Why Choose the ABB MBG301 Modular Expansion 3PW?
The ABB MBG301, order code 2CPX041652R9999, is an unassembled CombiLine interior expansion module designed for DIN-rail mounted devices in compatible ABB low-voltage distribution cabinets. Part of the DESUJ Sub Distribution product group, it provides a system-matched solution for building organised modular device rows within professional switchboards and sub-distribution assemblies.
Designed for a 3PW field width of 750 mm, the MBG301 provides 1 grid unit (RE) of 150 mm height and 36 modular spaces. It incorporates a 35 × 15 mm DIN rail with perforations for wire holders and, because of its three-field width, includes an additional stabilisation rail for increased mechanical support.
The MBG301 supports 125 mm and 150 mm row spacing, is suitable for devices according to DIN 43880 and can be used in cabinets from 120 mm depth. Its light-grey plastic cover features a device cut-out and a 90-degree push-turn closure, while compatible EDF or WR mounting frameworks are ordered separately.
Key Advantages
- 3PW modular expansion module for compatible ABB CombiLine distribution assemblies.
- Provides 36 modular spaces for DIN-rail mounted electrical devices.
- 750 mm field width provides substantial installation capacity within a single device row.
- Supports both 125 mm and 150 mm row spacing.
- Additional stabilisation rail supports the wide 3PW DIN-rail configuration.
- Compatible with EDF and WR mounting frameworks for flexible CombiLine system integration.
Key Features
- ABB MBG301 DIN-rail mounting device module.
- ABB order code 2CPX041652R9999.
- 1 RE / 150 mm module height.
- 3PW / 750 mm field width.
- 36 modular spaces.
- 35 × 15 mm DIN rail with perforations for wire holders.
- Additional stabilisation rail for the three-field-wide DIN rail.
- Suitable for installation devices according to DIN 43880.
- Plastic cover with device cut-out and 90-degree push-turn closure.
- Supplied as an unassembled kit for compatible CombiLine interiors.
Flexible DIN-Rail Expansion for ABB CombiLine Cabinets
DIN-rail expansion modules provide a structured platform for installing modular electrical devices within low-voltage distribution cabinets. The ABB MBG301 combines a 750 mm-wide 3PW format with 36 modular spaces and a 35 × 15 mm DIN rail, providing generous installation capacity while maintaining the standardised internal layout of the CombiLine system.
The module can be configured with 125 mm or 150 mm row spacing and uses an additional stabilisation rail to support its three-field-wide DIN rail. Compatibility with ABB EDF and WR mounting frameworks makes the MBG301 a versatile system component for professional panel builders requiring organised, expandable and mechanically stable modular-device installation.
Typical Applications
- ABB CombiLine low-voltage distribution cabinets.
- Sub-distribution boards and switchboards.
- DIN-rail mounted protective and control devices.
- Modular electrical installation equipment according to DIN 43880.
- EDF and WR mounting-frame expansion applications.
- Professional commercial and industrial electrical distribution assemblies.
