Fuse disconnect switch R 303 25 A 3P 606706

Fuse disconnect switch – reliable installation protection

The R 303 insulated disconnect switch is a solid solution for disconnecting and protecting three-phase circuits. The device combines the function of an isolating switch with protection against overloads and short circuits, making it an ideal choice for both professional installers and end users. Designed to work with D0 series fuse links, it provides flexibility in selecting the appropriate protection value.

Functionality and application

The design of the disconnect switch allows for complete separation of the circuit, which is crucial during service and maintenance work. The rated continuous current of 25A makes the device perfect for installations powering motors, pumps, HVAC systems and other devices with medium power consumption. The possibility of mounting on a 35 mm DIN rail facilitates integration with existing switchboards. Thanks to three poles (3P), it is intended for three-phase circuits with a rated voltage of up to 400V AC.

Safety and technical parameters

The R 303 disconnect switch is characterized by a high short-circuit breaking capacity (50 kA), which guarantees effective protection of the installation in the event of a failure. It has a degree of protection of IP40, protecting against accidental contact and the ingress of solid objects larger than 1 mm. The built-in locking mechanism provides additional safety when working with the device. The rated operating voltage is from 12 to 400 V, and the rated withstand short-circuit current Icw is 50 kA. The device is made of high-quality materials, which ensures its durability and reliability. Screw connections provide a secure and stable connection of the wires.

Additionally, it is worth mentioning the compliance with standards and the possibility of use in industrial installations, workshops or commercial buildings – everywhere where reliable disconnection and protection of electrical circuits is required.