QPH32.060M00 Siemens Gas Pressure Switch

Overview

The Siemens QPH32.060M00 is a high-performance gas pressure switch designed for the supervision of gas or air pressures in commercial and industrial burner applications. This manual reset switch is engineered to detect high-pressure conditions, ensuring safety by opening or changing over the electrical circuit when the pressure exceeds the setpoint. It is built to withstand demanding environments, featuring a NEMA 4 rating for outdoor use and compatibility with a wide range of gases including natural gas, propane, and hydrogen.

Features

• Manual reset functionality specifically designed for high-pressure monitoring
• NEMA 4 rated enclosure provides protection against dust and water for outdoor applications
• Ventless operation capability up to 7 psig
• Integrated gold-plated contacts ensure reliable electrical switching and long service life
• Built-in side test connection for easy attachment of a manometer or pressure gauge
• Flexible mounting orientations including horizontal and vertical positions

Specifications

• Pressure Range: 12 to 60 inches water column (wc)
• Maximum Operating Pressure: 15 psig
• Voltage Ratings: 24 to 125 VAC or 24 to 48 VDC
• Temperature Rating: -40 F to 140 F (-40 C to 60 C)
• Connections: 1/4 inch NPT pressure (+) and 1/8 inch NPT vent/pressure (-)
• Materials: Die-cast aluminum lower body with a fiberglass-reinforced plastic upper body
• Approvals: cULus listed and FM approved

Applications

• Supervision of air or gas pressures in gas trains of industrial and commercial burners
• High gas pressure limit control in HVAC systems and boiler plants
• Monitoring of dry gases such as natural gas, propane, butane, hydrogen, and biogas
• Integration into OEM gas-fired equipment for safety shut-off sequences