{"product_id":"tempstar-1-pole-contactor-for-tca748gka200-30a-24v-w-shunt-ships-today","title":"Tempstar 1-Pole Contactor for TCA748GKA200 — 30A 24V w\/Shunt | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis genuine OEM 1-pole, 30 amp contactor with shunt (part number 1172472) is the line-voltage switch that energizes the compressor and condenser fan on the Tempstar TCA748GKA200. When the thermostat calls for cooling, a 24-volt signal pulls in the coil and the single-pole contact closes to deliver power, while the built-in shunt maintains the parked\/return path on the unswitched leg. After tens of thousands of cycles the contact point burns, pits, or welds, and the coil can open. Symptoms include a unit that hums but won't start, a compressor that runs nonstop from welded contacts, chattering or buzzing, and burnt or pitted terminals. Replacing the worn 1-pole 30A contactor restores clean, reliable switching and protects the compressor from voltage-related damage.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1172472\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003e1-Pole Definite Purpose, w\/Shunt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTempstar (ICP\/Heil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Rating\u003c\/td\u003e\n\u003ctd\u003e30 Amps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePoles\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoil Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eTCA748GKA200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eBuilt as the factory replacement for the Tempstar TCA748GKA200 condenser. This 1-pole 30A 24V contactor with shunt also fits matching ICP, Heil, and Comfortmaker condensing units on the same platform. Confirm the pole count, amp rating, 24V coil, and shunt configuration against your original before installing.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the breaker and disconnect, then verify zero voltage at the contactor with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the condenser service panel to reach the control compartment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every line, load, and 24V coil connection before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Label and disconnect the leads, then unscrew the old contactor from the bracket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new 1-pole contactor and reconnect each wire exactly per your photo, keeping the shunt leg correct.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, call for cooling, and confirm the contactor pulls in and the compressor and fan run.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUnit hums or buzzes but won't start.\u003c\/li\u003e\n\u003cli\u003eCompressor runs continuously from welded contacts.\u003c\/li\u003e\n\u003cli\u003ePitted, burnt, or melted contactor terminals.\u003c\/li\u003e\n\u003cli\u003eChattering coil or intermittent cooling.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\u003cp\u003eShips same day on orders placed before 3 PM CST. 30-day hassle-free returns. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"Tempstar","offers":[{"title":"Direct Replacement","offer_id":63021661192563,"sku":"1172472-GEN","price":26.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048390246771,"sku":"1172472","price":35.04,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-1pole-1172472_f0e282b6-1dc7-4940-9c0d-c9414086eb62.jpg?v=1782957566","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-1-pole-contactor-for-tca748gka200-30a-24v-w-shunt-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}