Stationary air disconnector 1000A 4P HW1W410FS

Stationary Air Disconnector – Robust Protection for High Currents

The device is designed for installation in distribution panels with a voltage range of 440 V to 690 V. With a rated current of 1000 A and short-circuit withstand capability of 55 kA, it ensures reliable circuit isolation in industrial and commercial environments. The stationary construction type allows for front mounting in a central position, simplifying panel layout and enabling quick access during maintenance.

Key Benefits and Applications

• Operational Safety – Functions simultaneously as a main and safety disconnector, eliminating the need for additional protective components.
• High Short-Circuit Withstand Capability (55 kA) protects the installation against mechanical and thermal damage during sudden faults.
• Motorized Drive with Optional Undervoltage Release enables remote opening and closing of the switch, accelerating maintenance tasks and minimizing the risk of electric shock.
• Latching Mechanism ensures secure locking after manual or automated operation – ideal for applications requiring constant locking.
• Four Poles and Four Switching Contacts allow complete isolation of three-phase circuits and the neutral conductor.
• IP2X Protection Rating safeguards against accidental contact with moving parts while maintaining easy access to the switch.
• Intermediate and Front Mounting – Mounting flexibility allows installation in both traditional busbar systems and special intermediate frames.
• Compliance with Standard PN‑EN‑60947‑355 guarantees adherence to European requirements for air disconnectors.

Construction and Practical Installation Aspects

The device is permanently mounted, eliminating vibrations and ensuring mechanical stability even under intensive operation. Main contacts are connected via busbar connection, reducing installation time and increasing the reliability of electrical connections. The optional motorized drive and undervoltage release can be integrated into building automation systems, enabling integration with energy management systems. Thanks to its compact design and central front-mounting capability, the disconnector does not occupy excessive space in the control cabinet while remaining clearly visible to the operator.

Stationary Air Disconnector 1000 A 4‑P is a solution combining high current capacity with practical control functions – ideal for both professional installers planning new installations and end-users requiring reliable protection for their electrical systems.