NH SPX1 250A fuse disconnector on base 605204

Fuse disconnector – reliable installation protection

This three-pole fuse disconnector from the SPX series by Legrand is a key element ensuring safety and protection in electrical installations. Designed to work with NH1 fuse links, it enables effective isolation of circuits in the event of overloads and short circuits. The design on a mounting plate facilitates integration with existing systems, and the solid construction guarantees long-lasting and trouble-free operation.

Functionality and technical parameters

The SPX1 disconnector with a rated current of 250A is an ideal solution for both installers and end-users. It provides not only protection against the effects of failures but also ease of use thanks to the simple operating mechanism – the cover handle. Its design allows for quick and easy replacement of the fuse link, minimizing downtime in the installation. The rated operating power for AC-23, 400V is 173 kW, making it suitable for protecting circuits with significant power consumption. The rated continuous current of 250A ensures stable operation under normal loads, and the high rated conditional short-circuit current of 50 kA guarantees resistance to surge currents during short circuits. The possibility of use in a wide range of installations ensures a maximum operating voltage of 800 V. Compatibility with popular NH1 type fuse links and a protection degree of IP40 (protection against contact and solid objects larger than 1mm) further enhance the functionality of the device. Frame terminals provide secure and durable connection of wires.

Mounting and application

The SPX1 disconnector is designed for mounting on a plate, which facilitates its integration with existing distribution boards or enclosures. Its solid construction and high quality of workmanship guarantee reliable operation even in harsh industrial conditions. It can be used as a main disconnector, providing complete disconnection of the circuit from the power supply during maintenance or repair. This makes it a versatile device that can be used in many different facilities – from residential buildings to industrial plants. The location of the drive element on the front side facilitates operation and control of the device status.