ABB has earned the UL98B certification for its 2,000-V OTDC switch-disconnector, the first to do so in the renewable energy industry. Over the last 20 years, solar systems have evolved to handle ...

ABB has announced that its 2,000V OTDC is the first switch-disconnector of this size to receive certification from UL Solutions.

The flap handle assembly (fig.11) sustained significant thermal damage. The handle was found to be firmly seated in the 5-degree flap position, consistent with a normal takeoff flap setting.