Disconnect switch 4P 400A HA457

Isolator switch – reliable power disconnection

This 4-pole isolator switch with a rated current of 400A is a robust solution for safely disconnecting electrical circuits. It is suitable for both industrial installations and public buildings where high reliability and certainty of operation are required. The device's design, with a long rotary handle, ensures convenient and intuitive operation.

Functionality and application

The device is designed for mounting on a plate or in distribution boards. Its construction as a permanently mounted device guarantees stability and durability of connections. It performs the function of a safety isolator, a maintenance isolator and a main installation isolator. The rated continuous current of 400A (AC-21 and AC-23) and the switching capacity of 263 kW at 400V make it suitable for protecting circuits with significant power. The locking mechanism further increases safety by preventing accidental switching on or off.

Key features and benefits

• High rated continuous current (400A): enables protection of circuits with high power consumption, ideal for industrial equipment and motors.
• Safety isolator function: provides effective disconnection of the installation in the event of a failure or the need to carry out maintenance work.
• Ability to operate at 380…415 V: compatibility with most standard electrical installations.
• Withstand to short-circuit currents (Icw = 9 kA, Iq = 50 kA): provides protection against the effects of short circuits and overvoltages.
• Solid construction with long rotary handle: facilitates operation and ensures a firm grip during switching.
• Possibility of mounting on a plate and in distribution boards: flexibility in choosing the installation location.
• Rated operating power for AC-23, 400 V at 112 kW: allows protection of a wide range of electrical receivers.
• Locking mechanism: increases safety by preventing accidental switching.

Please remember that electrical installation work should be carried out by a qualified electrician in accordance with applicable standards and regulations. Devices with a voltage above 380V/400V require connection by a specialist company.