This new automatic transfer switch provides a reliable power changeover solution for your generator. Designed for US electrical standards, it features a 100-amp capacity and automatic switching functionality to safely isolate and transfer power between a utility source and a backup generator. This model helps ensure essential circuits remain powered during an outage. The unit comes with free shipping. As a new item, it is ready for installation. Check the listing for full details on specific compatible generator models, precise dimensions, and wiring requirements to confirm it suits your setup. 100AMP Dual Power Automatic Transfer Switch Changeover Isolation Generator USA. Condition: New. Listed at 87.05 USD. Specification: Insulation voltage: 500V Rated voltage: 110/230v Rated current: 100A Rated impulse withstand voltage: 4kV 3C rated voltage range: 37V-440V Size: 245*110*135mm Package weight: Approx. 3.5kg / 127.5oz Package list: 1 * Automatic Transfer Switch.