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2CPX041786R9999 ABB MBT245 NH2 Fuse Switch Expansion 2PW
ABB MBT245 is a 2PW CombiLine N NH2 fuse switch expansion module for up to four ZH441 NH2 fuse switch disconnectors with a 3-pole double-storey busbar system rated up to 630 A.
£236.28
Why Choose the ABB MBT245 NH2 Fuse Switch Expansion 2PW?
The ABB MBT245 is a modular NH2 fuse switch expansion from the ABB CombiLine N interior expansion system. Supplied under ABB order code 2CPX041786R9999, this unpopulated module is designed for integrating NH2 fuse switch disconnectors into compatible low-voltage sub-distribution assemblies and belongs to ABB’s DESUJ Sub Distribution product group.
Designed in a 2PW / two-field-width format, the MBT245 measures 500 mm wide × 750 mm high and provides 120 space units. It accommodates up to four NH2 fuse switch disconnectors, providing a structured solution for multiple high-current fused outgoing feeders within a coordinated modular switchboard layout.
The MBT245 is intended for compatible ABB ZH441 NH2 fuse switch disconnectors rated up to 400 A and a 3-pole busbar system. The applicable double-storey busbar arrangement is rated up to 630 A, and the module is designed for installation on a WR mounting frame in cabinets from 225 mm depth.
Key Advantages
- Purpose-designed NH2 fuse switch expansion for ABB CombiLine N assemblies.
- 2PW / 500 mm field width provides capacity for multiple high-current outgoing feeders.
- Accommodates up to four NH2 fuse switch disconnectors.
- Designed for a 3-pole busbar system.
- Supports a maximum rated current of 630 A in the applicable double-storey arrangement.
- Dedicated modular format supports organised professional switchboard construction.
Key Features
- ABB MBT245 NH2 fuse switch expansion module.
- 2PW / two-field-width configuration.
- 5 RE / 750 mm module height.
- 500 mm module width.
- 120 space units.
- Capacity for 4 × NH2 fuse switch disconnectors.
- Designed for ABB ZH441 NH2 fuse switch disconnectors.
- ZH441 devices rated up to 400 A.
- 3-pole busbar system.
- 630 A maximum rated current in the double-storey configuration.
- Designed for installation on a WR mounting frame.
- Supplied as an unpopulated expansion module.
High-Current NH2 Fuse Protection for Distribution Assemblies
NH2 fuse switch disconnectors combine fuse-based overcurrent protection with switching and isolation for high-current low-voltage distribution circuits. The ABB MBT245 provides dedicated positions for up to four compatible NH2 fuse switch disconnectors, enabling several protected outgoing feeders to be integrated within a single two-field-wide CombiLine N module.
The MBT245 is designed around a 3-pole double-storey busbar arrangement rated up to 630 A. Used with compatible ABB ZH441 fuse switch disconnectors and the appropriate WR mounting frame, it provides panel builders with a coordinated platform for constructing organised, serviceable and robust fused distribution systems.
Typical Applications
- ABB CombiLine N sub-distribution assemblies.
- NH2 fused feeder protection and isolation.
- Low-voltage electrical distribution boards.
- Commercial and industrial switchboards.
- Multiple high-current outgoing distribution circuits.
- Panel-building and distribution-board expansion projects.
Technical Specifications
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| Current | 630 A | |
|---|---|---|
| Device Type | Mounting / Expansion Module | |
| Product Series | S&J CombiLine N | |
| Series | CombiLine N | |
| Product type | NH2 fuse switch expansion module | |
| Fuse switch size | NH2 | |
| Expansion width | 2PW | |
| Raster units | 5 RE | |
| Space units | 120 | |
| Module height | 750 mm | |
| Module width | 500 mm | |
| Fuse switch capacity | 4 × NH2 | |
| Compatible ABB fuse switch disconnector | ZH441 | |
| Fuse switch rated current | Up to 400 A per ZH441 device | |
| Busbar system | 3-pole | |
| Busbar configuration | Double-storey | |
| Maximum rated current | 630 A | |
| Busbar conductor size | 30 × 10 mm copper rails | |
| Busbar connection | M10 connection screws | |
| Minimum cabinet depth | 225 mm | |
| Compatible mounting frame | WR | |
| Mounting frame | Ordered separately | |
| Separator shutters | Not included | |
| Fire protection housing suitability | Not suitable | |
| ABB order code | 2CPX041786R9999 | |
| Product group | DESUJ Sub Distribution |
Frequently Asked Questions
What is the ABB MBT245 used for?
The ABB MBT245 is an NH2 fuse switch expansion module designed to accommodate compatible NH2 fuse switch disconnectors within ABB CombiLine N sub-distribution assemblies.
How many NH2 fuse switch disconnectors can the MBT245 accommodate?
The MBT245 provides installation positions for up to four NH2 fuse switch disconnectors.
Which ABB fuse switch disconnector is designed for the MBT245?
The MBT245 is designed for compatible ABB ZH441 NH2 fuse switch disconnectors, rated up to 400 A per device.
What is the maximum rated current of the ABB MBT245?
The MBT245 uses the applicable double-storey 3-pole busbar arrangement with a maximum rated current of 630 A.
What size is the MBT245 module?
The MBT245 is a 2PW / two-field-width module measuring 500 mm wide × 750 mm high and providing 120 space units.
What cabinet depth is required for the ABB MBT245?
The MBT245 is designed for compatible cabinets from a minimum depth of 225 mm. The cabinet depth in the lock area must also be considered when planning the installation.
Which mounting frame is used with the MBT245?
The MBT245 is designed for installation on a compatible WR mounting frame, which must be ordered separately.
What is the ABB order code for the MBT245?
The ABB order code for the MBT245 NH2 fuse switch expansion is 2CPX041786R9999.
Trusted by Panel Builders and Electrical Professionals
ABB CombiLine N NH fuse-switch modules provide panel builders, contractors and electrical engineers with coordinated solutions for high-current fused protection, switching and isolation within professional low-voltage distribution assemblies.
