H2S-1

H2S-1 is a series H2 dual-action explosion-proof pressure switch. It is designed for sequencing two different actions as pressure of a liquid or gas increases or decreases. The design consists of two concentric pistons operated by a single diaphragm with one pressure chamber. Each piston actuates a separate switch independent of the other. The switches may be adjusted to operate together, at opposite ends of the range or at two intermediate set points. The threaded top is removed to field adjust or service switches without disturbing electrical or pressure connections. The Duotect® switch is explosion-proof and weatherproof. It can be mounted in any position and is not affected by vibration. Typical applications include mechanical HVAC or process equipment, chemical, petroleum, food and drug processing industries and process and Industrial applications.

• 3-40psig (0.21-2.76bar) low range, 5-75psig (0.35-5.17bar) high range
• Explosion-proof & weatherproof housing provides device protection for outdoor use/harsh environment
• UL listed, CSA approved to support rigorous process applications and regulations
• Independent piston action design for gas/ liquid allows switches to active together or independently
• Mounting in any position and not affected by vibration provides reliable switching for equipment
• 3/4" female NPT conduit connection and 1/4" female NPT process connection
• 18AWG, 18" (460mm) long connections
• Temperature limit of 275°F (135°C), CSA approved: -20 to 90°C (-4 to 184°F)
• Pressure limit of 1500psig (103bar)
• Two SPDT snap switches