outdoor pole mounted disconnect switch--40.5KV 250a

Product description

The 40.5 - kV 250 - A outdoor pole - mounted disconnect switch is a key electrical device used in outdoor high - voltage power distribution systems. It is mainly installed on poles and is designed to isolate electrical circuits in the power system under normal or maintenance conditions. This switch plays a crucial role in ensuring the safety and reliability of power supply by allowing for the convenient disconnection and connection of power lines when necessary.

Product parameters

• Rated Voltage: 40.5 kV
• Rated Current: 250 A
• Rated Short - Time Withstand Current: Usually in the range of tens of kilo - amperes, which may vary depending on the specific model, for example, 12.5 kA, 16 kA, etc.
• Rated Peak Withstand Current: Generally, it is about 2.5 to 3 times the rated short - time withstand current, such as 31.25 kA, 40 kA, etc.
• Insulation Level: The 1 - minute power - frequency withstand voltage for the phase - to - ground and inter - phase is typically around 95 kV, and the lightning impulse withstand voltage is around 185 kV.

Product features

• High - Voltage Resistance: It is designed to withstand high voltages up to 40.5 kV, ensuring reliable operation in high - voltage outdoor environments.
• Suitable for Outdoor Use: With a pole - mounted design, it is well - adapted to outdoor conditions, being resistant to various weather elements such as rain, snow, and sunlight. It is made of materials with good corrosion resistance and insulation properties to ensure long - term stable operation.
• Good Mechanical Strength: It has a robust mechanical structure that can withstand the mechanical stress caused by high - voltage circuits and external forces. This ensures the stability and reliability of the switch during operation and under various environmental conditions.
• Easy Installation and Operation: The pole - mounted design simplifies the installation process, and the operation mechanism is designed to be simple and convenient, allowing for easy manual or remote operation. This helps to improve the efficiency of power system maintenance and operation.
• High - Quality Contacts: The contacts of the switch are made of high - conductivity materials with good contact performance, which can effectively reduce contact resistance and prevent overheating during operation. This ensures the safe and stable operation of the switch under rated current conditions.