Antunes Controls 8102111203 Pressure Switch

The Antunes Controls 8102111203 is a field-proven high gas pressure switch designed for critical monitoring in industrial heating and commercial combustion systems. As an RHGP-G model, this adjustable gas pressure switch features an auto-reset mechanism that automatically restores the electrical control circuit once gas pressure drops below the calibrated set point. It operates within a versatile 2" to 20" W.C. range, making it a reliable choice for HVAC high limit controls and industrial burner safety strings. The unit is equipped with a 1/4" NPT connection and features a SPDT switch configuration (Single-Pole, Double-Throw), providing flexible wiring options for normally open or normally closed logic. Built with a rugged die-cast aluminum base and a durable plastic enclosure, this ventless switch is engineered to withstand ambient temperatures from -40°F up to 140°F. Professionals value the 8102111203 for its NEMA 1 rated construction and its ability to provide stable, repeatable performance without the need for manual intervention after a high-pressure trip event.

• Automatic Reset Logic: Eliminates the need for manual site visits to reset the system after transient pressure spikes return to normal levels.
• Precision Adjustability: Features an easy-to-read scale for fine-tuning the trip point between 2" and 20" W.C. to match specific appliance requirements.
• Industrial Durability: Constructed with a die-cast aluminum inlet base capable of handling surge pressures up to 15 PSI.
• Simplified Installation: Standard 1/4" NPT threaded connection and 1/2" conduit knockout ensure compatibility with standard gas trains and electrical fittings.

Is the Antunes 8102111203 suitable for outdoor use?
Standard models are rated for indoor environments. For applications requiring weather resistance, a NEMA 3S or NEMA 4 conversion kit must be utilized to protect the internal electrical components from moisture and dust.

Does this RHGP-G switch require an external vent line?
No, the Antunes Model G series is designed as a ventless pressure switch, which simplifies the gas train layout by eliminating the need for atmospheric venting pipes.

What is the maximum operating pressure for this switch?
While the adjustable range is up to 20" W.C., the unit is rated for a maximum operating pressure of 6 PSI and can withstand surge pressures up to 15 PSI without damage to the internal diaphragm.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.