Bard 1804-0386 Pressure Switch

The Bard 1804-0386 is a heavy-duty low pressure switch engineered for precision monitoring in HVACR systems. As a critical safety component, this auto-reset pressure control is designed to protect the compressor from damage caused by loss of charge or restricted airflow. This OEM Bard replacement part features a factory-calibrated set point, ensuring seamless integration with existing control boards and wiring harnesses. Built for durability in demanding environments, the high-side pressure switch monitoring capabilities help maintain system equilibrium and prevent vacuum operation. For service technicians, the 1804-0386 provides a reliable solution for restoring factory-spec operation to Bard wall-mount units and heat pumps. Utilizing a robust diaphragm and high-grade electrical contacts, this low pressure cut-out switch ensures consistent cycling and long-term diagnostic accuracy for professional contractors managing commercial or industrial climate control equipment.

• Direct OEM Compatibility: Precise fit for Bard wall-mount units, eliminating the need for field modifications or bracket adjustments.
• Automatic Reset Functionality: Restores circuit continuity automatically once pressures return to the safe operating range, reducing unnecessary truck rolls.
• Rugged Construction: Engineered to withstand vibration and thermal cycling common in outdoor condenser sections.
• System Protection: Effectively prevents compressor overheating and oil migration issues associated with low refrigerant levels.

What is the reset type for the Bard 1804-0386?
This is an automatic reset switch, meaning it will close the circuit once the system pressure rises above the designated cut-in point.

Can this switch be used in systems with alternative refrigerants?
The 1804-0386 is designed to meet the technical specifications of the original Bard equipment. Always verify that the pressure ratings match the refrigerant saturation curves of your specific application.

How do I confirm this is the correct switch for my unit?
Cross-reference the part number with your unit's wiring diagram or serial plate to ensure this low-pressure control matches the factory safety circuit requirements.

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.