{"product_id":"cummins-onan-100-amp-transfer-switch","title":"Cummins Onan 100 AMP Service Entrance Rated Automatic Transfer Switch A064G545","description":"\u003ch3\u003eCummins Onan 100 AMP Service Entrance Rated Automatic Transfer Switch A064G545\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ePlease Note\u003c\/strong\u003e: This item is NOT RETURNABLE.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e: CMGA064G545\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Cummins Onan 100 Amp Service Entrance Rated Automatic Transfer Switch A064G545 RA112S3 is designed to provide seamless and reliable power transfer between utility and generator sources. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis advanced transfer switch ensures that your home or business remains powered during outages by automatically monitoring utility power and switching to generator supply when needed. It is engineered with break‑before‑make functionality, preventing simultaneous connection of utility and generator power. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe mechanical and electrical interlocks add an extra layer of safety, ensuring secure operation at all times. Built with long‑life silver‑alloy contacts, the switch resists burning and pitting, offering durability and consistent performance. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts mechanically held contacts provide quiet operation, reducing noise during transitions. The aluminum enclosure is NEMA Type 3R rated, making it suitable for both indoor and outdoor installations. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis transfer switch is UL 1008 listed, meeting the highest standards for safety and compliance. It integrates seamlessly with Cummins RS series gensets, simplifying installation and reducing setup time. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for residential and light commercial applications, it adheres to NEC and NFPA requirements, ensuring compliance with national electrical standards. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith a Cummins 2‑year limited warranty, this product offers peace of mind and long‑term reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Benefits \u0026amp; Advanced Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eAutomatic Power Transfer\u003c\/strong\u003e ensures uninterrupted electricity supply.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e100 Amp Service Rated\u003c\/strong\u003e suitable for whole house applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDual Pole Switch\u003c\/strong\u003e supports 120\/240V single phase generators.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBreak‑Before‑Make Functionality\u003c\/strong\u003e isolates generator from utility power.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMechanical Interlock\u003c\/strong\u003e prevents simultaneous closing of contacts.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eElectrical Interlock\u003c\/strong\u003e ensures safe power source switching.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eLong‑Life Silver‑Alloy Contacts\u003c\/strong\u003e resist burning and pitting.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQuiet Operation\u003c\/strong\u003e with mechanically held contacts.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNEMA Type 3R Enclosure\u003c\/strong\u003e suitable for indoor and outdoor use.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eUL 1008 Listed\u003c\/strong\u003e meets transfer switch safety standards.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eIntegrated with RS Series Gensets\u003c\/strong\u003e for simplified installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eContinuous Monitoring\u003c\/strong\u003e of utility power 24\/7.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eAutomatic Generator Start\u003c\/strong\u003e when utility power fails.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eAutomatic Reconnection\u003c\/strong\u003e when utility power stabilizes.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCummins 2‑Year Limited Warranty\u003c\/strong\u003e ensures product reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDetailed Technical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eModel: A064G545 RA112S3\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eType: Automatic Transfer Switch (ATS)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eService Rating: 100 Amp\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eVoltage: 120\/240V Single Phase\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePoles: 2\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFunction: Break‑Before‑Make isolation\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMechanical Interlock: Included\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eElectrical Interlock: Included\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eContacts: High‑pressure silver‑alloy\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOperation: Mechanically held for quiet performance\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEnclosure: Aluminum, NEMA Type 3R rated\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInstallation: Indoor\/Outdoor\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCertification: UL 1008 Listed\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCompliance: NEC and NFPA standards\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIntegration: RS series genset compatible\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eWarranty: 2 years limited coverage\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMonitoring: 24\/7 utility power monitoring\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eApplication: Residential and light commercial standby systems\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eIdeal Applications\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThis transfer switch is ideal for whole house standby power systems, residential backup installations, and light commercial facilities requiring reliable automatic power transfer.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eReal‑World Performance \u0026amp; User Experiences\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eUsers benefit from seamless transitions between utility and generator power, with quiet operation and dependable performance. The automatic monitoring ensures peace of mind, as the system responds instantly to outages without requiring manual intervention.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eComparison with Similar Generators\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eCompared to non‑service rated switches, the RA112S3 offers enhanced safety and compliance. Its UL 1008 listing and NEC\/NFPA adherence make it superior to generic transfer switches, ensuring long‑term reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eStep‑by‑Step Setup Guide\u003c\/h2\u003e\n\u003col start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePosition the transfer switch near the generator and utility connection.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMount securely using appropriate hardware.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eConnect utility power lines to designated terminals.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eConnect generator power lines to emergency terminals.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEnsure mechanical and electrical interlocks are properly aligned.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eVerify wiring connections according to installation manual.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTest system functionality by simulating utility power loss.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eConfirm automatic transfer and reconnection operations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eMaintenance Schedule \u0026amp; Tips\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInspect wiring connections every 6 months.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eClean enclosure exterior regularly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTest automatic transfer function annually.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEnsure enclosure remains dry and ventilated.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eReplace worn contacts if necessary.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFollow Cummins service guidelines for long‑term reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eLong‑Term Cost of Ownership Analysis\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe RA112S3 reduces long‑term costs by minimizing downtime and preventing damage from improper power transfer. Its durable construction and compliance with safety standards ensure reliable operation, lowering maintenance expenses.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eWarranty\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eIncludes a Cummins 2‑year limited warranty covering defects in materials and workmanship. Warranty support provides confidence and assurance of product reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: Is this transfer switch suitable for whole house applications?\u003c\/strong\u003e A: Yes, it is service entrance rated for 100 Amp systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: Can it be installed outdoors?\u003c\/strong\u003e A: Yes, the NEMA Type 3R aluminum enclosure is rated for indoor and outdoor use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: Does it meet safety standards?\u003c\/strong\u003e A: Yes, it is UL 1008 listed and complies with NEC and NFPA requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: Is this item returnable?\u003c\/strong\u003e A: No, this item is not returnable.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eFinal Verdict\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe Cummins Onan 100 Amp Service Entrance Rated Automatic Transfer Switch A064G545 RA112S3 is a reliable, safe, and efficient solution for residential and light commercial standby power systems. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts advanced features, compliance with safety standards, and Cummins warranty make it an essential component for dependable backup power.\u003c\/span\u003e\u003c\/p\u003e","brand":"Meyer","offers":[{"title":"Default Title","offer_id":43167688753213,"sku":"CMGA064G545","price":1523.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0273\/0452\/5885\/files\/ABCDPNG_f3dcd9b3-0b58-47d8-841e-8d5e96d06b30.png?v=1778639177","url":"https:\/\/www.powerfitshop.com\/products\/cummins-onan-100-amp-transfer-switch","provider":"POWER FIT SHOP — Powering Preparedness, Health \u0026 Home","version":"1.0","type":"link"}