Product Description

The Honeywell C645D 1052 is a diaphragm-actuated air pressure switch designed for precise pressure monitoring and control in HVAC and industrial applications. It features a fixed differential of 1–3 inches of water column (in. wc) and a pressure range of 2–20 in. wc, making it suitable for systems requiring low-pressure detection. The switch is equipped with a snap-action SPDT (Single Pole Double Throw) switch, ensuring reliable operation. It is commonly used in systems such as dishwashers, boilers, and air handling units to monitor and control air pressure conditions.

Technical Specifications

• Model: C645D 1052
• Type: Air Pressure Switch
• Pressure Range: 2–20 inches of water column (in. wc)
• Differential: Fixed 1–3 in. wc
• Switch Type: SPDT (Single Pole Double Throw)
• Electrical Ratings:
• 120 Vac:
• Full Load: 7.4 A
• Locked Rotor: 44.4 A
• 240 Vac:
• Full Load: 3.7 A
• Locked Rotor: 22.2 A
• Max Surge Pressure: 1.5 psi
• Mounting: Designed for surface mounting
• Housing Material: Metal with a clear plastic cover
• Weight: Approximately 720 grams
• Country of Manufacture: Mexico
• Applications: Dishwashers, boilers, air handling units, and other HVAC system