A manual transfer switch is used to connect a secondary power source, such as a portable generator or inverter, to circuits in a home or building that are wired into the electrical system. The transfer switch isolates the generator power from the utility power making it safe to use the generator as a backup source to run critical circuits in the event the main power fails, and eliminate the possibility of “back feeding” the utility line. The Pro/Tran® models can accommodate up to 10 circuits and generators with a 50A 125/250V outlet (around 12,5000 watts), and the Panel/Link® models are rated up to 200 amps and can act as service or feed-through disconnects, stand-alone main panels, or sub panels and can accommodate up to a 31kw generator. More specialized transfer equipment is also available for traffic signals, telecommunications sites, and other light commercial applications.
Many accessories used with generators are available, such as heavy duty outdoor generator power cords, outdoor remote power inlet boxes, and NEMA and non-NEMA plugs and connectors. The Home Protector® (THP) line of products includes various home monitoring systems, alerts and alarms, geared towards providing alerts during power loss, heat loss, and upon detection of unwanted water.