[{"id":341324660927,"handle":"500-1000","title":"$500 to $1,000","updated_at":"2026-07-07T18:53:32-04:00","body_html":null,"published_at":"2025-03-18T10:40:58-04:00","sort_order":"alpha-asc","template_suffix":null,"disjunctive":false,"rules":[{"column":"variant_price","relation":"greater_than","condition":"499.99"},{"column":"variant_price","relation":"less_than","condition":"1000.0"}],"published_scope":"web"},{"id":87442325539,"handle":"all","title":"All","updated_at":"2026-07-07T18:53:32-04:00","body_html":"","published_at":"2019-05-25T23:46:42-04:00","sort_order":"best-selling","template_suffix":"","disjunctive":false,"rules":[{"column":"variant_price","relation":"greater_than","condition":"100"}],"published_scope":"global","image":{"created_at":"2020-03-13T16:56:33-04:00","alt":null,"width":460,"height":391,"src":"\/\/ca.pittsburghsprayequip.com\/cdn\/shop\/collections\/PerformerES-1.jpg?v=1584132994"}},{"id":82843140131,"handle":"best-selling-products","title":"Best Selling Products","updated_at":"2026-07-07T18:53:51-04:00","body_html":"","published_at":"2019-03-07T16:04:09-05:00","sort_order":"best-selling","template_suffix":"","disjunctive":true,"rules":[{"column":"title","relation":"contains","condition":"Best Selling"},{"column":"title","relation":"not_contains","condition":"Best Selling"}],"published_scope":"web","image":{"created_at":"2019-10-14T12:11:24-04:00","alt":null,"width":2160,"height":2160,"src":"\/\/ca.pittsburghsprayequip.com\/cdn\/shop\/collections\/20191015_001027_0000.png?v=1571069485"}},{"id":358065799359,"handle":"black-friday-2025","title":"Black Friday 2025","updated_at":"2026-07-07T18:53:51-04:00","body_html":"","published_at":"2025-11-24T09:35:23-05:00","sort_order":"best-selling","template_suffix":"","disjunctive":false,"rules":[{"column":"tag","relation":"not_equals","condition":"map price"}],"published_scope":"global"},{"id":373371928767,"handle":"brand-grizzly","title":"Brand Grizzly","updated_at":"2026-07-07T16:43:43-04:00","body_html":null,"published_at":"2026-07-07T12:22:38-04:00","sort_order":"alpha-asc","template_suffix":null,"disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"brand-grizzly"}],"published_scope":"web"},{"id":341345108159,"handle":"grizzly-industrial","title":"Grizzly Industrial","updated_at":"2026-07-07T16:43:44-04:00","body_html":null,"published_at":"2025-03-19T01:19:02-04:00","sort_order":"best-selling","template_suffix":null,"disjunctive":false,"rules":[{"column":"vendor","relation":"equals","condition":"Grizzly Industrial"}],"published_scope":"web"},{"id":296465268927,"handle":"grizzly-industrial-all-products","title":"Grizzly Industrial All Products","updated_at":"2026-07-07T16:43:44-04:00","body_html":"","published_at":"2023-03-16T16:45:13-04:00","sort_order":"best-selling","template_suffix":"gem-1678999463-template","disjunctive":false,"rules":[{"column":"vendor","relation":"equals","condition":"Grizzly Industrial"}],"published_scope":"global"},{"id":373371470015,"handle":"hp-10","title":"Hp 10","updated_at":"2026-07-07T14:37:50-04:00","body_html":null,"published_at":"2026-07-07T12:21:40-04:00","sort_order":"alpha-asc","template_suffix":null,"disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"hp-10"}],"published_scope":"web"},{"id":82843172899,"handle":"newest-products","title":"Newest Products","updated_at":"2026-07-07T18:53:51-04:00","body_html":"","published_at":"2019-03-07T16:04:10-05:00","sort_order":"created-desc","template_suffix":"","disjunctive":true,"rules":[{"column":"title","relation":"contains","condition":"Newest"},{"column":"title","relation":"not_contains","condition":"Newest"}],"published_scope":"web","image":{"created_at":"2019-10-14T12:00:36-04:00","alt":null,"width":2160,"height":2160,"src":"\/\/ca.pittsburghsprayequip.com\/cdn\/shop\/collections\/binks-2100-right-side-3-4-1_grande_4aeedb33-d516-4ea9-85f9-50e72154176c.jpg?v=1571069397"}},{"id":373371895999,"handle":"phase-three","title":"Phase Three","updated_at":"2026-07-07T18:05:47-04:00","body_html":null,"published_at":"2026-07-07T12:22:24-04:00","sort_order":"alpha-asc","template_suffix":null,"disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"phase-three"}],"published_scope":"web"},{"id":373350990015,"handle":"phase-converters","updated_at":"2026-07-07T14:37:11-04:00","published_at":"2026-07-07T14:28:14-04:00","sort_order":"most-relevant","template_suffix":null,"published_scope":"web","title":"Rotary Phase Converters","body_html":"\u003cdiv class=\"pse-seo-intro\"\u003e\u003cp\u003eRotary phase converters transform single-phase power into three-phase power, enabling shops to run industrial machinery without upgrading to three-phase service from the utility. Unlike static converters that rely on capacitors, rotary converters use a motor-driven rotor to generate genuine three-phase output, delivering better performance under load and supporting larger, more demanding equipment. Pittsburgh Spray Equipment stocks Grizzly Industrial rotary phase converters ranging from 5 HP to 30 HP, purpose-built for machine shops, woodworking operations, and fabrication facilities that operate multiple three-phase tools on single-phase input. Rotary converters excel in environments where machines run continuously or where simultaneous equipment operation is common—conditions that stress capacitor-based static converters. The Grizzly lineup offers solid construction and straightforward installation, making them practical choices for shops seeking reliable, cost-effective three-phase conversion without utility-level electrical work.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2\u003eHow to Choose the Right Rotary Phase Converters\u003c\/h2\u003e\n\u003cul class=\"pse-seo-checklist\"\u003e\n \u003cli\u003eDetermine total connected three-phase HP; rotary converter must equal or exceed largest single machine plus 25% headroom.\u003c\/li\u003e\n \u003cli\u003eConfirm single-phase input voltage available (120V, 240V, 480V); most shop models run 240V single-phase input.\u003c\/li\u003e\n \u003cli\u003eMeasure available floor space; rotary units are compact but require clearance for cooling air circulation and service access.\u003c\/li\u003e\n \u003cli\u003eVerify warranty period and local service availability; Grizzly units typically include manufacturer support and parts access.\u003c\/li\u003e\n \u003cli\u003eCheck idle power draw; rotary motors consume power even when no three-phase load is running—budget for baseline utility cost.\u003c\/li\u003e\n \u003cli\u003eConfirm balance requirements for sensitive equipment; rotary converters achieve better voltage balance than static types under load.\u003c\/li\u003e\n \u003cli\u003ePlan installation near primary machine location to minimize wire runs and voltage drop on three-phase distribution.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eModel Comparison\u003c\/h2\u003e\n\u003cdiv class=\"pse-seo-compare-wrap\"\u003e\u003ctable class=\"pse-seo-compare\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eInput \/ Output Phase\u003c\/th\u003e\n\u003cth\u003eMax HP Output\u003c\/th\u003e\n\u003cth\u003eTypical Applications\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrizzly G5844\u003c\/td\u003e\n\u003ctd\u003eSingle → Three (240V)\u003c\/td\u003e\n\u003ctd\u003e5 HP\u003c\/td\u003e\n\u003ctd\u003eSmall mills, lathes, light production\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrizzly G5845\u003c\/td\u003e\n\u003ctd\u003eSingle → Three (240V)\u003c\/td\u003e\n\u003ctd\u003e10 HP\u003c\/td\u003e\n\u003ctd\u003eMid-size mills, compressors, multiple small machines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrizzly G7978\u003c\/td\u003e\n\u003ctd\u003eSingle → Three (240V)\u003c\/td\u003e\n\u003ctd\u003e15 HP\u003c\/td\u003e\n\u003ctd\u003eLarger mills, cabinet saws, heavy-duty shop setups\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrizzly G7979\u003c\/td\u003e\n\u003ctd\u003eSingle → Three (240V)\u003c\/td\u003e\n\u003ctd\u003e20 HP\u003c\/td\u003e\n\u003ctd\u003eProduction facilities, continuous-duty operations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrizzly H3741\u003c\/td\u003e\n\u003ctd\u003eSingle → Three (240V)\u003c\/td\u003e\n\u003ctd\u003e30 HP\u003c\/td\u003e\n\u003ctd\u003eIndustrial shops, multi-machine environments, heavy load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"pse-seo-faqs\" itemscope itemtype=\"https:\/\/schema.org\/FAQPage\"\u003e\n\u003cdiv class=\"pse-seo-faq\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n \u003ch3 itemprop=\"name\"\u003eWhat size rotary phase converter do I need for a 5 HP mill plus a 3 HP compressor running on single-phase?\u003c\/h3\u003e\n \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cp itemprop=\"text\"\u003eSize for total connected load plus safety margin: 5 + 3 = 8 HP, plus 25% headroom = 10 HP minimum. A Grizzly G5845 (10 HP) is the right fit. Running both machines simultaneously draws near full capacity; stagger use if possible or step up to 15 HP for easier duty cycle.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pse-seo-faq\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n \u003ch3 itemprop=\"name\"\u003eHow does a rotary phase converter differ from a static converter in real-world shop use?\u003c\/h3\u003e\n \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cp itemprop=\"text\"\u003eRotary converters use a motor-driven rotor to generate genuine three-phase output, maintaining better voltage balance and handling high inrush current from large motors. Static converters rely on capacitors and often undersupply the third leg under load. Rotary excels with continuous-duty and multi-machine setups; static suffices for intermittent, light loads.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pse-seo-faq\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n \u003ch3 itemprop=\"name\"\u003eWill a 10 HP rotary phase converter run my 10 HP three-phase mill continuously?\u003c\/h3\u003e\n \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cp itemprop=\"text\"\u003eTechnically yes, but not advisably. A 10 HP converter sized to a 10 HP load operates at full capacity with no headroom for inrush or voltage sag. Best practice is to size 20–25% above peak load. For continuous 10 HP demand, a 15 HP converter (Grizzly G7978) ensures cooler operation, longer life, and stable output voltage.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pse-seo-faq\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n \u003ch3 itemprop=\"name\"\u003eDoes my rotary phase converter consume power when machines are idle?\u003c\/h3\u003e\n \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cp itemprop=\"text\"\u003eYes. The rotor motor runs continuously to maintain three-phase output readiness, drawing 10–20% of rated capacity even unloaded. Budget for baseline idling cost. Some shops install a contactor or timer to disconnect the converter during non-working hours, reducing standby draw and extending motor life.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pse-seo-faq\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n \u003ch3 itemprop=\"name\"\u003eCan I upgrade from a static to a rotary phase converter on existing single-phase service?\u003c\/h3\u003e\n \u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cp itemprop=\"text\"\u003eYes, rotary converters plug into standard 240V single-phase service just like static units. Installation is straightforward: disconnect the old unit, wire the rotary input to your single-phase panel, then run three-phase output to your machine distribution. A licensed electrician should verify wire gauge and breaker sizing for your specific setup.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e"},{"id":373373108415,"handle":"type-phase-converters","title":"Type Phase Converters","updated_at":"2026-07-07T14:37:53-04:00","body_html":null,"published_at":"2026-07-07T12:23:15-04:00","sort_order":"alpha-asc","template_suffix":null,"disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"type-phase-converters"}],"published_scope":"web"},{"id":359335821503,"handle":"holiday-vip-sale","title":"VIP Holiday Sale","updated_at":"2026-07-07T18:53:51-04:00","body_html":"","published_at":"2025-12-12T07:31:08-05:00","sort_order":"best-selling","template_suffix":"","disjunctive":false,"rules":[{"column":"tag","relation":"not_equals","condition":"map price"}],"published_scope":"global"}]
["500-1000","brand-grizzly","grizzly-industrial","hp-10","nomap","not canada","phase-three","prisync","prisync to add","ROAS 6.6","ships-2-3-weeks","spo-cs-disabled","spo-default","spo-disabled","spo-notify-me-disabled","type-phase-converters"]
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Using patented solid-state starting relays, these Autogen Static Phase Converters allow you to operate moderate 3-phase loads on a single-phase circuit. Provides instant reversing and full-time 3-wire power on motors operated at 70% continuous HP or 90% intermittent-duty (15 minutes or less with equal motor-cooling time). Select a converter with a HP range that fits your 3-phase motor. For high start-up loads, choose the converter with the largest HP range that fits your motor. For heavy loads, high-duty cycles, or applications with digital controls, only use a Rotary Phase Converter.
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Shipping and Returns
Shipping should be simple
We offer free shipping on orders over $80, less than $80 we charge a single flat rate fee of $8.50
Our primary carriers include UPS and USPS and for large items a variety of freight carriers.
Please note for certain product categories particularly filters there is at times an additional charge for shipping.
Shipping policy exceptions
Not all products qualify for free shipping.
No-Hassle Returns
Except as otherwise described below, if you are not satisfied for any reason products may be returned within 30 days of shipment for a full credit or exchange (if the product is undamaged). When you make your return, you’ll need to note credit or exchange. Returned items must be in the original packaging. To initiate a return you can contact us via phone and we can coordinate the return with you.
If you have questions please contact us at 866 373 5658
Shipping and Returns
Shipping should be simple
We offer free shipping on orders over $80, less than $80 we charge a single flat rate fee of $8.50
Our primary carriers include UPS and USPS and for large items a variety of freight carriers.
Please note for certain product categories particularly filters there is at times an additional charge for shipping.
Shipping policy exceptions
Not all products qualify for free shipping.
No-Hassle Returns
Except as otherwise described below, if you are not satisfied for any reason products may be returned within 30 days of shipment for a full credit or exchange (if the product is undamaged). When you make your return, you’ll need to note credit or exchange. Returned items must be in the original packaging. To initiate a return you can contact us via phone and we can coordinate the return with you.
