Mars 43052 Enclosed Switching Relay 24VAC 3PDT

Product Description

The MARS 43052 is an enclosed switching relay designed for HVAC control applications requiring reliable 24VAC coil operation with a 3PDT (three-pole double-throw) switching configuration. MARS, short for Motors and Armatures, is a well-established manufacturer of electromechanical components trusted by HVAC technicians, refrigeration contractors, and electrical professionals across residential, commercial, and light industrial settings. This relay serves as a critical control component in heating, cooling, and ventilation systems, where it routes low-voltage signals to activate or deactivate higher-current loads such as blower motors, compressors, and auxiliary heating elements. The enclosed housing protects internal contact surfaces and coil windings from dust, debris, and moisture that are common in mechanical room and air handler environments. The 24VAC coil voltage is the standard control voltage used in the vast majority of HVAC systems, making this relay directly compatible with thermostat outputs, control boards, and zone controllers without the need for additional transformers or signal conditioning. The 3PDT contact arrangement gives technicians three independent switching circuits in a single relay body, which is particularly useful for multi-stage systems, fan speed switching, or any application that requires simultaneous control of multiple circuits from one control signal. Whether replacing a failed relay on a rooftop unit, wiring a new air handler, or building a custom control panel, the MARS 43052 provides a straightforward drop-in solution that meets the demands of professional installation work. Its compact enclosed design makes it easy to mount in tight control panels and junction boxes found in modern HVAC equipment.

• 24VAC coil voltage for direct compatibility with standard HVAC thermostat and control circuits
• 3PDT switching configuration allows simultaneous control of three independent circuits from a single coil signal
• Enclosed housing protects contacts and coil from dust, debris, and moisture in demanding mechanical environments

Product Highlights

The MARS 43052 enclosed switching relay delivers dependable 24VAC 3PDT switching performance in a protected housing, making it a reliable control component for HVAC, refrigeration, and light commercial electrical applications.

Product Information

Standard Information

• Brand: MARS
• Manufacturer Part Number: 43052

Technical Specifications

• Coil Voltage: 24VAC
• Contact Configuration: 3PDT (Three-Pole Double-Throw)
• Enclosure Type: Enclosed
• Component Type: Switching Relay
• Application: HVAC Control, Refrigeration, Light Commercial Electrical