Fuse disconnect switch 250A, size 1, 1-pole plate mounting, Basic version with box terminals XNH1-1-A250-BT 183050

Fuse disconnect switch – reliable installation protection

This single-pole fuse disconnect switch, designed for plate mounting, is a key element in protecting electrical circuits. Designed to work with NH1 fuse links, it offers effective protection against overload and short circuit. Its robust construction and high short-circuit strength (up to 120kA at 500V or 100kA at 690V) guarantee reliable operation even in harsh conditions.

Construction and application

The XNH1-1-A250-BT disconnect switch is characterized by its versatility of application. Thanks to the possibility of connecting cables from both the top and the bottom, the installation is flexible and adapted to different needs. Screw terminals allow connection of cables with a cross-section from 35 to 150 mm², ensuring a secure and stable connection. The device is ideal for building electrical switchboards, providing safe disconnection of the load if necessary. Plate mounting facilitates integration with existing infrastructure.

Key features and benefits

• High short-circuit strength: Provides protection for the installation even with high short-circuit currents – 120 kA (500V) or 100kA (690V). This translates to greater safety and longer system life.
• Adapted to NH1 fuse links: Compatibility with popular NH1 fuse links makes replacement and servicing easier.
• Flexible mounting: Possibility of plate mounting and connection of cables from the top or bottom increases installation convenience and adaptation to different spaces.
• Screw terminals: Allow connection of cables with a cross-section of 35-150 mm², ensuring a solid electrical connection.
• Fuse blown indication (optional): The version with fuse blown indication allows for quick identification of damage and minimizes system downtime.
• Rated continuous current 250A: Allows protection of circuits with significant power consumption.
• Maximum working voltage 690V AC: Allows use in a wide range of industrial and commercial applications.
• Solid construction: Guarantees long-lasting and reliable operation of the device, minimizing the risk of failure.

This disconnect switch is not only a protective element, but also an investment in the safety and stability of the entire electrical installation. Its solid workmanship and thoughtful design make it a trusted choice for both professional installers and end users.