Isolating switch FR 303 125A 3P 406470

Disconnect switch for safe disconnection of installations

Disconnect switch FR 303 125A 3P is a reliable device used to safely disconnect electrical circuits. It finds application in both home and industrial installations, providing effective isolation and protection against accidental switching on during maintenance or repair work. It is a key element in ensuring safety when working with the electrical installation.

Construction and application

The device from the FR 300 series, manufactured by Legrand, is characterized by a solid construction and durability. It is designed for mounting in distribution boards, where it functions as a main or safety disconnect switch. Thanks to its three poles, it allows for complete disconnection of a three-phase circuit. Made in fixed-device technology, which ensures stability and long-term use. The connection of the main contacts is made using screw connections, which guarantees a secure and reliable connection of the wires. The locking mechanism additionally protects against accidental opening of the circuit during operation.

Key features and benefits

• High resistance to short-circuit currents: Rated conditional short-circuit current Iq at 4500 kA provides effective protection of the installation in the event of a short circuit.
• Safety of use: The safety disconnect function and locking mechanism minimize the risk of electric shock during service work.
• Versatility: The possibility of use as a main disconnect switch allows for central disconnection of power if necessary.
• Solid construction: The device made of high-quality materials guarantees long-lasting and trouble-free operation.
• Compliance with standards: Meets the required safety standards, confirmed by numerous certificates (available in the technical documentation).
• Suitable for continuous operation: Rated continuous current Iu is 125A, which allows for safe loading of the device in continuous mode.
• Protection against touch: Protection degree IP20 provides basic protection against accidental touching of live parts.

Thanks to these features, the FR 303 125A 3P disconnect switch is an ideal solution for both professional installers and end-users looking for a reliable and safe way to disconnect the electrical installation.