The SSY-RL is a box cover unit designed to provide overload and short-circuit protection for small motors using plug fuses. Designed for installation on a 4-inch square electrical box, it integrates a single fuseholder, a single ON/OFF switch, an indicator light, and a double receptacle. This unit is rated for 125 Vac at 15A and is suitable for protecting motors up to 1/2 horsepower. The manufacturer specifies that this unit should not be used on DC circuits, ensuring proper application in AC systems. It offers a simple and inexpensive way to control and protect small motor applications by combining multiple functions into a single unit.