OEM Carrier 3-Pole Contactor 40A 208/240V for Model 07EB033921

This OEM Carrier contactor (part #HN53CD208) is the factory-specified replacement for the Carrier 07EB033921 commercial HVAC unit. The contactor acts as a high-voltage relay, switching line-voltage power to the compressor and fan motors when the thermostat or control board signals a call for cooling. When the contactor fails — due to worn or pitted contacts, a stuck plunger, or a burned coil — the system will not respond to a demand for cooling, or may run continuously without cycling off. Contactor failure is one of the most common service calls in commercial HVAC.

• Specs: 3-Pole | 40A FLA / 160–240A LRA | Coil Voltage: 208–240V 50/60Hz | 240–600 VAC load circuit | 4-hole mount | OEM Part #HN53CD208
• OEM vs Generic: This is the genuine OEM Carrier contactor with factory-matched contact ratings and coil pull-in voltage. Generic aftermarket contactors often use lower-grade silver-alloy contacts that arc and pit faster, shortening compressor life and increasing callback rates.
• Install Difficulty: 3/5 — De-energize and lock out the unit before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, and a non-contact voltage tester. Photograph all wiring before disconnecting. Verify coil voltage on unit data plate matches 208–240V before installing.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model 07EB033921. Verify 3-pole configuration and 208/240V coil voltage against your unit's data plate before ordering. Need help confirming fitment? Our HVAC parts specialists are available to verify compatibility before you buy.