a three-pole busbar system.
Supplied with an ABB ZX146 busbar holder.
Supports vertical installation of compatible fuse switch disconnectors and bus-mounted fuse sockets.
Unmounted and unpopulated configuration allows flexible panel design.
Key Features
ABB CombiLine N interior expansion system.
60 mm horizontal busbar system.
Three-pole busbar arrangement.
630 A maximum rated current.
3 RE / 450 mm module height.
1 PW / 250 mm field width.
165 mm usable width.
36 modular units.
ZX146 busbar holder included.
Cover without cut-out, including extension frame.
Designed for vertical installation of compatible D0 and NH fuse switch disconnectors or bus-mounted fuse sockets.
Suitable for WR mounting frames.
High-Capacity Busbar Distribution for Modular Panels
Busbar modules provide an efficient method of distributing electrical power to protective and switching devices within low-voltage distribution assemblies. The ABB MBR103 combines a three-pole horizontal busbar arrangement with vertical equipment installation, creating a flexible platform for compatible fuse switch disconnectors and bus-mounted fuse sockets.
The MBR103 is supplied with the ABB ZX146 busbar holder and is rated for currents up to 630 A. Its unpopulated configuration allows panel builders to select the appropriate devices and copper busbars for the application, while the standard CombiLine N dimensions simplify integration into compatible ABB distribution systems.
Typical Applications
ABB CombiLine N modular distribution assemblies.
Low-voltage sub-distribution boards.
Busbar-based power distribution systems.
D0 fuse switch disconnector installations.
NH fuse switch disconnector installations.
Bus-mounted fuse socket installations.
Commercial and industrial electrical distribution panels.
Professional switchgear and panel construction.
Technical Specifications
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Device Type
Busbar
Product Series
ABB CombiLine
Series
CombiLine N
ABB order code
2CPX041830R9999
Product group
DESUJ Sub Distribution
Product type
Busbar module expansion kit
Busbar system
60 mm horizontal
Busbar system poles
3
Rated current
630 A max.
Height
3 RE / 450 mm
Field width
1 PW / 250 mm
Usable width
165 mm
Modular capacity
36 PLE
Minimum cabinet depth
275 mm, dependent on installed equipment
Equipment orientation
Vertical
Busbar orientation
Horizontal
Busbar holder
ZX146
Mounting frame compatibility
WR
Cover
Without cut-out, including extension frame
Kit configuration
Unmounted and unpopulated
Frequently Asked Questions
What is the ABB MBR103 used for?
The MBR103 is an unmounted busbar module expansion kit for the vertical installation of compatible D0 and NH fuse switch disconnectors or bus-mounted fuse sockets in ABB CombiLine N distribution assemblies.
What is the maximum rated current of the MBR103?
The ABB MBR103 busbar module supports a maximum rated current of 630 A.
What size is the MBR103 module?
The MBR103 is 3 RE / 450 mm high and 1 PW / 250 mm wide, with a usable width of 165 mm and capacity for 36 modular units.
Which busbar system does the MBR103 use?
The MBR103 is designed for a three-pole 60 mm horizontal busbar system and is supplied with an ABB ZX146 busbar holder.
Is the MBR103 supplied with protective devices?
No. The MBR103 is an unpopulated expansion module, allowing compatible fuse switch disconnectors or bus-mounted fuse sockets to be selected separately for the required application.
Trusted ABB Distribution System Engineering
ABB CombiLine N interior expansion components provide panel builders with a coordinated modular platform for constructing organised, adaptable and dependable low-voltage power distribution assemblies.
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