Whether you are troubleshooting a unit that fails to kick on or one that is cycling erratically

This RR Series relay features a 3PDT (3-pole double-throw) contact configuration and is a verified direct replacement for KUP-14A35-120 and KUP14A35-120 models

it maintains HVAC actuator compatibility across a wide ambient temperature range from -40°F to 150°F

Direct OEM Replacement: Replaces legacy part numbers 5H75002-5

Key Benefits: Precise Thermal Cut-Out: Calibrated to open at exactly 195 degrees Fahrenheit to prevent heat exchanger damage

Lennox 43H88 Relay Whether you are troubleshooting aThe Lennox 43H88 Blower Relay is a heavy duty 3PDT (Three Pole Double Throw) electromagnetic switch engineered for precise load management in commercial and residential HVAC systems. Operating on a 24V coil voltage, this inductive rated relay is a direct replacement for the legacy Lennox 43H8801, ensuring a 1: 1 fit for technicians servicing Lennox packaged units and heat pumps. With a 15 Amp contact rating, the 43H88 provides the switching capacity