{"product_id":"sola-sdu500b-industrial-ups-500va-300w-din-rail-backup","title":"Sola SDU500B Industrial UPS 500VA 300W - DIN Rail Backup","description":"\u003cp\u003eIn this review the Sola\/Hevi-Duty SDU500B Industrial UPS is evaluated as a compact, DIN rail mountable backup solution targeted at control panels and factory automation systems; the single biggest reason to buy it is its specific focus on industrial control equipment where a short, reliable AC hold-up is needed to bridge brief power interruptions. The review covers real-world fit, key specs and who should choose this model over larger, general-purpose UPS units, with attention to its UL recognized component status and 120 VAC compatibility.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIN rail mounting:\u003c\/strong\u003e Installs directly into control cabinets and racks to save panel space and keep wiring compact and orderly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e500 VA \/ 300 W capacity:\u003c\/strong\u003e Provides short-term backup power sized for programmable logic controllers and small control systems to ride through outages.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e120 VAC output:\u003c\/strong\u003e Matches standard single-phase control voltages common in North American machine control and automation equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50\/60 Hz frequency rating:\u003c\/strong\u003e Works with both frequency standards so it can be used in a range of industrial sites without frequency mismatch concerns.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL recognized component and safety listings:\u003c\/strong\u003e Built to the UL 508 and UL 60950-1 standards and CSA-C22.2 for safer integration into certified equipment and panels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort back-up time:\u003c\/strong\u003e Offers about 4 minutes of run time at rated load, long enough to allow orderly shutdown or transfer to secondary supplies for sensitive control systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe SDU500B is aimed at electricians, panel builders and maintenance teams who need a compact UPS for PLCs, robotics controllers, conveyors and other machine control electronics where a DIN rail solution is preferred. Its safety recognitions make it suitable for factory automation environments that require components meeting UL and CSA standards.\u003c\/p\u003e\n\u003cp\u003eIt is not intended for powering workstations, servers or long-duration backup needs; sites that need extended run times or higher wattage should look to larger floor or rack-mount UPS models instead. Customers requiring battery autonomy beyond a few minutes will need a different class of UPS.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompact DIN rail form factor saves cabinet space and integrates cleanly into control panels.\u003c\/li\u003e\n\u003cli\u003eSafety listings (UL 508, UL 60950-1, CSA-C22.2) ease incorporation into certified industrial equipment.\u003c\/li\u003e\n\u003cli\u003eDesigned for control-system loads, so it supports PLCs, robotics and conveying equipment reliably for brief outages.\u003c\/li\u003e\n\u003cli\u003eDual frequency support (50\/60 Hz) increases installation flexibility across sites.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLimited back-up time (around 4 minutes) restricts use to short interruption handling rather than prolonged outages.\u003c\/li\u003e\n\u003cli\u003e300 W capacity means it cannot support larger loads or multiple high-draw devices simultaneously.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSDU500B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWattage\u003c\/td\u003e\n\u003ctd\u003e300 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e500 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Rating\u003c\/td\u003e\n\u003ctd\u003e120 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Rating\u003c\/td\u003e\n\u003ctd\u003e50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBack-Up Time\u003c\/td\u003e\n\u003ctd\u003eAbout 4 Minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eDIN Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Sola SDU500B is a practical, well-specified DIN rail UPS for industrial control panels where brief, reliable hold-up power is required. It is good value for users who need a UL-recognized component with 120 VAC output for PLCs and automation equipment, but those needing longer runtimes or higher power should consider larger models.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this unit be mounted inside a control panel?\u003c\/strong\u003e\u003cbr\u003eYes, it is designed for DIN rail mounting and fits into standard control cabinets to provide localized backup for control electronics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long will it run my PLC?\u003c\/strong\u003e\u003cbr\u003eRun time is about 4 minutes at rated load, adequate for orderly shutdowns or transfer to secondary power but not extended operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it safe for industrial equipment?\u003c\/strong\u003e\u003cbr\u003eIt carries UL 508, UL 60950-1 and CSA-C22.2 recognition, which supports safe integration into certified industrial systems.\u003c\/p\u003e","brand":"Sola","offers":[{"title":"Default Title","offer_id":48188453257435,"sku":"B005S3KNXI","price":565.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51WPOwOWgRL._SL1000.jpg?v=1769651734","url":"https:\/\/gearmusthave.com\/products\/sola-sdu500b-industrial-ups-500va-300w-din-rail-backup","provider":"GearMustHave","version":"1.0","type":"link"}