{"product_id":"icp-2-pole-contactor-for-rgs121htab0aaaa-30a-40a-24v-oem-options-ships-today","title":"ICP 2-Pole Contactor for RGS121HTAB0AAAA — 30A \u0026 40A 24V OEM Options | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM 2-pole definite purpose contactor fits the ICP \/ Heil \/ Tempstar RGS121HTAB0AAAA system and is offered in both 30 amp (part 1178074) and 40 amp (part 1178211) ratings, each with a 24-volt coil. The contactor is the electrically operated switch that energizes the compressor and condenser fan motor whenever the thermostat calls for cooling. The 24V coil pulls the contacts closed to deliver line voltage to the high-load components. Over time the silver contacts pit, burn, and weld from arcing, and the coil can fail open — the classic symptoms are a system that hums but won't start, a condenser that won't shut off, chattering contacts, or no compressor operation at all. Choose the amp rating that matches your existing contactor.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\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 (30A)\u003c\/td\u003e\n\u003ctd\u003e1178074\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (40A)\u003c\/td\u003e\n\u003ctd\u003e1178211\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003e2-Pole Definite Purpose Contactor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePoles\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmperage\u003c\/td\u003e\n\u003ctd\u003e30A \/ 40A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoil Voltage\u003c\/td\u003e\n\u003ctd\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP \/ Heil \/ Tempstar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM Direct Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDirect OEM replacement for the ICP \/ Heil \/ Tempstar \/ Comfortmaker RGS121HTAB0AAAA and related units using a 2-pole 24V-coil contactor. Match the amp rating (30A or 40A) and coil voltage to the contactor currently installed. Verify your model and serial tag before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the service panel to expose the contactor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every line, load, and 24V coil wire before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Transfer wires one at a time, or label them, then unscrew the old contactor from its bracket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new contactor, reconnect each wire to the matching terminal per your photo, and confirm the coil leads are landed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, call for cooling, and verify the contacts pull in cleanly and the compressor and fan start.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSystem hums or buzzes but the compressor won't start.\u003c\/li\u003e\n\u003cli\u003eBurned, pitted, or welded contacts.\u003c\/li\u003e\n\u003cli\u003eCondenser unit won't shut off when cooling is satisfied.\u003c\/li\u003e\n\u003cli\u003eChattering or buzzing contactor with a weak or open coil.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\u003cp\u003eShips same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"ICP","offers":[{"title":"Direct Replacement","offer_id":63027508216179,"sku":"1178074-GEN","price":28.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63047940374899,"sku":"1178074","price":37.63,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-2pole-1178074_5dd4c775-1e6c-40ca-a4b1-2f643778defb.jpg?v=1782881602","url":"https:\/\/nationalhvacparts.com\/products\/icp-2-pole-contactor-for-rgs121htab0aaaa-30a-40a-24v-oem-options-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}