The Reliance Controls Pro/Tran Q310A manual transfer switch is designed for indoor use to control a generator up to 7500 running watts. The Q310A has one-inch interchangeable circuit breakers, including a 30A double-pole circuit breaker and a 20A double-pole circuit breaker to handle heavier loads, and single-pole 15A for lighter loads. The 15A circuits in the transfer switch may be connected to 15A or 20A circuits in the load center. The circuit breakers in the Q310A are easily replaced, and the 30A and 20A double-pole circuits may be replaced with 15A or 20A single-pole breakers if desired. The PRO/Tran Q310A supports up to ten household circuits. The Q310A is suitable for hardwire connection, but a cord connection is easy as well with the optional flanged inlet (included) for direct connections to the transfer switch.  A power inlet box (purchased separately) for remote connections can also be used. Analog wattmeter included.  This model is a build to order part and typically ships within 7 business days from time of order.