transfer switchtransfer switch allows you to switch between two or more power sources. An Interlock is a device that prevents a breaker or switch from being toggled. In the situation of two power sources, an interlock is used to allow only one power source to be on at a time.
What is an automatic transfer switch?
An automatic transfer switch (ATS) is a device that automatically transfers a power supply from its primary source to a backup source when it senses a failure or outage in the primary source.
What are the two types of automatic transfer switches?
There are two types of automatic transfer switches, circuit breaker and contactor. The circuit breaker type has two interlocked circuit breakers, so only one breaker can be closed any anytime.
How do I choose an automatic transfer switch?
Keeping it simple, the transfer switch should match the electrical panel’s main breaker. For instance, a 200-amp main breaker needs a 200- amp automatic transfer switch. To ensure the system operates efficiently and safely, the size of your generator dictates the amperage required of your automatic transfer switch.
How much does it cost to install automatic transfer switch?
A transfer switch allows you to power any of those—and skip the extension cords. Plan on a cost of $500 to $1,500 for the switch, including installation, which usually takes less than a day.
Can you run a generator without a transfer switch?
Verdict. You should only use an interlock kit to use a generator without a transfer switch. That’s the only right way to deal with such a situation. Don’t try methods that might be illegal in your states.
