Why Choose the ABB MBT144 NH2 Fuse Switch Expansion 1PW?
The ABB MBT144 is a CombiLine N NH2 fuse switch-disconnector expansion module kit designed for fused power distribution within professional low-voltage electrical assemblies. Supplied under ABB order code 2CPX041782R9999, this 1PW module is prepared for the installation of one ABB NH2 fuse switch-disconnector.
The MBT144 is supplied unpopulated for an ABB ZH441 NH2 fuse switch-disconnector, which has a maximum rated current of 400 A. The module is intended for a three-pole busbar system and is supplied without separator shutters, allowing the appropriate switching, busbar and protective accessories to be selected for the completed distribution assembly.
The module has a height of 450 mm, a width of 250 mm and provides 36 space units in a compact single-field-width configuration. Installation is possible from a cabinet depth of 215 mm, and the MBT144 can be expanded on compatible EDF or WR mounting frames, which must be ordered separately.
Key Advantages
- Purpose-designed NH2 fuse switch-disconnector expansion module for ABB CombiLine N assemblies.
- Prepared for one ABB ZH441 NH2 fuse switch-disconnector.
- Supports an NH2 fuse switch-disconnector rated up to 400 A.
- Designed for integration with a three-pole busbar system.
- Compact 1PW format provides an NH2 feeder position within a 250 mm-wide field.
- Compatible with both EDF and WR mounting-frame expansion.
Key Features
- ABB MBT144 CombiLine N expansion module kit.
- 1PW / single-field-width configuration.
- 3 row units / 450 mm module height.
- 250 mm module width.
- 36 space units.
- Provision for 1 × NH2 fuse switch-disconnector.
- Designed for the ABB ZH441.
- ZH441 maximum rated current: 400 A.
- Three-pole busbar system configuration.
- Module supplied without separator shutters.
- Suitable from a cabinet depth of 215 mm.
- Compatible with EDF and WR mounting frames.
Reliable NH2 Fused Power Distribution
NH fuse switch-disconnectors provide fuse-based overcurrent protection together with a defined means of circuit switching and isolation. The ABB MBT144 provides the modular interior arrangement required to integrate a single NH2 fuse switch-disconnector into a compatible CombiLine N distribution assembly.
When fitted with the appropriate ABB ZH441 device and compatible three-pole busbar arrangement, the MBT144 provides a structured solution for higher-current feeder circuits. Its single-field-width format is particularly useful where an NH2 fused outgoing or distribution circuit needs to be incorporated without occupying a larger multi-field module.
Typical Applications
- Low-voltage electrical distribution boards.
- Commercial and industrial switchboards.
- NH2 fused feeder circuits.
- Power distribution and circuit-isolation sections.
- Main and sub-distribution assemblies.
- Industrial electrical panel construction.
- ABB CombiLine N interior expansion systems.
