Why Choose the ABB MT144 NH2 Fuse Switch Expansion 1PW?
The ABB MT144 is a CombiLine NH2 fuse switch disconnector expansion module designed for structured fused power distribution within professional low-voltage electrical cabinets. Supplied under ABB order code 2CPX041323R9999, the MT144 is a cabinet-mounted 1PW / single-field-width module prepared for the installation of one NH2 fuse switch disconnector.
The MT144 has a module height of 3 RE / 450 mm, a field width of 1 FB / 250 mm and provides 36 space units. It is supplied unpopulated for one NH2 fuse switch disconnector and is designed for the ABB ZH441 NH2 device, rated up to 400 A, within a 3-pole busbar system.
The module supports a maximum rated current of 440 A in its single-level busbar arrangement and is suitable for cabinets from 215 mm depth. Plastic covers with an equipment cut-out, 90-degree press-and-turn fasteners and a RAL 7035 finish complete the assembly, while the required EDF or WR mounting frame is ordered separately.
Key Advantages
- Purpose-designed NH2 fuse switch disconnector expansion module for ABB CombiLine systems.
- Prepared for installation of one NH2 fuse switch disconnector.
- Compatible with the ABB ZH441 NH2 fuse switch disconnector rated up to 400 A.
- 3-pole busbar arrangement supports a maximum rated current of 440 A.
- Compact 1PW / 250 mm field width for efficient cabinet utilisation.
- Compatible with EDF and WR mounting frames for professional system integration.
Key Features
- ABB CombiLine interior expansion system.
- Designed for NH2 fuse switch disconnector installation.
- Unpopulated for 1 NH2 fuse switch disconnector.
- Compatible fuse switch disconnector: ABB ZH441.
- Compatible fuse switch rating: up to 400 A.
- 3 RE / 450 mm module height.
- 1 FB / 250 mm field width.
- 36 space units.
- 3-pole busbar system.
- Maximum rated current of 440 A.
- Plastic cover with equipment cut-out.
- 90-degree press-and-turn fasteners.
- RAL 7035 cover finish.
- Suitable for cabinets from 215 mm depth.
Flexible NH2 Fused Distribution
The ABB MT144 provides a dedicated CombiLine section for installing one NH2 fuse switch disconnector within a 3-pole busbar system. Its unpopulated design allows the compatible ABB ZH441 to be installed for the application, providing fuse protection and switch-disconnection functionality for a high-current outgoing low-voltage circuit.
With a compact 250 mm field width, 450 mm module height and 36 space units, the MT144 provides an efficient way to incorporate an NH2 fused outgoing way into a compatible ABB cabinet assembly. The module is supplied mounted for cabinet installation, while the NH2 fuse switch disconnector and appropriate EDF or WR mounting frame must be selected separately.
Typical Applications
- Low-voltage power distribution cabinets.
- ABB CombiLine sub-distribution assemblies.
- NH2 fused outgoing circuit distribution.
- Commercial and industrial switchgear assemblies.
- High-current fuse-protected feeder circuits.
- Professional panel-building and electrical installation projects.
