GP SWTCHING RELAY 24V

DiversiTech / Supco General Purpose Switching Relay (24V HVAC Relay)

Product description:

• Brand: DiversiTech (also cross-labeled Supco / Mars in some versions)
• Model: D-90340
• Type: 24V control relay (DPDT switching relay)
• Application: HVAC systems

Key features:

• 24 VAC coil voltage
• Typically DPDT (double pole, double throw) contact configuration
• Used for switching fans, compressors, blower motors, and heat circuits
• Handles common HVAC loads (roughly up to ~13–15A depending on voltage)
• Quick-connect terminals for easy replacement in control panels
• Designed for furnaces, air handlers, AC units, and refrigeration systems

What it does:

This relay acts like an electrical “on/off switch” controlled by low-voltage 24V signals, allowing a thermostat or control board to safely turn high-voltage equipment on and off.

Simple takeaway:

It’s a standard HVAC control relay used in furnaces and air conditioners to switch fans, compressors, and heating circuits using a 24V control signal.