{"product_id":"aa23a-eaton-overload-relay-45-amp-3-pole","title":"Eaton AA23A NEMA A200 Thermal Overload Relay | 3-Pole | 26.3–45A | Class 20","description":"\u003ch2\u003eEaton AA23A – NEMA A200 Thermal Overload Relay | 3-Pole | 26.3–45A | Class 20\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eEaton AA23A\u003c\/strong\u003e is a heavy-duty, ambient-compensated NEMA A200 Type A thermal overload relay engineered to protect three-phase industrial motors from damaging overload conditions. Covering a full-load current range of \u003cstrong\u003e26.3 to 45 amperes\u003c\/strong\u003e with Class 20 trip characteristics, the AA23A is the go-to choice for NEMA Size 2 motor starter applications.\u003c\/p\u003e\n\u003cp\u003eAlso known as the \u003cstrong\u003eCutler-Hammer AA23A\u003c\/strong\u003e, this relay mounts directly to Eaton Freedom Series NEMA contactors and features a built-in 1NC auxiliary contact for control circuit feedback and interlocking.\u003c\/p\u003e\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e AA23A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Eaton (Cutler-Hammer)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e NEMA A200 \/ Freedom Series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay Type:\u003c\/strong\u003e Thermal, Type A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Class:\u003c\/strong\u003e Class 20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Load Current Range:\u003c\/strong\u003e 26.3–45A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuxiliary Contact:\u003c\/strong\u003e 1NC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Starter Mounted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmbient Compensation:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e UL Listed, CSA Certified\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNEMA Size:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose the Eaton AA23A?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmbient Compensated:\u003c\/strong\u003e Accurate trip performance is maintained across varying installation temperatures — minimizing nuisance trips in warm enclosures or outdoor locations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass 20 Trip Curve:\u003c\/strong\u003e Allows sufficient motor acceleration time while still protecting against sustained overload — ideal for pumps, fans, and compressors with longer ramp-up times.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Starter Mount:\u003c\/strong\u003e Clips directly onto Eaton NEMA A200 contactors for a compact, secure fit without additional hardware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1NC Auxiliary Contact:\u003c\/strong\u003e Enables motor fault indication and PLC\/control circuit integration for automated shutdown and alarm systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProven Eaton Reliability:\u003c\/strong\u003e Part of the trusted Freedom NEMA series, widely specified and used across industrial facilities worldwide.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNEMA Size 2 three-phase motor starters\u003c\/li\u003e\n\u003cli\u003ePump motor protection (15–25 HP range)\u003c\/li\u003e\n\u003cli\u003eCentrifugal fan and blower control panels\u003c\/li\u003e\n\u003cli\u003eAir compressor motor starters\u003c\/li\u003e\n\u003cli\u003eIndustrial HVAC and process equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eThe AA23A is designed for use with Eaton A200 NEMA Size 2 motor starters and Freedom Series contactors. It is a direct replacement for Cutler-Hammer Type A overload relays in 3-pole manual reset applications. For alarm contact functionality, see the \u003cstrong\u003eAA23AB\u003c\/strong\u003e variant with Form C (1NC + 1NO) auxiliary contacts.\u003c\/p\u003e","brand":"Eaton","offers":[{"title":"New","offer_id":48396197363960,"sku":"AA23A-N","price":275.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/1209\/3176\/files\/AA23A.png?v=1779906050","url":"https:\/\/alphabreakersandcontrols.com\/products\/aa23a-eaton-overload-relay-45-amp-3-pole","provider":"Alpha Breakers \u0026 Controls","version":"1.0","type":"link"}