Draw-out air circuit breaker 1600A 4P HW1W416DS

Pull‑out air‑break disconnect switch 1600A 4P – solution for industrial and commercial installations

This device is not just a disconnect – it is a key safety component in high‑power supply systems. Designed for mounting in distribution panels, it functions as a main disconnect, safety disconnect, and maintenance disconnect, meaning it can be used to fully isolate a circuit during service without having to remove the entire device.

The built‑in locking mechanism ensures that once switched off it cannot be re‑energized accidentally – this is not merely an extra feature but a requirement for installations where personnel safety is paramount. Front‑central mounting and the option for intermediate mounting provide flexibility in panel design – no need to sacrifice space or compromise layout.

Rated current 1600 A at up to 690 V AC allows handling of large loads – e.g., motors, industrial air‑conditioning, or heating systems. Note: at 400 V the operating power is 720 kW, meaning the unit copes with typical loads in production plants without overheating or losses.

Key feature – pull‑out construction. There is no need to disconnect wires from the panel to replace or inspect the disconnect; simply pull it out on the guide rail – the installer saves time and the user avoids extended downtime. An integrated motor drive enables remote operation (e.g., via a BMS system), and an optional voltage release adds an extra control layer – for instance, automatic shutdown if voltage drops below a set threshold.

IP2X protection on the front face does not protect against water but prevents finger access to live parts – sufficient for closed industrial panels. Insulation voltage 1000 V and impulse withstand voltage 12 kW provide additional safety against network surges.

Four auxiliary changeover contacts (neither normally closed nor normally open) allow status signalling (on/off) directly to a controller or monitoring panel without the need for extra relays.

Operating temperature from –25 °C to +70 °C ensures stable performance even in harsh conditions – e.g., refrigerated warehouses or outdoor protected enclosures.

Compliant with PN-EN-IEC 60947-3, it meets the normative requirements for main disconnects in low‑voltage installations. It is not a re‑closing switch nor an emergency switch – it is a specialized device for control and isolation, not for overload or short‑circuit protection.

All of this is packaged in a solidly engineered block – no unnecessary functions, only those that truly matter in operation.