They finally settled on a design for the thermal protection system and then found a company to manufacture it. Why is this? I needed a good way to show the actual contact surface area of the clamping socket on a NEMA L5-30. (Tip: cut the green ground wire half an . I dont even buy direct from SmartPlug. 50 Amp 125/250 Volt background-position: center; WARNING: If you want to push beyond a 21A load on a 30A twist-lock you are doing so at your own risk. Get free shipping on qualified Twist-Lock Plug RV & Marine Cords products or Buy Online Pick Up in Store today in the Electrical Department. This is the standard used for 30A shore power on boats here in the USA and elsewhere. Returns are easy and youll always receive the best customer service and advice. Locking Devices, Twist-Lock, Marine Grade, Ship to Shore Cableset, 50A 125V, 2-Pole 3-Wire Grounding, Non-NEMA, Yellow. This makes the installation & conversion to a SmartPlug simple. One Hand. Prices, specifications, and images are subject to change without notice. The entire contact area here is but a 1.3mm X 2.7mm and 1.3mm X 2.4mm area often trying to handle 30A of current. It measures about 1.77mm thick. 5- There are no seals on this plug standard thus it is very easy for corrosion to set in on the pins & sockets and create yet even more resistance. The tough construction and corrosion resistance provides Marinco 30 Amp Stainless Steel Shore Power Inlet They tried, but to make them waterproof was proving too expensive on a field install plug. This type of situation cant physically happen with the SmartPlug. Blatant hypocrisy? 50 Amp 125 Volt Veepeak 30 Amp Shore Power Inlet NEMA L5-30P 125V Twist Locking Plug for Boat RV Trailer Camper Van, ETL Listed, Marvine Cable Shore Power Adapter 30A L5-30P to 50A SS2-50R Dogbone 1.5Ft, ABN L5-30R Connector with RV Power Cord Cover & Ring 30 Amp Twist Lock Inlet Locking Plug Protector, 30A 125V, Leisure Cords 30 AMP RV Power Cord Locking Shore Connector Replacement End Marine Twist Lock with Boot, | Based on star rating and number of customer ratings, RVGUARD 3 Prong 15 Amp to 30 Amp RV Adapter Plug with Locking Connector, 5-15P to L5-30R 125 Volt AC Camper Generator Adapter Electrical Converter Plug Green, 25ft 30Amp 125V LED Electric Extension RV Power Wire Cord Marine Shore Boat L5-30 Black 25 Feet Heavy Duty Electrical Power Cable, NEMA L5-30P to NEMA L5-30R, BougeRV 30 AMP RV Receptacle Plug RV 30 AMP Plug Electrical Plug Adapter with Handle (Male Plug), 25FT 30 AMP RV Power Cord with Handles 10 Gauge Heavy Duty Weatherproof Electrical Camper Trailer Marine Boat Shore Cable with LED Twist Lock Connector Wire Yellow, CircleCord 30 Amp to 15 Amp 110 RV Adapter Cord with Locking Connector, NEMA 5-15P Male to L5-30R Twist Lock Female Electrical Power Dogbone, STW 10 Gauge for RV Trailer Camper, ETL Listed, Dumble Outdoor Marine Electrical Power Male Inlet Socket Box Kit 30A 125V Connector, Twist Lock Plug Cord Cover, Ring, Parkworld 692026 Splitter Marine Shore Power Y Adapter SS2-50P Male 50A Plug to (2) L5-30R Female Dual 30A Receptacle, Camco Heavy Duty RV 30 AMP PowerGrip Male Replacement Plug- Durable and Safer Plug with an Easier Grip (55245), Yellow|Yellow, Muelnmey NEMA L14-30C 125/250 Volt 30 Amp Generator Locking Female Plug Box, MECMO - Marine Shore Power Y Splitter SS2-50P Male 50A Plug to (2) 30A L530R Female, 50 Amp 125/250V to L5-30R Y-Adapter Splitter Boat Shore Power Adapter w/Locking Ring & Collar, UL Listed - 3FT, Parkworld 691685 Shore Power Adapter Household 15A 5-15 Plug to RV Twist Lock 30A Socket L5-30 Receptacle with Locking Ring (Adapter), Marinco 30A 125V Marine Shore Power Cordsets, SmartPlug 30-Amp Inlet Connector - BM30NT, ABN 30 AMP RV Power Inlet with RV Receptacle Plug and Weather Resistant Twist Cover for Marine Boat RV Shed Electrical Extension, 30amp Extension Adaptor Cord TT-30P to L5-30R, RV Electrical Cords, Dogbones, & Protectors, Parkworld 692019 Shore Power Adapter Cord Marine 50A Plug SS2-50P to L5-30R RV 30A Receptacle Female (1.5FT). The silver screw is your AC 120V WHITE/NEUTRAL wire. Add just a little corrosion, some torquing & pulling on the plug and stack all that onto the minimal contact area and we develop heat. If US Made, the product would sit in US shelves because it could not be built affordable and could not be competitive. This is their new set screw design for clamping the inlet wire. Should be simple right? Marinco 30 Amp Standard Shore Power Inlet EDIT: SmartPlug has decided to offer a version of the 30A inlet without a thermal breaker to be in compliance with the ABYC standards against auto-resetting. See our major markets and building types below. FACT: SmartPlug had nothing to do with this article other than to offer heat sensing images and answer about 1000 pestering questions from me. Hubbell Shore Power. Would you like to see more articles like this? Manufacturer: Plug: Amps: Voltage : Poles /Wire: Part # Hubbell: L5-15P: 15A: 125V: 2 Pole, 3 Wire: HBL24W47: Hubbell: L5-20P: 20A . Really, I am not uploading these, my computer is just so full of them it keeps puking them out (grin). I have literally seen NEMA L5-30s forced in and inserted incorrectly. Manufacturer rebates, terms, conditions and expiration dates are subject to manufacturers printed forms. Product Features: The individual I spoke with at Bunyan Fire Department asked not to be identified because they were unsure if the damage numbers on boats, in dollars was accurate. Read the full press release, Marinco 70A Trolling Motor Plug Wins 2017 Boating Industry Top Product Award, Marinco is honoured that the new 70A trolling motor plug and receptacle has recently been named one of the top 50 products of 2017 by Boating Industry. Some readers have suggested that the problem is not the design, but rather how boat owners improperly use these cords and is because they dont use the locking rings. 4.6 out of 5 stars 89. In Stock. (3) Hubbell CS8164C 50 Amp 480V Locking Connector - Black/White. 50 Amp to 50 Amp. Compare. We are dedicated to developing and delivering marine products so that boat builders and boat captains can feel at ease while on the water. Made to withstand the harsh marine environment, Hubbell shore power products are some of the best in the business keeping your boat safe while plugged in. Everything is clearly coded for a US AC wire color standard installation. NOTE: At this point in time SmartPlugs are for the boat end only. The only differences, when it comes to contact area & clamping force, are usually in the tinning of the terminals on marine plugs & receptacles. Think again! This was a major part of the design criteria for this system.. It requires both inserting & twisting. I clamped a 10GA UL1426 wire under one of the clamp screws 35 times. Features: They also prevent moisture and dust from entering the electrical box. Compare . Red 12V or 24V Twist-Lock Battery Charger Plug. Furrion 30 Amp Male Plug- Yellow Loaded identically, the SmartPlug yields just a 4F rise from ambient room temp. background-repeat: no-repeat; My goal here was to show exactly why or how this standard can result in so many boat or marina fires. Think this stuff is not serious? One more comment in your picture with Not an uncommon occurence overprinted in red you ask if the reader sees a locking ring you missed. This is the back of a SmartPlug 30A inlet. I cant imagine that Harvey Hubbell III ever intended this to be used on boats, inches from the ocean, back when it was conceived.. In this picture we can see the contact area between pin and socket. NEMA Locking Marine Grade Plugs . NEMA Locking Marine Grade Plugs . 4.7 out of 5 stars 512. These plugs and inlets were both 30A versions run at 28A or 93% of the face value rating. I generally dont recommend loading a NEMA L5-30 30A circuit to more than 70% of its face value rating, especially in the marine environment. Hubbell Twist-Lock Marine Grade Plugs . In order to make these points clearer I chose to destroy this socket by cutting it open to give a full look into why they are so dangerous. This is pretty incredible when you consider you will only ever do it once or perhaps twice at the most. This is the original style plug which has now been updated, and further enhanced for ease of installation, but the basics are the same. If you liked it, learned from it or I saved you some money feel free to make a small donation, thats all I ask. Modular connectivity. - TT-30 (Travel Trailer 30amp) 30A 120-volt 3-prong outlet, the older style found in RV parks, not used in . Compatible with 50A 125/250V shore power. I have learned over the years that this is due to the clamping mechanism in the female socket weakening over time and getting loose. Drawing on over a century of commitment to innovation and quality, Hubbell Wiring Device-Kellems, an industry leader, is dedicated to developing and delivering marine products that improve performance, safety, and functionality. I am trying my hardest to keep this information FREE. You are using a web browser we don't support. When you look at the temp spread you can see a 23F rise in temperature, from the ambient air temp, on the circa 1938 NEMA L5-30 plug standard. Pin-Point and trace the problem it is on the tow vehicle or the trailer being towed. Exactly one warranty replacement, a 30A 50 shore cord for a customer who had one fade to a paler shade of orange. The rubber appeared to have deteriorated in the sun. 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DC Rated Devices; International Rated Devices; Marine Isolation Transformers; . This image also shows just how thick and robust the plastic of the plug body is. Lots of other chandlers have the SmartPlug too such as Hamilton Marine, Defender and West Marine. It was not good enough to just design a better plug & inlet, he wanted to design a truly safe product. Can't find what you're looking for? , high-temperature washdowns, oil/coolant splashing, and are corrosion-resistant so they can be used in high-vibration marine environments. Ford Explorer UV Graphic Carbon Fiber Look Metal Face-Plate on ABS Plastic 2 inch Tow Hitch Cover. Once plugged in and locked a SmartPlug 30A or 50A male/female socket combo can not move side to side or up and down. sealing/strain relief had split where it enters the plug body. FACT: I personally believe in this product and SmartPlug had nothing to do with my writing of this article. complete line of products to meet practically every application. Each outlet will come equipped with wall plates. #1 Home Improvement Retailer. . When in doubt, its best to also replace the feed wire from the new AC inlet to the AC panel. wire system 4 Pole, 4 Wire. Marinco 50 Amp Shore power Female Connector 125/250 Volt The results were, well, shocking.. When I blew up the picture I realized I had been very kind to the width of the contact surface area. Replacement Interior Saves space. This cord-to-boat connection is subject to wear-and-tear damage from the activity of connecting and disconnecting the cord, and it is also subject to damage from wet winter weather, and it is a major source of fire in marinas. Apparently my computer has a mind of its own today and these images just keep seeping from my image database Sorry, I will try not to let it happen again.. (wink). Read the full press release. Rated NEMA 6P, NEMA 13, IP66, and IP69K when mated, these connectors withstand high- pressure, high-temperature washdowns, oil/coolant splashing, and are corrosion-resistant so they can be used in high-vibration marine environments. Ken tried his hardest to manufacture it all here in the US which is more than most companies will even attempt these days. $24.99 . FACT: The only compensation Ive made from this article has been from the DONATE button in this article. When this plug standard began life it was back in 1938. This fire at McCotters Marina was estimated at approximately 23 million dollars in damage and included a Bertram 68, with a single boat value into the millions. Hubell: HBL63CM60 Safe? Looking for an inlet that is highly corrosion-resistant? 30A. ACE understand these problems because they pay the claims! View Details. 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