Solid state relays from Grainger are switching devices that have no moving parts or arcing contacts to wear out. That means you'll experience less downtime and lower maintenance costs. Solid state relay options are available in most power ratings and AC or DC power equipment. With features such as epoxy sealing to keep out moisture and built-in varistors to protect against surges, a solid state relay performs even in hazardous, wet conditions. Get dependable solid state relays at Grainger.