Thor THTS-50 Amp Transfer Switch
THOR Manufacturing's Automatic Transfer Switch system is used to automatically switch between two separate 120/240 volt AC power sources, these power sources can be from a Generator, shore power cord or inverter. The function of the THOR Automatic Transfer Switch is to provide a safe and smooth switch over from an inverter or shore power cord automatically when a generator is started and brought online. The electrical contacts in the transfer switch are normally in the open position, once AC voltage is applied to input 1 this will automatically close the contacts in contactor 1 and feeds the output line from the shore power cord or inverter. Once AC power from the Generator is sensed by the transfer switch at Input 2 terminals, this will start a timer and automatically switch over to generator power supply after a 20-30 second delay which ensures the generator has sufficient time to run up to speed before electrical load is applied.
The THTS series is rated for use on circuits capable of delivering 105-130Vac 60 Hz. The THTS-50 is rated for use on circuits capable of delivering 105-130Vac 60 Hz 50Aac. All field wires used have to be rated to at least 105C All field wires used have to be rated to at least 105C. All grounds are connected inside of the THTS-30. THTS-30 is for a 30 Amp AC service. It is installed onto a Power Center. To minimize voltage drop across the wire, install the power center with the THTS-30 as close to the generator and shore power cord entrance as possible. Do not install close to appliances that are a source of heat or water (such as water heaters, furnaces, and under refrigerators). It is not designed for mounting in wet locations.