Why Choose the ABB MG434 Modular Expansion 3PW?
The ABB MG434, order code 2CPX041220R9999, is a pre-assembled CombiLine modular expansion module for DIN rail-mounted devices used within ABB sub-distribution systems. Part of ABB’s CombiLine interior expansion system and the DESUJ Sub Distribution product group, it provides a structured mounting solution for modular electrical devices in distribution cabinets.
Designed for DIN rail equipment in accordance with DIN 43880, the MG434 provides 144 module positions arranged across four DIN rails. The module has a 4 RE height of 600 mm and a three-field-width configuration of 750 mm, providing substantial installation capacity for protective, switching and control devices within electrical distribution assemblies.
The MG434 uses 35 × 15 mm DIN rails with provision for wire holders and an additional stabilisation rail for its three-field-width construction. Supplied as a mounted interior expansion module with light-grey plastic covers, it is suitable for cabinets from 120 mm depth and is designed for installation on an ABB EDF or WR mounting frame, which is ordered separately.
Key Advantages
- Pre-assembled CombiLine modular expansion module for sub-distribution cabinets.
- 144 module positions provide high-density capacity for DIN rail-mounted equipment.
- Three-field-width, 750 mm configuration for larger distribution assemblies.
- Four DIN rails with 36 module positions per rail.
- Suitable for equipment manufactured in accordance with DIN 43880.
- Compatible with ABB EDF and WR mounting frames.
Key Features
- ABB CombiLine interior expansion system.
- MG434 mounted modular expansion module.
- 4 RE / 600 mm installation height.
- 3 panel widths / 750 mm overall width.
- 144 PLE module positions.
- Four 35 × 15 mm DIN rails.
- 150 mm row spacing.
- Plastic covers with cut-outs and 90-degree push-turn fasteners.
- Light-grey RAL 7035 finish.
- Suitable from a minimum cabinet depth of 120 mm.
Flexible Interior Expansion for Distribution Systems
Modular interior expansion systems such as the ABB CombiLine range provide organised mounting space for protective and control equipment within electrical distribution cabinets. Standardised DIN rails and defined module spacing help simplify equipment layout, installation, wiring and future system expansion.
The MG434 is designed for high-capacity sub-distribution applications requiring four rows of modular devices across a three-field-width assembly. Its pre-assembled construction, stabilised DIN rail arrangement and compatibility with EDF or WR mounting frames make it suitable for structured professional switchboard and distribution-panel installations.
Typical Applications
- Commercial and industrial sub-distribution boards.
- Electrical distribution cabinets and switchboards.
- DIN rail protective device installations.
- Building-services electrical distribution systems.
- Control and switching equipment assemblies.
- ABB CombiLine cabinet expansion and interior fit-out.
