Isolating switch FR 303 40A 3P 406466

Isolating switch – reliable power disconnection

Isolating switch FR 303 40A 3P is a device used to safely disconnect electrical circuits, providing a clear isolation gap. The device is designed for installation in distribution boards and to function as a main switch, guaranteeing comprehensive protection of the electrical installation. Thanks to its solid construction and high technical parameters, this switch finds application in residential, commercial and industrial construction.

Features and application

The FR 303 switch features a three-pole design and a rated current of 40A, making it an ideal solution for circuits with medium power. Its width of 3 modules facilitates mounting in standard distribution boards. Made of high-quality materials, it ensures durability and reliable operation for a long time. The locking mechanism increases safety, preventing accidental switching on of the circuit during maintenance or repair work. The possibility of connecting wires using screw connections ensures a secure and stable electrical connection.

• Safety first: The safety switch function guarantees effective protection against electric shock during maintenance or repair of the installation.

• Versatility: Suitable for mounting in distribution boards and as a main switch.

• Durability: Solid construction and high-quality materials ensure long-term operation.

• Easy installation: Compact dimensions (width of 3 modules) facilitate installation in standard distribution boards.

• Protection against errors: The locking mechanism prevents accidental switching on of the circuit during service work.

• High resistance: Rated conditional short-circuit current at 4500 kA provides resistance to overloads and short circuits.

Technical parameters and construction

The FR 303 switch has been designed with the requirements of modern electrical installations in mind. Its construction is based on a solid, fixed mounting, which ensures stability and reliable operation. The device meets safety standards and has an IP20 protection rating on the front side, protecting against accidental contact. The maximum rated operating voltage is 400 V AC, making it compatible with most standard electrical installations. The grey operating lever makes it easier to identify and operate the device.

The device is characterized by a rated current of 40 A, a rated operating voltage of 400 V AC and three poles. The rated conditional short-circuit current reaches a value of 4500 kA, and its dimensions are width 53.1 mm, height 88.9 mm and depth 76.4 mm. The IP protection rating is IP20. The switch complies with IEC/EN 60947-3 standards, confirming its safety and reliability. It is a key element of every electrical installation, providing safe and effective power disconnection when needed.