This is a 500 watt, double pole double throw (DPDT) relay manufactured by Standexmeder. This relay is contained in a sealed package, which helps to protect it from external dirt and debris. The LS02-1B66-PP-500W relay is capable of switching 24VDC loads up to 500 Watts. It is commonly used to control motors, lights, fans, and other devices that have a high power requirement.