Why Choose the ABB MBT242 NH1 Fuse Switch Expansion 2PW?
The ABB MBT242 is an unassembled NH1 fuse switch disconnector expansion module designed for ABB CombiLine modular distribution assemblies. Supplied under ABB order code 2CPX041777R9999, it provides the mounting infrastructure for installing two ABB NH1 fuse switch disconnectors within compatible low-voltage distribution boards.
The MBT242 is designed for two NH1 fuse switch disconnectors and incorporates a 3-pole busbar system. It is intended for ABB ZH431 NH1 fuse switch disconnectors rated up to 250 A each and supports a maximum module rated current of 440 A in its single-level busbar arrangement.
With a height of 450 mm, width of 500 mm and cabinet-depth requirement of at least 200 mm, the MBT242 corresponds to a 3 RE × 2 PW configuration and provides 72 space units. RAL 7035 plastic covers with equipment cut-outs and 90-degree push-turn fasteners complete the modular assembly, while the fuse switch disconnectors, busbar accessories and mounting frame are selected separately.
Key Advantages
- Purpose-designed NH1 fuse switch expansion for ABB CombiLine systems.
- Provides mounting capacity for two NH1 fuse switch disconnectors.
- Designed for ABB ZH431 250 A NH1 fuse switch disconnectors.
- Integrated provision for a 3-pole busbar system.
- Maximum module rated current of 440 A.
- 2 PW / 500 mm width with 72 space units for structured distribution-board integration.
Key Features
- ABB MBT242 NH1 fuse switch expansion module.
- ABB order code 2CPX041777R9999.
- Part of the ABB CombiLine interior fitting system.
- Supplied as an unassembled kit.
- 3 RE / 450 mm height.
- 2 PW / 500 mm width.
- 72 space units.
- Prepared for 2 × NH1 fuse switch disconnectors.
- Designed for ABB ZH431 fuse switch disconnectors.
- Fuse switch disconnector rating up to 250 A.
- 3-pole busbar system.
- Maximum module rated current of 440 A.
- Plastic covers with equipment cut-outs.
- RAL 7035 cover finish.
- 90-degree push-turn cover fasteners.
- Suitable for cabinets from 200 mm depth.
- Compatible EDF or WR mounting frame must be ordered separately.
NH Fuse Protection and Power Distribution for Electrical Assemblies
NH fuse switch disconnector modules such as the ABB MBT242 provide a structured method of integrating high-capacity fuse protection and switching into low-voltage distribution assemblies. The module positions compatible NH1 fuse switch disconnectors in conjunction with a three-pole busbar system, supporting protected outgoing circuits while maintaining an organised modular panel layout.
The ABB CombiLine system uses standardised interior components to create configurable distribution assemblies. With provision for two 250 A NH1 fuse switch disconnectors, a maximum module rated current of 440 A and a compact 2 PW configuration, the MBT242 provides a practical solution for fused power distribution in commercial and industrial switchboards.
Typical Applications
- ABB CombiLine modular distribution assemblies.
- NH1 fused outgoing distribution circuits.
- Commercial and industrial sub-distribution boards.
- Low-voltage electrical distribution cabinets.
- Panel-building and switchboard applications.
- Three-phase fused power-distribution systems.
