The 120/240 VAC 100-Amp Automatic Transfer Switch from Progressive Dynamics,
Inc. automatically senses generator power and prevents two power sources from
entering the AC Distribution Panel simultaneously. Featuring dimensions of 6 x
12 x 10, the PD53-100 automatic transfer switch offers heavy duty contactors
to prevent contact damage during high current transfer operations, time delay
circuit board to ensure stable generator voltage before transfer and rugged,
heavy-duty, screw-type wiring terminals ready to wire to contactor base.