{"product_id":"icp-2-pole-contactor-for-rgs121heaa0aaaa-30a-40a-24v-coil-ships-today","title":"ICP 2-Pole Contactor for RGS121HEAA0AAAA — 30A\/40A 24V Coil | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eGenuine OEM 2-pole definite-purpose contactor for the ICP \/ Tempstar \/ Heil RGS121HEAA0AAAA. This listing covers the factory-specified contactors — part #1178074 (2-pole, 30 amp, 24V coil) and part #1178211 (2-pole, 40 amp, 24V coil). A contactor is the high-current relay that closes when the 24V control signal energizes its coil, sending line voltage to the condenser fan, compressor, or blower load. Over time the silver contacts pit, arc, and weld from constant make-and-break duty. A failing contactor causes hard starts, chattering, buzzing, or equipment that won't energize at all — and burned, welded contacts can leave a unit running when it should be off.\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 Numbers\u003c\/td\u003e\n\u003ctd\u003e1178074 (30A), 1178211 (40A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eDefinite-Purpose Contactor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePoles\u003c\/td\u003e\n\u003ctd\u003e2-Pole\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmp Rating\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 (Tempstar \/ Heil \/ Comfortmaker)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eRGS121HEAA0AAAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDesigned for the ICP RGS121HEAA0AAAA and equivalent Tempstar, Heil, and Comfortmaker units. Match the amp rating (30A vs 40A) and confirm the 24V coil and 2-pole configuration against the contactor currently in your unit 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 all power at the breaker and verify zero voltage with a multimeter on the line terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the electrical service panel to expose the contactor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every wire and terminal position before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Label and disconnect the line, load, and 24V coil wires, then unscrew the old contactor from its mounting bracket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new contactor, transfer each wire to the matching terminal per your photos, and confirm tight connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and verify the contactor pulls in cleanly with no chatter and the load energizes.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLoud buzzing, humming, or chattering from the contactor\u003c\/li\u003e\n\u003cli\u003ePitted, blackened, or welded contacts\u003c\/li\u003e\n\u003cli\u003eUnit fails to start or starts intermittently\u003c\/li\u003e\n\u003cli\u003eEquipment keeps running after the call for heat\/cool ends (stuck contacts)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\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":"ICP","offers":[{"title":"Direct Replacement","offer_id":63027536855411,"sku":"1178074-GEN","price":32.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63047939817843,"sku":"1178074","price":42.84,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-2pole-1178074_50ee2201-1ec5-4410-98a6-e7f539554b8b.jpg?v=1782881569","url":"https:\/\/nationalhvacparts.com\/products\/icp-2-pole-contactor-for-rgs121heaa0aaaa-30a-40a-24v-coil-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}