2CPX041305R9999 ABB MT142B NH1 Fuse Switch Expansion 1PW 250 A

Why Choose the ABB MT142B NH1 Fuse Switch Expansion 1PW?

The ABB MT142B, order code 2CPX041305R9999, is a populated NH1 fuse switch-disconnector expansion module designed for ABB CombiLine low-voltage sub-distribution systems. Supplied mounted and installed for cabinet integration, the module combines an ABB NH1 fuse switch-disconnector with a 3-pole busbar system to provide compact, reliable fused isolation and power distribution.

Designed for professional electrical distribution applications, the MT142B is equipped with one NH1 fuse switch-disconnector and supports a maximum rated current of 440 A in its single-tier configuration. The module incorporates a 3-pole busbar system with M10 connection screws and separator shutters, providing a practical solution for integrating high-current fused outgoing circuits into compatible ABB distribution assemblies.

The MT142B occupies 1 panel width (PW/FB) and 3 grid units (RE), corresponding to dimensions of 450 mm high × 250 mm wide × 200 mm deep and 36 space units (PLE). It is suitable for cabinets from 200 mm deep and can be installed on compatible EDF or WR mounting frames, which must be ordered separately.

Key Advantages

• Complete NH1 fuse switch-disconnector expansion module for ABB CombiLine systems.
• Supplied populated with one NH1 fuse switch-disconnector.
• 250 A NH1 fuse switch-disconnector for fused circuit protection and isolation.
• Maximum module rated current of 440 A in the single-tier configuration.
• Integrated 3-pole busbar system for professional power distribution.
• M10 connection screws support secure electrical connections.
• Compact 1-panel-width format for efficient cabinet integration.
• Suitable for both EDF and WR mounting frames.

Key Features

• ABB MT142B NH1 fuse switch-disconnector module.
• ABB order code 2CPX041305R9999.
• Part of the ABB CombiLine interior expansion system.
• Populated with 1 × NH1 fuse switch-disconnector.
• 250 A fuse switch-disconnector rating.
• 440 A maximum rated current for the single-tier busbar arrangement.
• 3-pole busbar system.
• Includes M10 connection screws.
• Equipped with separator shutters.
• 1 panel width (PW/FB) and 3 grid units (RE).
• 36 space units (PLE).
• Plastic cover with equipment cut-out in RAL 7035 light grey.
• 90-degree push-turn cover fastener.
• Suitable for cabinets from 200 mm depth.

Reliable Fused Isolation for Low-Voltage Distribution

NH fuse switch-disconnectors combine fuse protection with load isolation, allowing electrical circuits to be protected against overcurrent while also providing a means of disconnecting the circuit for operation or maintenance. The ABB MT142B integrates an NH1 fuse switch-disconnector into a modular CombiLine assembly, simplifying the construction of fused outgoing circuits within professional distribution cabinets.

The MT142B incorporates a 3-pole busbar arrangement and is designed for a maximum module rated current of 440 A in its single-tier configuration. Its compact 1-panel-width construction and compatibility with EDF and WR mounting frames make it suitable for modular sub-distribution assemblies where space-efficient fused switching and isolation are required.

Typical Applications

• Low-voltage electrical distribution boards.
• Commercial and industrial sub-distribution systems.
• ABB CombiLine cabinet assemblies.
• Fused outgoing circuits requiring NH1 protection.
• Industrial power distribution and circuit isolation.
• Electrical switchgear and control cabinets.
• Three-pole distribution systems requiring fused load disconnection.