Fuse disconnect switch 250A, size 1, 3-pole plate mounting, Basic version with box terminals XNH1-A250-BT 183044

Fuse disconnect switch – reliable installation protection

This three-pole fuse disconnect switch, designed for plate mounting, is a key element in power distribution systems. Designed to work with NH1 fuse links, it provides effective protection against overloads and short circuits. Its robust construction and high short-circuit strength make it an ideal solution for both demanding industrial applications and commercial installations.

Construction and application

The XNH1-A250-BT disconnect switch is characterized by its versatility. Thanks to the possibility of connecting wires using screw terminals (35-150 mm²), installation is simple and convenient. It is designed to operate at a maximum voltage of 690V AC, making it suitable for a wide range of electrical installations. The rated continuous current of 250A guarantees stable operation even under heavy load. The short-circuit withstand strength of 120kA (at 500V) or 100kA (at 690V) ensures safety in the event of a failure.

• Mounting: Easy plate mounting – ideal for building switchboards and control cabinets.
• Terminals: Effective and reliable connections thanks to screw terminals with a range of 35-150 mm².
• Protection: Protection against overload and short circuit thanks to cooperation with NH1 fuse links.
• Durability: High short-circuit strength (120kA / 100kA) ensures reliable operation in critical situations.
• Versatility: Can be used in installations with a voltage of up to 690V AC.
• Construction: Made of high-quality materials, which guarantees long life and resistance to environmental conditions.

Key features and benefits

The XNH1-A250-BT disconnect switch is not only a protective element, but also a convenient tool for installers. Thanks to the well-thought-out design, installation is quick and intuitive, and access to the terminals facilitates wire connection. Solid workmanship guarantees long-term and trouble-free operation, minimizing the risk of downtime and costly repairs. For the end user, this means primarily safety and confidence in the operation of the electrical installation. In addition, a version with a fuse link burnout indication (available in other models from the XNH series) allows for quick identification and elimination of the problem.