2CPX041304R9999 ABB MT337 NH00 Fuse Switch Expansion 3PW

Why Choose the ABB MT337 NH00 Fuse Switch Expansion 3PW?

The ABB MT337, order code 2CPX041304R9999, is a mounted CombiLine NH00 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 multiple NH00 fuse switch disconnectors within professional low-voltage distribution cabinets.

The MT337 has a 4 RE / 600 mm height and a three-field width of 750 mm, providing 144 space units. The module is supplied unequipped and is prepared for the installation of up to 12 NH00 fuse switch disconnectors, including compatible ABB ZH411 and ZH412 devices, allowing installers to configure the assembly to suit the required distribution circuits.

Designed for a three-pole 320 A busbar system, the MT337 supports a maximum rated current of 320 A. Plastic covers with cut-outs, 90-degree press-and-turn closures and a RAL 7035 light-grey finish provide a structured cabinet front, while the module is suitable from a cabinet depth of 200 mm and is designed for installation on an ABB WR mounting frame.

Key Advantages

• Purpose-designed NH00 fuse switch disconnector expansion module for ABB CombiLine systems.
• Accommodates up to 12 NH00 fuse switch disconnectors.
• Designed for a three-pole 320 A busbar system.
• Maximum rated current of 320 A.
• Three-field-width, 750 mm design provides substantial installation capacity.
• 144 space units across a 4 RE module height.
• Compatible with ABB ZH411 and ZH412 NH00 fuse switch disconnectors.
• Designed for installation on an ABB WR mounting frame.

Key Features

• ABB CombiLine interior expansion system.
• MT337 mounted NH00 fuse switch disconnector module.
• 4 RE / 600 mm module height.
• 3 panel widths / 750 mm overall width.
• 144 space units.
• Unequipped for installation of up to 12 NH00 fuse switch disconnectors.
• 160 A NH00 fuse switch disconnectors can be installed.
• 320 A maximum module rated current.
• 3-pole busbar system.
• Compatible with ABB ZH411 and ZH412 disconnectors.
• Plastic covers with cut-outs.
• 90-degree press-and-turn closures.
• Light-grey RAL 7035 finish.
• Suitable from a minimum cabinet depth of 200 mm.
• Designed for a WR mounting frame.

High-Capacity NH00 Fused Distribution

NH fuse switch disconnectors combine fused circuit protection with reliable switching and isolation, making them widely used in low-voltage power distribution assemblies. The ABB MT337 provides a dedicated three-field-width platform for installing up to 12 NH00 fuse switch disconnectors, allowing multiple outgoing circuits to be arranged efficiently within a single CombiLine module.

With a 320 A three-pole busbar system, 144 space units and a 750 mm-wide installation area, the MT337 is particularly suited to larger commercial and industrial distribution assemblies. Its modular design, cut-out covers and compatibility with ABB ZH411 and ZH412 fuse switch disconnectors support organised construction and straightforward integration into ABB CombiLine cabinets.

Typical Applications

• Commercial and industrial sub-distribution boards.
• Multi-circuit NH00 fused power distribution.
• Electrical distribution cabinets and switchboards.
• Low-voltage circuit protection and isolation.
• Building-services power distribution systems.
• ABB CombiLine cabinet expansion and interior fit-out.