Dwyer H2S-3 is a dual-action explosion-proof pressure switch with a temperature range of -20 to 275°F (-4 to 135°C). It has a UL listed explosion-proof enclosure and is CSA approved for various hazardous locations. The switch has a 316 SS chamber, FEP diaphragm, and Buna-N O-ring. The electrical rating is 5 A @ 125/250 VAC and 3 A @ 30 VDC. It has two SPDT snap switches and a pressure limit of 1500 psig. The set point can be adjusted using the internal nut, and it can be mounted in any position. The switch has a 10% deadband and a 1/4" female NPT process connection. It also has a 3/4" female NPT conduit connection and an 18 AWG electrical connection.