Overhead earth disconnect switch RUNMp III SA 24/4S 03-028

Product features

• High reliability and safety in medium voltage network protection.

Air disconnect switch-earthing device – reliable protection of medium voltage networks

The RUNMp III SA 24/4 disconnect switch-earthing device is a device designed for safely disconnecting and grounding circuits in overhead medium voltage distribution networks. The design of this apparatus, developed by ALPAR, combines the functionality of a disconnect switch and an earthing device in a single module, simplifying installation and providing comprehensive installation protection. This is particularly important during maintenance and repair work, where quick and reliable isolation of a network segment is crucial.

Construction and application

This device is characterized by a modular construction, allowing for flexible adaptation to different pole and line configurations. The design based on a common drive for all poles ensures simultaneous switching on and off, minimizing the risk of damage. The RUNMp III SA 24/4 disconnect switch-earthing device is designed for vertical mounting on a pole, making it easy to integrate with existing infrastructure. Made of durable materials, including hot-dip galvanized steel elements and (porcelain or silicone) insulators, it guarantees long-lasting and reliable operation even in harsh weather conditions.

• Common frame and drive: Enables simultaneous operation of all poles, increasing safety and efficiency.
• Modular construction: Allows for easy adaptation to specific installation requirements.
• Durable materials: Hot-dip galvanized steel and insulators provide corrosion and weather resistance.
• Vertical mounting: Facilitates integration with existing pole infrastructure.
• Earthing function: Provides safe isolation of a network segment during maintenance work.

Technical parameters and compliance with standards

The RUNMp III SA 24/4 disconnect switch-earthing device has been designed in accordance with applicable safety standards, including PN-EN 62271-103:2011 and PN-EN 61140:2005/A1. It is intended for operation in 24 kV networks with a continuous rated current of 400 A and withstands short-circuit currents up to 16 kA. This ensures effective protection of the installation against overloads and short circuits. The device is characterized by high technical parameters and flexibility in terms of cooperation with motor drives enabling remote control via radio. In addition, a flexible movable connection minimizes the risk of damage to the line working conductors during operation.