{"product_id":"1492-sp1c040-allen-bradley-1492-sp-miniature-circuit-breaker","title":"1492-SP1C040 | Allen Bradley | 1492-SP Miniature Circuit Breaker","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen Bradley 1492-SP1C040\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efunctions as a high-performance supplemental protector within the 1492-SP wiring system. This single-pole miniature circuit breaker provides critical overcurrent protection for control circuits, solenoids, and PLC I\/O points. We supply this component as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Factory Original\u003c\/strong\u003e, ensuring that the internal thermal-magnetic trip mechanisms meet strict factory calibration for equipment safety.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 1492-SP1C040 utilizes precision-engineered components to handle 1-phase AC voltage ranges efficiently:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNumber of Poles\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1-Pole\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eContinuous Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 Amperes\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eTrip Curve\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eC-Curve (Magnetic Trip 5...10 x \u003cspan class=\"math-inline\"\u003e$I_{n}$\u003c\/span\u003e)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eVoltage Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e240–415V AC (Max 277V AC per UL\/CSA)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInterrupting Rating (AIC)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10 kA at 277V AC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProtection Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eThermal-Magnetic\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eConnection Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFeed-through\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eTerminal Torque\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.4 Newton-meters (21 lb-in)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.00 lbs (1.36 kg) per bulk pack \/ approx. 0.25 lbs per unit\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eC-Curve Magnetic Response:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe C-curve characteristic manages moderate inrush currents typical of inductive loads like small motors and transformers. It prevents nuisance tripping during startup while providing instantaneous protection against high-level short circuits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDual Trip Functionality:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe breaker employs a bimetal element for long-time thermal overload protection and an electromagnetic solenoid for instantaneous short-circuit response. This \"LI\" (Long-time\/Instantaneous) capability safeguards downstream components from both gradual overheating and catastrophic faults.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSpace-Efficient Feed-Through Design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 0.4-inch (10mm) slim profile maximizes rail density in crowded control cabinets. This allows engineers to fit more protection points into restricted enclosure footprints without compromising thermal dissipation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFinger-Safe Terminals:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe housing design guards against accidental contact with live parts. The 2.4 N-m torque rating ensures a high-pressure wire connection that resists loosening caused by machine vibrations or thermal expansion cycles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs this 1492-SP1C040 unit 100% Brand New?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. We supply only\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoriginal Allen Bradley stock. Each breaker features the original factory markings and has undergone no prior installation or use.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the primary application for a C-Curve breaker?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEngineers typically specify the C-curve for general-purpose industrial circuits. It handles the initial surge of inductive loads better than a B-curve, making it ideal for PLC power supplies and solenoid valves where a slight delay in magnetic tripping is required.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this breaker as a primary branch circuit protector?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1492-SP series serves as a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSupplemental Protector\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(UL 1077). You should use it for protection\u003cspan\u003e \u003c\/span\u003e\u003cem\u003einside\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003ean appliance or control panel where branch circuit protection (UL 489) already exists upstream.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat wire size does the terminal accommodate?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe terminal accepts standard industrial copper wiring. To maintain the 10 kA AIC rating and prevent hotspots, always use a calibrated torque wrench to tighten the screw terminals to exactly 2.4 Newton-meters.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52862594187573,"sku":"1492-SP1C040","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1492-SP1C040.png?v=1778467462","url":"https:\/\/www.5gplc.com\/products\/1492-sp1c040-allen-bradley-1492-sp-miniature-circuit-breaker","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}