Why Choose the ABB MBT336 NH00 Fuse Switch Expansion 3PW?
The ABB MBT336 is a modular NH00 fuse switch expansion designed for ABB CombiLine sub-distribution assemblies. Supplied under ABB order code 2CPX041772R9999, this unpopulated interior fitting kit provides a dedicated section for installing NH00 fuse switch disconnectors and is part of ABB’s DESUJ Sub Distribution product group.
Designed in a 3PW / three-field-width format, the MBT336 measures 750 mm wide × 300 mm high × 200 mm deep and provides 72 space units. The module is designed to accommodate up to six NH00 fuse switch disconnectors, including compatible ABB ZH411 and ZH412 devices, providing a structured solution for multiple fused outgoing circuits.
The MBT336 is designed for a 3-pole 320 A busbar system and has a maximum rated current of 320 A. Its covers are manufactured from plastic in RAL 7035 with equipment cut-outs and 90-degree press-and-turn closures, while installation is suitable in compatible cabinets from 200 mm depth.
Key Advantages
- Purpose-designed NH00 fuse switch expansion for ABB CombiLine systems.
- 3PW / 750 mm field width provides capacity for multiple fused outgoing circuits.
- Accommodates up to six NH00 fuse switch disconnectors.
- Designed for a 3-pole 320 A busbar system.
- Maximum rated current of 320 A.
- Compatible with ABB ZH411 and ZH412 NH00 fuse switch disconnectors.
Key Features
- ABB MBT336 NH00 fuse switch expansion.
- 3PW / three-field-width configuration.
- 2 RE / 300 mm module height.
- 750 mm module width.
- 200 mm module depth.
- 72 space units.
- Provision for six NH00 fuse switch disconnectors.
- 3-pole busbar configuration.
- 320 A maximum rated current.
- Plastic covers with equipment cut-outs and 90-degree press-and-turn closures.
- RAL 7035 cover finish.
- Supplied as an unpopulated, unassembled kit.
Modular NH00 Fuse Protection for Distribution Assemblies
NH00 fuse switch disconnectors combine fuse-based circuit protection with switching and isolation functions for low-voltage distribution systems. The ABB MBT336 provides a dedicated three-field-wide installation section capable of accommodating six compatible NH00 fuse switch disconnectors, making it suitable for constructing multiple protected outgoing feeders within a compact modular assembly.
The MBT336 is designed around a 3-pole busbar system rated up to 320 A and can be equipped with compatible ABB ZH411 or ZH412 NH00 fuse switch disconnectors. Its coordinated CombiLine format, protective covers and compatibility with EDF and WR mounting structures support organised, accessible and professional switchboard construction.
Typical Applications
- ABB CombiLine sub-distribution assemblies.
- Low-voltage electrical distribution boards.
- Multiple NH00 fuse-switch outgoing circuits.
- Commercial and industrial switchboards.
- Fused feeder protection and isolation.
- Panel-building and distribution-board expansion projects.
