3-pole power disconnector 1000A BG4 N4-1000 266026

Characteristics and Application

A three-pole power disconnector with a rated current of 1000 A is designed for installation in distribution boards where reliable circuit isolation is required at voltages up to 690 V. Thanks to its bolted connection capability and intermediate mounting option, it is suitable for both new industrial projects and the modernization of existing power supply systems. The optional motor drive and undervoltage release enable automation of the disconnection process, which is particularly useful in applications requiring rapid response to changes in network conditions (e.g., overvoltage protection).

Key Features and Benefits

• Latching mechanism – ensures secure lever locking, eliminating the risk of accidental switching during operation.
• Lever as an actuating element – intuitive manual operation, simultaneously compatible with the optional motor drive for remote control.
• IP20 protection on the front – protection against accidental contact with moving parts while maintaining a compact design.
• Short-circuit current withstand capability of 25 kA – guarantees durability during short-term short circuits, enhancing the safety of the entire installation.
• Rated operating power 560 kW (AC‑23, 400 V) – allows connection of large industrial loads without risk of overheating.
• Black color of the control element – facilitates identification among other distribution board components.
• No auxiliary contacts – simplified design reduces the number of potential failure points and eases maintenance.
• Option to equip with an undervoltage release – automatic disconnection when the voltage exceeds a set value, protecting connected devices from damage.

Mounting and Compliance with Standards

The disconnector is intended for permanent mounting in distribution cabinets (intermediate mounting), ensuring mechanical stability even under intensive use. The construction meets the requirements of standards IEC/EN 60204, IEC/EN 60947‑3, and VDE (0113, 0660, 0160‑100), giving installers confidence in correct protection classification and operational safety. Additionally, the option to equip with a motor drive allows integration with building or industrial automation systems, while available accessories (e.g., mechanical locks or undervoltage releases) enable full customization of the solution to meet specific project requirements.