{"product_id":"sprecher-schuh-ct7n-37-c21-bimetallic-overload-relay-17-5-21-5-a-pack-1","title":"Sprecher \u0026 Schuh CT7N-37-C21 Bimetallic overload relay 17.5-21.5 A (Pack 1)","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe Sprecher \u0026amp; Schuh CT7N-37-C21 is a bimetallic thermal overload relay that provides motor protection across a 17.5–21.5 A trip range. It mounts directly to CA7 series contactors and offers Class 10 time\/current characteristics, ambient temperature compensation, and selectable manual or automatic reset. The unit includes an isolated NO signal contact and is suitable for DC applications and monitoring variable frequency drives, supporting single-phase differential tripping.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBimetallic thermal trip design with Class 10 characteristics and 17.5–21.5 A range\u003c\/li\u003e\n  \u003cli\u003eDirect mount for CA7-30..37 contactors; calibrated at operating temperature\u003c\/li\u003e\n  \u003cli\u003eSelectable manual or automatic reset with separate isolated NO signal contact\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Highlights\u003c\/h4\u003e\n\u003cp\u003eBimetallic overload relay for motor protection; direct mount to CA7 contactors; 17.5–21.5 A range; Class 10; selectable reset; isolated NO trip signal.\u003c\/p\u003e\n\u003ch3\u003eProduct Information\u003c\/h3\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SPRECHER \u0026amp; SCHUH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: CT7N-37-C21\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: Sprecher \u0026amp; Schuh\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: CT7N-37-C21\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: CT7N\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Bimetallic Overload Relay\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent Range\u003c\/strong\u003e: 17.5 - 21.5 A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrip Class\u003c\/strong\u003e: Class 10\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrip Design\u003c\/strong\u003e: Bimetallic thermal (differential tripping for single-phase protection)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting\u003c\/strong\u003e: Direct mount for CA7-30..37 contactors\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReset\u003c\/strong\u003e: Selectable manual or automatic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSignal Contact\u003c\/strong\u003e: Separate isolated normally open (NO) signal contact\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplications\u003c\/strong\u003e: Motor protection, VFD monitoring, DC applications, conveyors, fans, pumps\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSKU\u003c\/strong\u003e: 2174293\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC\u003c\/strong\u003e: 39122330\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"SPRECHER \u0026 SCHUH","offers":[{"title":"Default Title","offer_id":51409909088562,"sku":"CT7N-37-C21","price":147.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/313045597.jpg?v=1782979518","url":"https:\/\/voomisupply.com\/products\/sprecher-schuh-ct7n-37-c21-bimetallic-overload-relay-17-5-21-5-a-pack-1","provider":"Voomi Supply","version":"1.0","type":"link"}