The 411611 damper motor kit is for automation of your gravity damper. It cannot be used alone. A damper provides effective backdraft protection and is easy to install. A motor kit is not for use in explosive or flammable areas or airflows. It requires 115/230V power supply and has .11/.07 running amps. It measures 8.5"h x 4.5"w x 7.375"d.
The 411611 is for use with all exhaust damper models 411 and 611.