{"product_id":"progressive-dynamics-50-amp-120-240-vac-automatic-transfer-switch","title":"Progressive Dynamics 50 Amp 120\/240 VAC Automatic Transfer Switch","description":"\u003ch1 data-start=\"42\" data-end=\"130\"\u003eProgressive Dynamics 50 Amp 120\/240 VAC Automatic Transfer Switch — PD52 (5200 Series)\u003c\/h1\u003e \u003cp data-start=\"132\" data-end=\"1025\"\u003eThe PD52 is a heavy-duty, RV-grade automatic transfer switch that cleanly switches your coach or tiny-home system between shore power and generator (or inverter) power. It uses interlocked 2-pole contactors to prevent backfeed and incorporates a time-delay start so the generator can stabilize before it is allowed to carry the load.\u003c\/p\u003e \u003cp data-start=\"132\" data-end=\"1025\"\u003eOnce shore power returns and stabilizes, the unit re-transfers automatically with a brief delay to protect connected appliances. A rugged galvanized-steel enclosure, screw-type landing lugs, and a simple layout make installation straightforward for 120\/240 V split-phase 50 A services.\u003c\/p\u003e \u003cp data-start=\"132\" data-end=\"1025\"\u003eThe PD52 prioritizes safe, reliable transfer under high loads, supports auto-gen-start detection on select variants, and is built for years of service in motorhomes, fifth-wheels, and advanced van\/RV conversions where code-compliant switching and uptime matter.\u003c\/p\u003e \u003ch2 data-start=\"1027\" data-end=\"1054\"\u003eTechnical Specifications\u003c\/h2\u003e \u003cdiv\u003e \u003cdiv tabindex=\"-1\"\u003e \u003ctable data-start=\"1056\" data-end=\"2409\"\u003e \u003cthead data-start=\"1056\" data-end=\"1084\"\u003e \u003ctr data-start=\"1056\" data-end=\"1084\"\u003e \u003cth data-start=\"1056\" data-end=\"1067\" data-col-size=\"sm\"\u003eCategory\u003c\/th\u003e \u003cth data-start=\"1067\" data-end=\"1084\" data-col-size=\"md\"\u003eSpecification\u003c\/th\u003e \u003c\/tr\u003e \u003c\/thead\u003e \u003ctbody data-start=\"1095\" data-end=\"2409\"\u003e \u003ctr data-start=\"1095\" data-end=\"1133\"\u003e \u003ctd data-start=\"1095\" data-end=\"1103\" data-col-size=\"sm\"\u003eModel\u003c\/td\u003e \u003ctd data-start=\"1103\" data-end=\"1133\" data-col-size=\"md\"\u003ePD52 \/ PD52V (5200 Series)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"1134\" data-end=\"1188\"\u003e \u003ctd data-start=\"1134\" data-end=\"1144\" data-col-size=\"sm\"\u003eService\u003c\/td\u003e \u003ctd data-start=\"1144\" data-end=\"1188\" data-col-size=\"md\"\u003e120\/240 VAC split-phase (2 × 120 V legs)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"1189\" data-end=\"1256\"\u003e \u003ctd data-start=\"1189\" data-end=\"1207\" data-col-size=\"sm\"\u003eAmperage rating\u003c\/td\u003e \u003ctd data-start=\"1207\" data-end=\"1256\" data-col-size=\"md\"\u003e50 A per leg (neutral commonly rated to 70 A)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"1257\" data-end=\"1278\"\u003e \u003ctd data-start=\"1257\" data-end=\"1269\" data-col-size=\"sm\"\u003eFrequency\u003c\/td\u003e \u003ctd data-start=\"1269\" data-end=\"1278\" data-col-size=\"md\"\u003e60 Hz\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"1279\" data-end=\"1344\"\u003e \u003ctd data-start=\"1279\" data-end=\"1288\" data-col-size=\"sm\"\u003eInputs\u003c\/td\u003e \u003ctd data-start=\"1288\" data-end=\"1344\" data-col-size=\"md\"\u003eShore (L1\/L2\/N\/G), Generator or Inverter (L1\/L2\/N\/G)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"1345\" data-end=\"1407\"\u003e \u003ctd data-start=\"1345\" data-end=\"1354\" data-col-size=\"sm\"\u003eOutput\u003c\/td\u003e \u003ctd data-start=\"1354\" data-end=\"1407\" data-col-size=\"md\"\u003eTo main AC distribution\/breaker panel (L1\/L2\/N\/G)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"1408\" data-end=\"1504\"\u003e \u003ctd data-start=\"1408\" data-end=\"1426\" data-col-size=\"sm\"\u003eTransfer method\u003c\/td\u003e \u003ctd data-start=\"1426\" data-end=\"1504\" data-col-size=\"md\"\u003eDual mechanically interlocked contactors (switches L1 \u0026amp; L2; neutral solid)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"1505\" data-end=\"1577\"\u003e \u003ctd data-start=\"1505\" data-end=\"1530\" data-col-size=\"sm\"\u003eGenerator delay (typ.)\u003c\/td\u003e \u003ctd data-start=\"1530\" data-end=\"1577\" data-col-size=\"md\"\u003e~20–30 s on generator start before transfer\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"1578\" data-end=\"1639\"\u003e \u003ctd data-start=\"1578\" data-end=\"1605\" data-col-size=\"sm\"\u003eRe-transfer delay (typ.)\u003c\/td\u003e \u003ctd data-start=\"1605\" data-end=\"1639\" data-col-size=\"md\"\u003e~3–5 s when returning to shore\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"1640\" data-end=\"1690\"\u003e \u003ctd data-start=\"1640\" data-end=\"1651\" data-col-size=\"sm\"\u003ePriority\u003c\/td\u003e \u003ctd data-start=\"1651\" data-end=\"1690\" data-col-size=\"md\"\u003eGenerator (when present and stable)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"1691\" data-end=\"1794\"\u003e \u003ctd data-start=\"1691\" data-end=\"1703\" data-col-size=\"sm\"\u003eSurge\/AGS\u003c\/td\u003e \u003ctd data-start=\"1703\" data-end=\"1794\" data-col-size=\"md\"\u003e“DCS\/DCSV” variants add silent surge suppression \u0026amp; AC-detect for auto-gen-start systems\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"1795\" data-end=\"1909\"\u003e \u003ctd data-start=\"1795\" data-end=\"1817\" data-col-size=\"sm\"\u003eWiring terminations\u003c\/td\u003e \u003ctd data-start=\"1817\" data-end=\"1909\" data-col-size=\"md\"\u003eHeavy-duty screw lugs; copper conductors sized for 50 A service (e.g., 6 AWG Cu typical)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"1910\" data-end=\"1988\"\u003e \u003ctd data-start=\"1910\" data-end=\"1922\" data-col-size=\"sm\"\u003eEnclosure\u003c\/td\u003e \u003ctd data-start=\"1922\" data-end=\"1988\" data-col-size=\"md\"\u003eGalvanized steel, removable cover with internal wiring diagram\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"1989\" data-end=\"2058\"\u003e \u003ctd data-start=\"1989\" data-end=\"2001\" data-col-size=\"sm\"\u003eKnockouts\u003c\/td\u003e \u003ctd data-start=\"2001\" data-end=\"2058\" data-col-size=\"md\"\u003eMultiple circular knockouts for conduit\/strain-relief\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2059\" data-end=\"2117\"\u003e \u003ctd data-start=\"2059\" data-end=\"2082\" data-col-size=\"sm\"\u003eDimensions (approx.)\u003c\/td\u003e \u003ctd data-start=\"2082\" data-end=\"2117\" data-col-size=\"md\"\u003e10.3 in L × 6.9 in W × 4.5 in H\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2118\" data-end=\"2161\"\u003e \u003ctd data-start=\"2118\" data-end=\"2137\" data-col-size=\"sm\"\u003eWeight (approx.)\u003c\/td\u003e \u003ctd data-start=\"2137\" data-end=\"2161\" data-col-size=\"md\"\u003e7–10 lb (by variant)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2162\" data-end=\"2222\"\u003e \u003ctd data-start=\"2162\" data-end=\"2179\" data-col-size=\"sm\"\u003eOperating temp\u003c\/td\u003e \u003ctd data-start=\"2179\" data-end=\"2222\" data-col-size=\"md\"\u003e−20 °C to +50 °C typical RV environment\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2223\" data-end=\"2301\"\u003e \u003ctd data-start=\"2223\" data-end=\"2234\" data-col-size=\"sm\"\u003eListings\u003c\/td\u003e \u003ctd data-start=\"2234\" data-end=\"2301\" data-col-size=\"md\"\u003eDesigned to RV industry standards; components agency-recognized\u003c\/td\u003e \u003c\/tr\u003e \u003ctr data-start=\"2302\" data-end=\"2409\"\u003e \u003ctd data-start=\"2302\" data-end=\"2325\" data-col-size=\"sm\"\u003eTypical applications\u003c\/td\u003e \u003ctd data-start=\"2325\" data-end=\"2409\" data-col-size=\"md\"\u003eRVs, fifth-wheels, toy haulers, mobile offices, tiny homes with 50 A split-phase\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003c\/div\u003e \u003c\/div\u003e \u003ch3 data-start=\"2411\" data-end=\"2433\"\u003eInstallation notes\u003c\/h3\u003e \u003cul data-start=\"2434\" data-end=\"2735\"\u003e \u003cli data-start=\"2434\" data-end=\"2509\"\u003e \u003cp data-start=\"2436\" data-end=\"2509\"\u003eDe-energize all sources; follow NEC\/RVIA and manufacturer torque specs.\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"2510\" data-end=\"2623\"\u003e \u003cp data-start=\"2512\" data-end=\"2623\"\u003eLand conductors to labeled lugs (Shore, Gen\/Inverter, Load) and verify bonding\/neutral scheme per your panel.\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"2624\" data-end=\"2735\"\u003e \u003cp data-start=\"2626\" data-end=\"2735\"\u003eMaintain clearance for ventilation and service; keep wiring neat to reduce heat and simplify troubleshooting.\u003c\/p\u003e \u003c\/li\u003e \u003c\/ul\u003e","brand":"The Solar Store","offers":[{"title":"Default Title","offer_id":55064585077075,"sku":null,"price":100.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1076\/9324\/4755\/files\/OIP_27.jpg?v=1790371492","url":"https:\/\/progradewarehouse.com\/products\/progressive-dynamics-50-amp-120-240-vac-automatic-transfer-switch","provider":"PRO GRADE WAREHOUSE","version":"1.0","type":"link"}