Fuse switch disconnector Legrand R 303 35A 3-pole 606707

Legrand R 303 is a compact 3-pole fuse switch disconnector rated for 35 A, designed to provide manual switching and overcurrent protection in three-phase electrical installations. Intended for use in distribution boards and industrial or commercial electrical panels, the device enables safe isolation of circuits for maintenance and clear fault separation. The unit combines a switch mechanism with fuseholders to facilitate serviceability and quick replacement of protective elements.

Advantages

The fuse switch disconnector offers a simple and robust mechanical design that allows reliable manual disconnection of three phases. Its 35 A rating makes it suitable for moderate-load circuits while conserving panel space thanks to a compact footprint. The integrated fuseholders permit easy replacement of fuses without disturbing adjacent components, and the visible disconnect position improves safety during maintenance tasks.

Suitable for

• Three-phase distribution boards in commercial and light industrial settings
• Isolation of motors, heaters, and small distribution circuits
• Service panels where manual disconnection and fuse replacement are required

Key specifications

• Poles: 3-pole manual switch with fuseholders
• Current rating: 35 A
• Function: Combined switching and fuse protection for three-phase circuits
• Mounting: Suitable for panel or distribution board installation
• Access: Serviceable fuseholders for straightforward replacement

How to use

Install the device in accordance with applicable electrical standards and local regulations, securing it within the distribution board or panel and ensuring proper connection of the three phase conductors and protective earth where required. Fit appropriate fuses into the fuseholders matching the circuit protection requirements and rated values. Operate the manual handle to switch the unit to the open position before performing any maintenance or when isolating the circuit; verify the disconnect visually and with appropriate test equipment prior to working on the installation.

Usage recommendations

Choose fuses that correspond to the expected load and short-circuit conditions of the circuit. Periodically inspect the switch and fuseholders for signs of wear, overheating, or corrosion, and replace any degraded components. Always follow safety procedures and de-energize circuits before replacing fuses or performing electrical work.