Why Choose the ABB MBU257 Meter Plate Expansion 2PW?
The ABB MBU257 is a CombiLine meter expansion module designed for integrating panel-mounted measuring instruments into compatible ABB low-voltage distribution cabinets. Supplied under ABB order code 2CPX041809R9999, it forms part of the ABB DESUJ Sub Distribution product group and provides a purpose-designed mounting field for electrical metering and monitoring equipment.
Designed for a 2-panel-width (2PW) configuration, the MBU257 measures 150 mm high × 500 mm wide and provides 24 space units. The module is supplied unequipped and is prepared for the installation of up to 4 panel meters with 96 × 96 mm mounting dimensions, arranged horizontally across the module.
The MBU257 is supplied as an unassembled kit with plastic covers incorporating the required instrument cut-outs. The covers are finished in RAL 7035 and use 90-degree press-and-turn fasteners. The module is suitable for cabinets from 225 mm depth and can be installed on compatible ABB EDF or WR mounting frames, which must be ordered separately.
Key Advantages
- Purpose-designed for panel-mounted electrical measuring instruments.
- Prepared for up to 4 instruments with 96 × 96 mm mounting dimensions.
- 2-panel-width (2PW) format provides a 500 mm-wide metering field.
- Horizontal instrument arrangement creates a clear and organised monitoring layout.
- Preconfigured covers with cut-outs simplify integration of compatible panel meters.
- Compatible with both EDF and WR mounting-frame systems.
Key Features
- ABB MBU257 CombiLine meter module.
- 2-panel-width (2PW) configuration.
- 1 grid unit / 150 mm module height.
- 500 mm module width.
- 24 space units.
- Prepared for up to 4 measuring instruments.
- Instrument mounting size: 96 × 96 mm.
- Horizontal instrument arrangement.
- Supplied unassembled and unequipped.
- Plastic covers with instrument cut-outs.
- RAL 7035 light-grey cover finish.
- 90-degree press-and-turn cover fastening.
- Suitable from 225 mm cabinet depth.
- Compatible EDF or WR mounting frame ordered separately.
Dedicated Mounting for Four 96 × 96 mm Panel Meters
The ABB MBU257 provides a dedicated metering field for up to four 96 × 96 mm measuring instruments. Its horizontal instrument arrangement is well suited to applications where multiple electrical parameters need to be displayed together, allowing compatible ammeters, voltmeters, multifunction meters and other panel instruments to be positioned in a clear and accessible layout.
Because the MBU257 is supplied unequipped, the measuring instruments can be selected according to the monitoring requirements of the distribution system. The module's prepared cut-out covers and CombiLine mounting arrangement simplify integration into compatible ABB cabinet assemblies while retaining a consistent modular appearance across the switchboard.
Typical Applications
- ABB CombiLine low-voltage distribution cabinets.
- Panel-mounted electrical metering and monitoring.
- Multifunction power meter installations.
- Commercial and industrial sub-distribution boards.
- Switchboard voltage, current, power and energy monitoring.
- Professional panel-building and system integration projects.
