{"product_id":"3rb3036-1ub0","title":"3RB3036-1UB0 - Siemens Overload Relay (12.5-50 A)","description":"\u003cp\u003e\u003cstrong\u003e3RB3036-1UB0 - Siemens Overload Relay (12.5-50 A)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIf you’re running motors day in and day out, you already know how important dependable overload protection is. The Siemens 3RB3036-1UB0 gives you a straightforward, reliable way to protect your equipment without overcomplicating your setup. This solid-state overload relay uses electronic sensing to monitor current more accurately than traditional thermal devices, helping reduce the risk of overheating and unexpected shutdowns. With an adjustable range from 12.5 to 50 amps, it covers a wide span of motor applications, so you don’t have to stock multiple units for different loads. The CLASS 10E trip characteristic is designed to react quickly when it matters, while still allowing normal startup conditions to pass without nuisance trips. It mounts directly onto S2 contactors, keeping your panel layout clean and efficient. And with manual, automatic, and remote reset options, you can set it up in a way that fits how your operation actually runs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectronic overload protection (CLASS 10E):\u003c\/strong\u003e Consistent response to overload conditions helps protect motors from damage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable current range (12.5–50A):\u003c\/strong\u003e Flexible enough for multiple motor sizes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect contactor mounting (Size S2):\u003c\/strong\u003e Saves space and simplifies installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple reset options:\u003c\/strong\u003e Manual, automatic, or remote reset for added control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in auxiliary contacts:\u003c\/strong\u003e 1 NO and 1 NC for status indication and control integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated up to 690V:\u003c\/strong\u003e Suitable for a wide range of industrial systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for real-world conditions:\u003c\/strong\u003e Handles vibration, temperature swings, and demanding environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Solid-state overload relay (SIRIUS 3RB3 series)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Range:\u003c\/strong\u003e 12.5–50 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Class:\u003c\/strong\u003e CLASS 10E\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Voltage:\u003c\/strong\u003e Up to 690 V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency:\u003c\/strong\u003e 50–60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Power (400V):\u003c\/strong\u003e 7.5–22 kW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Power (690V):\u003c\/strong\u003e Up to 45 kW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Current:\u003c\/strong\u003e 50 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuxiliary Contacts:\u003c\/strong\u003e 1 NO (trip signal), 1 NC (contactor disconnect)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Contactor-mounted (Size S2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type:\u003c\/strong\u003e Screw terminals (main and auxiliary circuits)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIngress Protection:\u003c\/strong\u003e IP20, finger-safe front\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -25°C to +60°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (H x W x D):\u003c\/strong\u003e 99 mm x 55 mm x 104 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Compliance and Certifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e cULus, CCC, EAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHazardous Location:\u003c\/strong\u003e ATEX compliant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine Approvals:\u003c\/strong\u003e ABS, DNV, LR, PRS, RINA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Compliance:\u003c\/strong\u003e Includes SVHC-listed substance disclosures\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Works Best\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial motor control panels\u003c\/li\u003e\n\u003cli\u003eManufacturing equipment and production lines\u003c\/li\u003e\n\u003cli\u003eHVAC systems and building automation\u003c\/li\u003e\n\u003cli\u003ePumps, compressors, and conveyor systems\u003c\/li\u003e\n\u003cli\u003eProcess control and automation setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\n\u003cdiv\u003e\n\u003cblockquote\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003eUse of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer.\u003cstrong\u003e CIRCUIT BREAKER SUPERSTORE®\u003c\/strong\u003e is an independent reseller and is \u003cstrong\u003enot \u003c\/strong\u003ean authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do \u003cstrong\u003enot\u003c\/strong\u003e apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003eSiemens®, I-T-E®, and Murray® are registered trademarks of Siemens AG. Products sold are surplus, used, or refurbished and are \u003cstrong\u003eNOT \u003c\/strong\u003esupplied by Siemens AG or its affiliates.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SIEMENS","offers":[{"title":"New","offer_id":51699079971115,"sku":"3RB3036-1UB0","price":175.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":51699080003883,"sku":"3RB3036-1UB0 [R]","price":100.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/3rb3036-1ub0","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}