OEM Carrier 3-Pole Contactor 40 Amp 208/240V for Model YAC48140YAC103T — Part# HN53CD208

This is the OEM factory-specified 3-pole contactor for the Carrier YAC48140YAC103T packaged unit. The contactor is the high-voltage relay that closes the circuit to the compressor and fan motor every time your thermostat sends a call for cooling. When it fails — due to pitted contacts, a burned coil, or a stuck-open or stuck-closed condition — the unit will either refuse to start entirely, run non-stop regardless of thermostat demand, or trip the breaker repeatedly. Replacing with the correct OEM part (HN53CD208) ensures factory-rated performance and longevity.

• Specs: 3-Pole | 40A FLA / 160A LRA | Coil Voltage: 208–240V AC, 50/60 Hz | Screw terminal connections | 208/240V switching voltage | Compact form factor: 2.9"H × 2.4"L × 3.4"W
• OEM vs Generic: The OEM HN53CD208 features factory-matched contact alloy, precise coil pull-in voltage, and correct terminal spacing for a drop-in fit. Generic contactors often use inferior contact materials that arc and pit faster under the high inrush loads of a 4-ton compressor, leading to premature failure.
• Install difficulty: 3/5 — Always disconnect power at the disconnect box and verify zero voltage with a multimeter before touching any terminals. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wire connections before removing the old contactor. Transfer wires one at a time to the new unit to avoid miswiring.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed for the Carrier YAC48140YAC103T packaged unit. Always verify the part number on your existing contactor's label and confirm coil voltage and pole count match before ordering. Our fitment team is available to confirm compatibility — reach out before you buy if you have any questions.