{"product_id":"reliance-controls-pb50-50-amp-power-inlet-box-gray-nema-3r-weatherproof-hardwire-for-12-500w-generators","title":"Reliance Controls PB50 50-Amp Power Inlet Box Gray — NEMA 3R Weatherproof, Hardwire for 12,500W Generators","description":"\u003cp\u003e\u003cstrong\u003eThe Reliance Controls PB50 is a weatherproof 50-amp power inlet box built to hardwire a portable generator to your home's transfer switch safely and without running cords through doors or windows.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen you plan to connect a portable generator to a transfer switch or manual transfer panel, the PB50 inlet box gives you a clean, code-friendly outdoor connection point. Made for exterior mounting, this NEMA 3R enclosure resists rust and moisture, offers roomy wiring space for easier installation, and uses standard knockouts so electricians can route feed conductors directly to the transfer equipment. It’s a practical accessory for homeowners and electricians who need a durable inlet rated for up to 50 amps and generators up to 12,500 running watts.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the PB50 keep outdoor connections safe?\u003c\/h3\u003e\n\u003cp\u003eThe PB50 is built with a weather-resistant enclosure, a spring-loaded inlet cap, and corrosion-resistant powder coat to protect the inlet when it’s not in use. Its design prevents rain and splash from reaching live connections while providing a secure, sealed connection during operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRaintight NEMA 3R enclosure for outdoor mounting\u003c\/li\u003e\n  \u003cli\u003eSpring-loaded inlet cap reduces moisture entry\u003c\/li\u003e\n  \u003cli\u003eDurable steel construction with anti-corrosive finish\u003c\/li\u003e\n  \u003cli\u003eFaceplate removable for protected wiring access\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat wiring and electrical limits should I expect?\u003c\/h3\u003e\n\u003cp\u003eThis inlet handles up to 50 amps at 125\/250 VAC and is intended for use with 8 AWG conductors rated 75°C. It supports portable generators with running wattage up to approximately 12,500 watts when matched with an appropriate transfer switch or load center.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaximum generator input: 50A @ 125\/250VAC\u003c\/li\u003e\n  \u003cli\u003eMaximum recommended generator running watts: 12,500\u003c\/li\u003e\n  \u003cli\u003eUse with 8 AWG, 75°C insulated wire per installation guidance\u003c\/li\u003e\n  \u003cli\u003eCompatible with designated Reliance transfer switches and panels\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this simplify installation for electricians and homeowners?\u003c\/h3\u003e\n\u003cp\u003eThe PB50 includes four combination 1\/2\" and 3\/4\" knockouts located on each side, bottom and back, which makes routing conduit or cable straightforward. The removable face and roomy interior ease rough-in wiring and permit straightforward final connections to the transfer switch or panel inside the building.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFour combo knockouts for flexible conduit or cable entry\u003c\/li\u003e\n  \u003cli\u003eRemovable face for easy access during rough-in and final wiring\u003c\/li\u003e\n  \u003cli\u003eGenerous internal wiring space for neat, code-compliant terminations\u003c\/li\u003e\n  \u003cli\u003eDesigned for hardwiring directly to transfer switches or panels\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat approvals and support does Reliance provide?\u003c\/h3\u003e\n\u003cp\u003eThe PB50 is manufactured by Reliance Controls, a long-established company specializing in generator accessories and transfer equipment. The unit carries recognized safety listings and a limited warranty to back its construction and performance expectations.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ecUL listing for safety and performance compliance\u003c\/li\u003e\n  \u003cli\u003eFive-year limited warranty from Reliance Controls\u003c\/li\u003e\n  \u003cli\u003eIndustry experience and product support from a century-old manufacturer\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho should consider the PB50? If you want a code-friendly, outdoor inlet for a portable generator—eliminating extension cords through doors and windows—the PB50 is aimed at homeowners, electricians, and contractors installing manual transfer switches or generator-ready load centers. It’s best for setups that require a weatherproof, hardwired connection rated for 50 amps and up to roughly 12,500 running watts. For exact compatibility and safe installation, pair it with the appropriate Reliance transfer switch and follow local electrical codes and an electrician’s guidance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the PB50 be used outdoors?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The PB50 is a NEMA 3R raintight inlet designed for outdoor mounting and resists moisture and corrosion.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What generator size and wire gauge does it support?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The inlet supports up to 50A (125\/250 VAC), around 12,500 running watts, and is intended for 8 AWG, 75°C insulated wire.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Reliance Controls","offers":[{"title":"Default Title","offer_id":56843995283796,"sku":"B000HRWGBW","price":125.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/reliance-controls-pb50-front-panel.jpg?v=1787083582","url":"https:\/\/gardenluxe.co.uk\/products\/reliance-controls-pb50-50-amp-power-inlet-box-gray-nema-3r-weatherproof-hardwire-for-12-500w-generators","provider":"Gardenluxe Uk","version":"1.0","type":"link"}