B100 Manual Motor Starters can be used in single-phase applications rated 3 hp at 240V AC or 2 hp at 230V DC. They can also be rated for three-phase applications up to 10 hp at 600V AC. The A302 Manual Starter is a 3-phase manual motor starter and protector with an adjustable bimetallic overload and instantaneous magnetic short circuit trip mechanism. They can be field wired for single-phase motor applications by connecting the 3 poles in series.