NH1 fuse disconnect switch 3P 250A 690VAC plate power supply/discharge screw M10 LT150

NH Fuse Disconnectors – Robust Installation Protection

The Hager LT150 fuse disconnector is a reliable device designed for the safe disconnection of electrical circuits equipped with NH1 type fuse links. The construction based on a mounting plate and M10 screw connections ensures stability and ease of installation. This is an ideal solution for both professionals and end-users who value safety and functionality.

Construction features and application

The LT150 disconnector is designed for mounting on a plate, making it easy to integrate with existing electrical systems. It is intended for use with NH1 fuse links with a rated current of 250A and a voltage of 690VAC. The solid construction with a plombable handle provides additional protection against unauthorized access and manipulation. Designed for circuits requiring high reliability and safety, such as main distribution boards, transformer stations, or motor protection.

Parameters and benefits of use

The device is characterized by a high degree of protection IP3X, which ensures resistance to the ingress of solid objects larger than 2.5 mm. The rated operating current (Ie) is 250A, and the maximum operating voltage (Ue) is 690V AC. Thanks to the use of M10 screw connections, it is possible to connect cables with a cross-section from 6 to 150 mm². It is worth noting the high resistance to short circuits – the conditional short-circuit current (Iq) is as high as 50kA. Such a disconnector guarantees long-term and trouble-free operation of the electrical installation.

The rated operating current is 250A, and the maximum operating voltage is 690V AC. Designed to work with NH1 fuse links, it has a degree of protection IP3X and allows connection of cables with a cross-section from 6 to 150 mm². It exhibits high resistance to short circuits – the conditional short-circuit current (Iq) reaches as much as 50kA.

Additionally, the disconnector has a sliding window for voltage control, which increases safety during maintenance and repairs. Plate mounting allows for flexible adaptation to different installation configurations.