Why Choose the ABB MT245 NH2 Fuse Switch Expansion?
The ABB MT245 is a dedicated NH2 fuse switch expansion assembly designed for ABB sub-distribution systems. Supplied under ABB order code 2CPX041327R9999, this 2-panel-width expansion provides a structured solution for integrating NH2 fuse switch disconnectors into compatible distribution cabinets.
The MT245 is designed for use with a 3-pole busbar system and accommodates up to four NH2 fuse switch disconnectors. It is supplied unpopulated for ABB ZH441 NH2 fuse switch disconnectors rated at 400 A, allowing the required switching devices to be selected and installed as part of the finished distribution assembly.
With a width of 500 mm, a capacity of 120 PLE and suitability for cabinets from 225 mm depth, the MT245 provides a practical expansion solution for larger low-voltage distribution installations. It is intended for installation on a compatible WR mounting frame, which must be ordered separately.
Key Advantages
- Purpose-designed NH2 fuse switch expansion for ABB sub-distribution assemblies.
- 2-panel-width configuration with a width of 500 mm.
- Accommodates up to four NH2 fuse switch disconnectors.
- Designed for a 3-pole busbar system.
- Suitable for ABB ZH441 NH2 fuse switch disconnectors rated at 400 A.
- Provides 120 PLE installation capacity for structured distribution-board construction.
Key Features
- ABB MT245 fuse switch expansion assembly.
- NH2 fuse switch disconnector format.
- 2 PW / 500 mm width.
- Capacity for four NH2 devices.
- 120 PLE configuration.
- Designed for 3-pole busbar systems.
- Suitable from a cabinet depth of 225 mm.
- Designed for installation on a WR mounting frame.
Structured Fuse Protection for Sub-Distribution Systems
NH fuse switch disconnectors combine fuse protection with a means of safely switching and isolating electrical circuits. In larger sub-distribution assemblies, dedicated expansion modules provide the mechanical and busbar arrangement required to integrate these devices in an organised and serviceable format.
The ABB MT245 is configured specifically for NH2 fuse switch disconnectors and a 3-pole busbar system. Its four-device, 2-panel-width arrangement supports the construction of higher-capacity distribution boards while maintaining a consistent ABB system architecture. The required WR mounting frame is ordered separately, and the assembly is not intended for fire-protection housings.
Typical Applications
- Commercial and industrial sub-distribution boards.
- Low-voltage power distribution cabinets.
- NH fuse switch disconnector installations.
- Electrical distribution systems requiring multiple protected outgoing circuits.
- ABB modular distribution-board assemblies.
- Industrial switchboard and panel-building projects.
