Why Choose the ABB MH150 S700/750 Expansion 1PW?
The ABB MH150, order code 2CPX041337R9999, is a mounted CombiLine S700/S750 main circuit breaker expansion module designed for ABB electrical sub-distribution systems. Part of the ABB CombiLine N interior expansion system and the DESUJ Sub Distribution product group, it provides a purpose-designed installation platform for ABB S700-series main circuit breakers within professional low-voltage distribution cabinets.
The MH150 has a 2 RE / 300 mm height and a single-field width of 250 mm, providing 24 space units and a useful equipment width of 105 mm. It is supplied unequipped and supports ABB S700 main circuit breakers from one to four poles, with a width of 35 mm per pole.
The module incorporates a four-pole horizontal busbar arrangement with a 40 mm busbar centre distance and ABB ZB5 busbar holder. It is rated up to 250 A at 400 V AC, with a 690 V rated insulation voltage and 6 kV impulse withstand voltage. Covers with equipment cut-outs complete the installation, while both ABB EDF and WR mounting frames can be used and must be ordered separately.
Key Advantages
- Purpose-designed CombiLine S700/S750 expansion module for professional sub-distribution systems.
- Suitable for ABB S700 main circuit breakers from one to four poles.
- Maximum rated current of 250 A.
- Four-pole horizontal busbar system with a 40 mm centre distance.
- Integrated ZB5 busbar holder for structured conductor positioning.
- Compact single-field-width, 250 mm design with 24 space units.
- 105 mm useful equipment width for compatible S700 devices.
- Compatible with both ABB EDF and WR mounting frames.
Key Features
- ABB CombiLine N interior expansion system.
- MH150 mounted S700/S750 expansion module.
- 2 RE / 300 mm module height.
- 1 panel width / 250 mm overall width.
- 24 space units.
- 105 mm useful equipment width.
- Designed for ABB S700 main circuit breakers.
- Supports 1- to 4-pole S700 devices with 35 mm width per pole.
- 250 A rated current.
- 400 V AC rated operational voltage.
- 690 V rated insulation voltage.
- 6 kV rated impulse withstand voltage.
- 74 kA rated peak withstand current.
- 40 mm busbar centre distance.
- ABB ZB5 busbar holder.
- Covers with equipment cut-outs and cover strips for unused openings.
Structured S700 Main Circuit Breaker Integration
Main circuit breaker modules provide a coordinated mounting and busbar interface for incoming or distribution switching devices within low-voltage assemblies. The ABB MH150 combines a dedicated S700 equipment area with a horizontal busbar arrangement, allowing compatible ABB main circuit breakers to be incorporated cleanly into a CombiLine N cabinet.
With a 250 A rated current, four-pole busbar arrangement and compact 250 mm field width, the MH150 is suited to commercial and industrial sub-distribution applications where space-efficient main circuit breaker integration is required. Its compatibility with EDF and WR mounting frames also provides flexibility when configuring ABB CombiLine N distribution assemblies.
Typical Applications
- Commercial and industrial sub-distribution boards.
- ABB S700 main circuit breaker installations.
- Incoming and distribution switching assemblies.
- Electrical distribution cabinets and switchboards.
- Low-voltage power distribution systems.
- Building-services electrical distribution.
- ABB CombiLine N cabinet expansion and interior fit-out.
