The ATS (automatic transfer switch) is used as an auto switch in conjunction with a Powermate Home Standby generator. The ATS switches the powersource from grid or utility company power to the home standby generator when the power goes out. The switch is available in 100 or 200 amp panels equipped with or without load sensors to ensure that your are getting the maximum power from your generator when and where you need it most.
1. What is a generator Transfer Switch and why do I need one?
A transfer switch is an electrical device installed next to your load center that transfers power from your generator to your home and is the key to safe and convenient operation of generators for backup power. Required by the National Electrical Code (NFPA 70), a transfer switch isolates those circuits using generator power during an outage, and eliminates the risk of back feeding the electrical utility which can cause injury or death to utility workers and property damage. Also, using a transfer switch with your generator eliminates the need to run extension cords around the home or office.
2. What size of a transfer switch do I need for my generator?
First, the transfer switch you select should match the maximum continuous wattage rating of your generator. For example, if you have a 5000-watt generator, you should select a transfer switch rated at 5000 watts, such as Model 200660. You may also select a transfer switch that has a higher rating than your generator. (Ex: a 5000-watt generator with a 7500-watt transfer switch is OK.) But NEVER install a transfer switch with a lower rating than your generator. This is dangerous and could cause a fire. (Ex: Never install a 7500-watt generator with a 5000-watt transfer switch.)
Then determine the number of circuits you want to supply power to during a power outage. For most homes, 6 to 10 circuits are sufficient. Most manual transfer switches sold by Gen/Tran are expandable; you can start with a 6 circuit PowerStay™ manual transfer switch and add circuits as your needs change.
4. Does Gen/Tran offer transfer switch for 3-phase applications?
No. Our products are designed and intended for single phase electrical applications only – for residential and small commercial installations. They only work on 120/240 Volt single phase, 50/60 Hertz power.
5. Why are generators rated in watts when most electric tools are labeled in amps?
Generators are rated by output in wattage which takes into account the amperage at both 120 and 240 volts. NOTE: Volts x Amps = Watts (i.e.: 120 volts x 10 amps = 1200 watts) OR Watts/Volts = Amps. For example, a 5000 watt rated generator is capable of producing 20.8 Amps @ 240 Volts or 41.6 amps @ 120 volts. See the following chart for power ratings for common household appliances.
