Disconnect switch FR 303 100A 3P 406469

Insulation disconnect switch – safety and reliability in one

The insulation disconnect switch FR 303 100A 3P is a key element of any electrical installation, providing safe disconnection of circuits and enabling maintenance work. The device is designed for mounting in distribution boards, where it effectively protects against the effects of short circuits and overloads. The device's construction, based on solid workmanship and high-quality materials, guarantees long-lasting and trouble-free operation.

Functionality and technical parameters

This three-pole switch with a rated current of 100A is perfect for installations with a voltage of up to 400V. The rated conditional short-circuit current of 4500 kA provides effective protection in the event of sudden overvoltages. Equipped with a locking mechanism, it prevents accidental opening of the circuit during operation, increasing safety. The connection of the main contacts is made using screw connections, which ensures a stable and reliable connection of the wires. The device has a protection degree of IP20, which means protection against touching with a finger and solid objects larger than 12.5 mm.

Mounting and application

The FR 303 switch is designed for permanent mounting, which ensures its stability and reliability. Its compact dimensions (width 53.1 mm, height 88.9 mm, depth 76.4 mm) allow for easy integration with existing distribution boards. Thanks to the ability to function as a main and safety disconnect switch, it is a universal solution for both professional installers and end users. It is ideal for use in residential, commercial and industrial applications.