Why Choose the ABB MBT337 NH00 Fuse Switch Expansion 3PW?
The ABB MBT337 is an unpopulated NH00 fuse switch disconnector expansion module designed for ABB low-voltage sub-distribution assemblies. Part of the ABB CombiLine system and DESUJ Sub Distribution range, it provides the internal infrastructure required for installing multiple NH00 fuse switch disconnectors in a structured distribution cabinet.
The MBT337 is designed for up to 12 NH00 fuse switch disconnectors, including compatible ABB ZH411 or ZH412 devices, and incorporates a 3-pole busbar system. The module supports a maximum rated current of 320 A, providing a practical solution for fused outgoing circuits in larger low-voltage distribution assemblies.
Configured for 3 panel widths (3PW), the MBT337 measures 600 × 750 × 200 mm and provides 144 space units. It corresponds to 4 grid units (RE), uses plastic covers with cut-outs and is designed for installation on a separately ordered WR mounting frame.
Key Advantages
- Purpose-designed NH00 fuse switch expansion for ABB CombiLine systems.
- Accommodates up to 12 NH00 fuse switch disconnectors.
- 3PW configuration with a 750 mm field width.
- Integrated 3-pole busbar system.
- Maximum rated current of 320 A.
- Provides 144 space units across a 4 RE module height.
- Unpopulated format allows compatible NH00 fuse switch disconnectors to be selected separately.
Key Features
- ABB CombiLine internal installation module.
- NH00 Fuse Switch Expansion 3PW.
- 4 RE / 600 mm module height.
- 750 mm module width.
- 200 mm module depth.
- 144 space units.
- Capacity for 12 NH00 fuse switch disconnectors.
- 3-pole busbar system.
- 320 A maximum rated current.
- Plastic covers with cut-outs.
- RAL 7035 cover finish.
- ABB order code 2CPX041775R9999.
NH00 Fused Distribution for CombiLine Systems
The ABB MBT337 provides a dedicated installation field for NH00 fuse switch disconnectors within larger CombiLine distribution assemblies. Its 3-pole busbar system supports a maximum rated current of 320 A, while provision for up to twelve NH00 disconnectors enables multiple fused outgoing circuits to be arranged within one modular section.
Because the MBT337 is supplied unpopulated, compatible NH00 fuse switch disconnectors can be selected separately to suit the required circuit configuration. The 3PW, 4 RE format provides substantial installation capacity while retaining the modular construction principles of the ABB CombiLine system.
Typical Applications
- Low-voltage electrical distribution boards.
- ABB CombiLine cabinet systems.
- NH00 fused outgoing circuits.
- Commercial and industrial power distribution.
- Sub-distribution and switchgear assemblies.
- Multi-circuit fused distribution panels.
