Series H2 Dual-Action Explosion-Proof Pressure Switches

FEATURES/BENEFITS
• Explosion-proof and weather-proof housing provides device protection for outdoor
use or harsh environment operation
• UL listed, CSA approved to support rigorous process applications and regulations
• Independent piston action design for either gas or liquid allows switches to active
together or independently based on settings
• Mounting in any position and not affected by vibration provides reliable switching for
equipment
APPLICATIONS
• Mechanical HVAC or process equipment
• Chemical, petroleum, food and drug processing industries
• Process and Industrial applications

SPECIFICATIONS

Wetted Materials: 316 SS chamber with FEP diaphragm and Buna-N O-ring standard. Fluoroelastomer or EPDM O-ring optional. Temperature Limit: 275°F (135°C). CSA approved: -20 to 90°C (-4 to 184°F). Pressure Limit: 1500 psig (103 bar). Enclosure Rating: UL listed explosion- proof, Class I, Groups B, C, and D. Class II Groups E, F, and G. Meets NEMA 4X (IP66). CSA optional. Class I, Groups B, C & D. Class II, Groups E, F, & G -20°C ≤ Tamb ≤ 75°C T6 [optional -20°C ≤ Tamb ≤ 40°C T5] Type 4.

Switch Type: Two SPDT snap switches. Electrical Rating: 5 A @ 125/250  VAC. 5 A res., 3 A ind. @ 30 VDC. Gold contacts or 10 A switch optional. Electrical Connections: 18 AWG, 18˝ (460 mm) long. Conduit Connection: 3/4˝ female NPT. Process Connection: 1/4˝ female NPT. Mounting Orientation: Any position. Set Point Adjustment: Internal nut. Weight: 2 lb (.9 kg). Deadband: Approximately 10% of range. Agency Approvals: CSA, UL.