Why Choose the ABB MH350 S700/750 Expansion 3PW?
The ABB MH350 is a CombiLine N main circuit breaker expansion module designed for ABB S700 switching devices in professional low-voltage sub-distribution assemblies. Supplied under ABB order code 2CPX041339R9999, this mounted module provides a structured solution for integrating S700 equipment with a 40 mm busbar system.
The MH350 is supplied unpopulated for main circuit breakers and accommodates ABB S700 devices from 1 to 4 poles, with a width of 35 mm per pole. It incorporates a ZB5 busbar bracket, covers with cut-out and provision for horizontally arranged busbars, supporting efficient construction of modular distribution boards.
In its 3PW configuration, the MH350 has a width of 750 mm, provides 72 PLE and is suitable for installations from a cabinet depth of 200 mm. The busbar system has a 40 mm centre distance and supports a maximum rated current of 250 A.
Key Advantages
- Purpose-designed S700/750 expansion module for ABB sub-distribution assemblies.
- 3PW configuration with a 750 mm module width.
- Designed around a 40 mm busbar system.
- Supports ABB S700 main circuit breakers from 1 to 4 poles.
- 250 A maximum rated current for robust distribution applications.
- Compatible with both EDF and WR mounting frames.
Key Features
- ABB CombiLine N interior expansion system.
- S700/750 Expansion 3PW configuration.
- Unpopulated module for main circuit breakers.
- 750 mm width and 3-field format.
- 72 PLE installation capacity.
- 40 mm busbar centre distance.
- Supplied with ZB5 busbar bracket.
- Suitable from a cabinet depth of 200 mm.
Structured S700 Distribution for CombiLine N Systems
The ABB MH350 provides the mechanical and busbar-system infrastructure required to integrate S700 main circuit breakers into CombiLine N low-voltage distribution assemblies. Its modular format enables panel builders to create organised circuit protection and distribution layouts while maintaining convenient access for installation and servicing.
With its 3-field width, 40 mm busbar system and 250 A maximum rated current, the MH350 is particularly suited to larger modular distribution arrangements where multiple switching devices must be accommodated within a structured ABB enclosure system.
Typical Applications
- ABB CombiLine N low-voltage distribution boards.
- Commercial and industrial sub-distribution assemblies.
- ABB S700 main circuit breaker installations.
- Modular switchboards and electrical control cabinets.
- Power distribution and circuit protection systems.
- Professional panel-building and switchgear applications.
