Fuse disconnect switch R 303 20 A 3P 606705

Fuse disconnect switch – reliable installation protection

The R 303 insulated fuse disconnect switch is a key element of every electrical installation, providing effective protection against overloads and short circuits. Designed to work with D0 fuse links, it offers solid and safe circuit disconnection. The device's fixed construction guarantees stability and long-term reliability.

Functionality and application

The device is designed for mounting in distribution boards, as well as for indirect mounting on a plate. The rated continuous current of 20A and the switching capacity of 8 kW at 400V make the disconnect switch ideal for protecting circuits with medium power. Its three-pole design allows for complete disconnection of the phase, which is particularly important when performing maintenance or repair work. An additional locking mechanism increases safety by preventing accidental switching on of the circuit during work.

Characteristics and benefits

• Versatility: The possibility of mounting both in distribution boards and on a plate provides flexibility in choosing the installation location.
• Safety: The rated withstand current of 50 kA guarantees effective protection against the effects of sudden voltage surges.
• Durability: The solid construction of the fixed device ensures long-term and trouble-free operation.
• Easy installation: Screw connection of the main contacts facilitates and speeds up the installation process.
• Compliance with standards: The degree of protection IP40 provides protection against solid objects with a diameter of more than 1mm – a standard for most indoor installations.
• Wide range of operating voltages: Support for voltages from 12V to 400V allows for use in various electrical systems.
• Resistance to operating conditions: Rated impulse withstand voltage of 6000 V ensures resistance to sudden voltage spikes.

The R 303 disconnect switch is a proven choice for both professional installers and end users looking for a reliable and safe solution to protect their electrical installations.