OEM Carrier 3-Pole Contactor 208/240V Coil HN53CD209 for Model RSA0750M5H

This is the genuine OEM factory-specified 3-pole contactor for the Carrier RSA0750M5H commercial packaged or rooftop unit. The contactor serves as the primary high-voltage switching relay that controls power delivery to the compressor and condenser fan motor. When the thermostat calls for cooling, a low-voltage signal energizes the contactor coil, closing the contacts and sending line voltage to the condensing components. A failed contactor can cause the unit to refuse to start, chatter loudly, short-cycle, or run continuously even after the thermostat is satisfied.

• Specs: 3-Pole configuration | 208/240V coil voltage | 40A FLA (Full Load Amps) | 50A RES rating | OEM Part Number: HN53CD209 | Factory-direct replacement for Carrier RSA0750M5H
• OEM vs Generic: This is a genuine Carrier OEM contactor built to exact factory contact material and coil pull-in voltage specifications. Generic aftermarket contactors often use inferior silver-alloy contacts that pit and weld faster under high inrush current loads, shortening service life significantly on commercial equipment.
• Install difficulty: 3/5 — Requires complete line-voltage lockout/tagout before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (verify coil continuity and contact resistance). Always photograph all wiring terminals before disconnecting. Discharge any capacitors in the circuit before touching adjacent components.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse when ordered before cutoff.

Compatibility: Engineered as a direct OEM replacement for the Carrier RSA0750M5H unit. Verify coil voltage (208/240V) and pole count against your unit's wiring diagram or data plate before ordering — do not substitute a 24V coil variant. Questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us today and ship today.