2CPX041315R9999 ABB MT243 NH1 Fuse Switch Expansion 2PW

Why Choose the ABB MT243 NH1 Fuse Switch Expansion 2PW?

The ABB MT243, order code 2CPX041315R9999, is a mounted CombiLine NH1 fuse switch disconnector expansion module designed for ABB electrical sub-distribution systems. Part of the ABB CombiLine interior expansion system and the DESUJ Sub Distribution product group, it provides a purpose-designed installation platform for NH1 fuse switch disconnectors within professional low-voltage distribution cabinets.

The MT243 has a 5 RE / 750 mm height and a two-field width of 500 mm, providing 120 space units. The module is supplied unequipped and is prepared for the installation of up to four NH1 fuse switch disconnectors, allowing the distribution assembly to be configured according to the required outgoing circuits.

Designed for a three-pole busbar system, the MT243 supports a maximum rated current of 630 A. Plastic covers with cut-outs, 90-degree press-and-turn closures and a RAL 7035 light-grey finish provide a structured cabinet front. The module is suitable from a cabinet depth of 225 mm and requires an ABB WR mounting frame, which is ordered separately.

Key Advantages

• Purpose-designed NH1 fuse switch disconnector expansion module for ABB CombiLine systems.
• Accommodates up to four NH1 fuse switch disconnectors.
• Maximum rated current of 630 A for demanding power distribution applications.
• Designed for a three-pole busbar system.
• Two-field-width, 500 mm design provides substantial installation capacity.
• 120 space units across a 5 RE module height.
• Closed cabinet integration using plastic covers with equipment cut-outs.
• Designed for installation on an ABB WR mounting frame.

Key Features

• ABB CombiLine interior expansion system.
• MT243 mounted NH1 fuse switch disconnector module.
• 5 RE / 750 mm module height.
• 2 panel widths / 500 mm overall width.
• 120 space units.
• Unequipped for installation of up to four NH1 fuse switch disconnectors.
• Designed for NH1 fuse switch disconnectors rated up to 250 A.
• 630 A maximum module rated current.
• 3-pole busbar system.
• Compatible with ABB ZH431 NH1 fuse switch disconnectors.
• Plastic covers with cut-outs.
• 90-degree press-and-turn closures.
• Light-grey RAL 7035 finish.
• Suitable from a minimum cabinet depth of 225 mm.
• Designed for a WR mounting frame.

High-Current NH1 Fused Distribution

NH fuse switch disconnectors combine fused overcurrent protection with switching and isolation functions, making them well suited to low-voltage power distribution assemblies. The ABB MT243 provides a dedicated two-field-width platform for installing up to four NH1 fuse switch disconnectors, allowing multiple high-current outgoing circuits to be arranged efficiently within a single CombiLine module.

With a maximum module rated current of 630 A, 120 space units and a 500 mm-wide installation area, the MT243 is suited to demanding commercial and industrial distribution assemblies. Its modular design, equipment cut-outs and compatibility with ABB ZH431 NH1 fuse switch disconnectors support organised construction and straightforward integration into ABB CombiLine cabinets.

Typical Applications

• Commercial and industrial sub-distribution boards.
• NH1 fused power distribution circuits.
• Electrical distribution cabinets and switchboards.
• Low-voltage circuit protection and isolation.
• High-current outgoing feeder circuits.
• Building-services power distribution systems.
• ABB CombiLine cabinet expansion and interior fit-out.