OEM Carrier 1-Pole 30 Amp 24V Contactor HN51KC024 for Model PH13NR02400GAAAA

This OEM Carrier single-pole contactor (part# HN51KC024) is the factory-specified replacement for the Carrier PH13NR02400GAAAA heat pump condenser. The contactor is the high-voltage relay that the 24V control board energizes every time there is a call for cooling or heating — closing the circuit to send line voltage to the compressor. When it fails, you'll typically experience an air conditioner that won't turn on at all, a compressor that hums but won't start, or a unit that runs continuously without cycling off. Burnt or pitted contacts are the most common sign of failure and are visible upon inspection of the contact block.

• Specs: 1-Pole configuration | 30 Amp rated load | 24 VAC coil voltage | 50/60 Hz | OEM part# HN51KC024
• OEM vs Generic: This is the genuine Carrier factory OEM contactor, engineered to exact coil pull-in voltage and contact current ratings. Generic contactors may use lower-grade silver-alloy contacts that arc and pit faster, shortening compressor life and increasing nuisance service calls.
• Install Difficulty: 2/5 — Shut off all power at the disconnect and breaker before touching any components. Photograph all wiring before disconnecting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Verify 24V coil pull-in after installation. Professional installation recommended if unfamiliar with line-voltage wiring.
• Warranty & Shipping: 1-year OEM factory warranty. In stock and ships same business day from our warehouse — get your system back online fast.

Compatibility: Designed for Carrier model PH13NR02400GAAAA residential heat pump condensers specifying OEM part number HN51KC024. Also cross-references to Carrier Bryant and Payne systems listing this part number. Always verify the data plate and original part number before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy.