Isolating switch FR 304 125A 4P 406490

Isolator switch – reliable disconnection and safety

This four-pole FR 304 isolator switch with a rated current of 125A is a key element of any electrical installation, providing safe and controlled disconnection of circuits. It is suitable for both industrial and commercial installations, as well as residential buildings requiring high reliability. The device's construction, compliant with IEC/EN 60947-3, guarantees its proper operation and long service life.

Functionality and application

The FR 304 switch acts as a main and safety switch, allowing effective isolation of the circuit for maintenance or service work. Its ability to be used in switchboards, thanks to mounting on a TH35 rail, simplifies integration with existing infrastructure. This allows installers to quickly and efficiently integrate it with existing systems. The locking mechanism further protects against accidental switching on during service work.

Key features and benefits

• High rated current (125A): allows use in circuits with high load.
• Rated conditional short-circuit current (4500 kA): provides protection against the effects of short circuits.
• Universal mounting: possibility of mounting on a TH35 rail facilitates installation in various switchboard configurations.
• Safety of use: locking mechanism prevents accidental switching on during maintenance.
• Solid construction: permanently mounted device ensures stability and long-term operation.
• Screw connection: ensures a secure and durable connection of wires.
• Mounting width 4 modules: compact dimensions save space in the switchboard.
• Compliance with standards: meets the requirements of IEC/EN 60947-3, which guarantees safety and reliability.

Thanks to this, both installers and end-users can count on safe and efficient operation of the electrical installation. The possibility of connecting an auxiliary contact (ref. no. 406250) further increases the functionality of the device, enabling remote monitoring of the switch status.