Finding the best inlet box 20a suitable for your needs isnt easy. With hundreds of choices can distract you. Knowing whats bad and whats good can be something of a minefield. In this article, weve done the hard work for you.
Reviews
1. Reliance Controls Corporation PBN20 20 Amp NEMA 3R Power Inlet Box for Generators Up to 5,000 Running Watts
Feature
Non-metallic power inlet boxMust be installed outdoors in an open area
Maximum generator running watts: 20A @ 125/250VAC
NEMA 34 type with L14-20 configuration
Design provides over 100 cubic inches of generous wiring space
Description
The Reliance Controls PBN20 NEMA 3R Power Inlet Box is an outdoor/watertight electrical inlet for a 20 Amp L14-20 generator cord. It is designed to be located outdoors where the generator is running to prevent dangerous carbon monoxide fumes from the generator from entering your house. This inlet box is then safely hardwired through an outside wall directly to the transfer switch or panel, eliminating the need for cords running through windows or doors. It is designed to be wired directly to the transfer switch or panel by using one of the four reusable combination 1/2-inch and 3/4-inch knockouts (one on each side, bottom and back). The exclusive patented design provides generous wiring space and facilitates rough-in. The face of the box is removable for easy placement and wiring. It is constructed of heavy duty ABS plastic and has a spring-loaded inlet cap to prevent moisture front entering the bottom-mounted connector inlet when not in use.. Since 1909, Reliance Controls Corporation has contributed more innovations that any other single manufacturer and has been awarded over 85 patents on manual transfer switches, time switches and accessories. Reliance Controls Corporation specializes in the manufacturing of a wide variety of electrical products. The primary product line consists of heavy duty time clocks and controls, generator accessories, transfer switches and transfer panels for portable generators and inverters. And after over a century of innovation, Reliance Controls Corporation has built an enviable reputation for high quality, superior engineering and exceptional customer service.2. L6-20R Connector - NEMA L6-20 Locking Connector, 20A, 220V - 240V - 250V - Iron Box # IBX-L620R
Feature
NEMA L6-20R connector20A/250V
Industrial Grade
UL Listed
Hassle Free Returns / No Restock Fee
Description
NEMA L6-20R Locking Connector used for 20A, 250V power cords. Mates with a male L6-20P plug or inlet.3. Leviton 66W47 20A, 125 Volt, NEMA L5-20, 2P, 3W, Single Locking Inlet, IP66 Cover, Industrial Grade, Grounding, Corrosion Resistant, Wetguard, Yellow
Feature
Impact and chemical resistant Valox PBT cover and lid provide extended life in abusive environmentsSpring-loaded flip lid cover ensures a watertight seal when the cover is closed
Dual-hasp provides additional lockout/tagout option for added security
Electro less nickel-coated brass blades, contacts, wiring screws and wiring clamps resist corrosion
Stainless steel mounting and assembly screws provide corrosion resistance; triple-drive head facilitates proper tightening
Description
20 Amp, 125 Volt, NEMA L5-20, 2P, 3W, Single Locking Inlet with IP66 Rated Cover, Industrial Grade, Grounding, Corrosion Resistant, Wetguard - YELLOW4. Reliance Controls Corporation PB20 20-Amp NEMA 3R Power Inlet Box for Generators Up to 5,000 Running Watts
Feature
For indoor or outdoor use with specific transfer switches, manual transfer panels and generator-ready load centersOutdoor, raintight NEMA 3R non-metallic power inlet box provides generous wiring space
Maximum generator running watts: 5,000
Maximum generator input: 20A @ 125/250 VAC
UL listed, exclusive patented design facilitates easy rough-in
Description
The Reliance Controls PB20 NEMA 3R Power Inlet Box is an outdoor/watertight electrical inlet for a 20 Amp L14-20 generator cord. It is designed to be located outdoors where the generator is running to prevent dangerous carbon monoxide fumes from the generator from entering your house. This inlet box is then safely hardwired through an outside wall directly to the transfer switch or panel, eliminating the need for cords running through windows or doors. It is designed to be wired directly to the transfer switch or panel by using one of the four combination 1/2-inch and 3/4-inch knockouts (one on each side, bottom and back). The exclusive patented design provides generous wiring space and facilitates rough-in. The face of the box is removable for easy placement and wiring. It is constructed of steel with rugged, anti-corrosive powder-coat paint and has a spring-loaded inlet cap to prevent moisture front entering the front-mounted connector inlet when not in use.. Since 1909, Reliance Controls Corporation has contributed more innovations that any other single manufacturer and has been awarded over 85 patents on manual transfer switches, time switches and accessories. Reliance Controls Corporation specializes in the manufacturing of a wide variety of electrical products. The primary product line consists of heavy duty time clocks and controls, generator accessories, transfer switches and transfer panels for portable generators and inverters. And after over a century of innovation, Reliance Controls Corporation has built an enviable reputation for high quality, superior engineering and exceptional customer service.5. Reliance Controls Corporation 31410CRK 30 Amp 10-circuit Pro/Tran Transfer Switch Kit for Generators Up to 7,500 Running Watts
Feature
Kit includes 31410C ten-circuit prewired transfer switch, PC3010 power cord (10 feet, 10 AWG, L14-30 ends), PB30 outdoor painted steel power inlet box, wire nuts, and L14-20 male plug for 20A generator outletsConvenient kit for your transfer switch, circuitry and multi-wiring needs
Maximum generator running watts: 7,501. MAX. COMBINED LOAD @ 125 VAC:60, MAX. COMBINED LOAD @ 250 VAC:30
18-inch flexible conduit whip attaches easily, and indoor surface mount transfer switch designed for fast installation in both residential and commercial applications
cUL1008 listed and comes with a 5-year product warranty
Description
The Reliance Controls Corporation 31410CRK 10-circuit Pro/Tran Transfer Switch Kit has everything you need to easily complete a portable generator transfer switch installation in a home or office. The purpose of a transfer switch is to connect a secondary power source, like your portable generator, to circuits in your home or building that are wired into the electrical system. It is designed to enable the wiring system of the building to accept the full power of a portable generator, which can run multiple electrical appliances and devices during a power outage. The transfer switch ensures that you can safely use back up power during a power outage without having to worry about back feeding the utility line. In an emergency situation you might not think to shut off the main power source, the transfer switch makes it so you do not have to worry about that. This kit includes pre-wired transfer switch with wattage meters, 10-foot power cord, 30A power inlet box, wire connectors and extra 20A plug end. For indoor use. cULus listed. It is important that all manual transfer switches that are installed indoors be used with the correct inlet box, this kit ensures that you have the right one. This single phase transfer switch can be used with any generator up to 8,000 running watts. Since 1909, Reliance Controls Corporation has contributed more innovations that any other single manufacturer and has been awarded over 85 patents on manual transfer switches, time switches and accessories. Reliance Controls Corporation specializes in the manufacturing of a wide variety of electrical products. The primary product line consists of heavy duty time clocks and controls, generator accessories, transfer switches and transfer panels for portable generators. And after over a century of innovation, Reliance Controls Corporation has built an enviable reputation for high quality, superior engineering and exceptional customer service.6. NEMA 6-20P to C13 Power Cord - 1 Foot, 15A/250V, 14/3 SJT - Iron Box # IBX-4242-01
Feature
NEMA 6-20P Plug to C13 ConnectorC13 Mates with C14 inlet on a power supply
14/3 SJT Wire - Rated for 15A, 250V
Popular for use with many Bitcoin / Cryptocurrency mining machines
UL Listed
Description
NEMA 6-20P male plug to IEC C13 power cord. The 6-20P plug mates with a 6-20R 20A, 250V receptacle, while the C13 end mates with an IEC C14 inlet, commonly found on the rear panel of a computer or cryptocurrency miner power supply.7. Morris Products 89344 Generator Power Cord Sets, 20ft Length, 20A, 12/4C, L14-20 NEMA, 5.0Kw Max Input
Feature
Generator Power Cord Sets - Outdoor-safe Generator Power Cord Sets.Generator Power Cord Sets features include:
These generator power cord sets are designed for use with manual transfer switches, transfer panels, and power inlet boxes.
Available In 20 Amp & 30 Amp
Description
One Piece molded Cord/Plugs. L14 Twist Lock Male/Female Receptacles. 300V SJTOW Rubber Cord. -30F (-34C) Outdoor Use & Oil Resistant. UL Listed.8. Reliance Controls 306CRK Pro/Tran-2 6 Circuit Transfer Switch Kit
Feature
6 circuit transfer switch kitContains all components necessary to allow up to 6 single pole or one 2 pole & 4 single pole circuits to be safely powered by a portable generator during a power outage
Installs adjacent to existing load center
Completely pre-wired
Accommodates generators to 7500W continuous output
Description
6 circuit transfer switch kit, contains all components necessary to allow up to 6 single pole or one 2 pole & 4 single pole circuits to be safely powered by a portable generator during a power outage, installs adjacent to existing load center, completely pre-wired, accommodates generators to 7500W continuous output, kit includes 6 circuit transfer switch, 10' 30a power cord, 30a rain tight power inlet box, NEMA 14-30, extra 20a power cord end to accommodate smaller generators with 20a receptacles, step by step installation & operating instructions, UL1008 listed, full color display pack.9. Marinco (200BBIW.RV) White 20 Amp 125V Straight Blade Power Inlet
Feature
ParkPower By Marinco 20 Amp 125-Volt Straight Blade Power InletUse 20Amp with any standard 20A extension cord
UV resistant housing and cap
White
Description
ParkPower By Marinco 20 Amp 125-Volt Straight Blade Power Inlet. Use 20Amp with any standard 20A extension cord. UV resistant housing and cap. White.10. Reliance Controls Corporation PC2020 20-Amp, 20-Foot Generator Power Cord for Generators Up to 5,000 Running Watts
Feature
Heavy-duty 20-foot cord sets with molded endsDesigned for use with Reliance manual transfer switches, transfer panels and power inlet boxes
Maximum generator running watts: 5,000
Maximum generator input: 20A @ 125/250 VAC
Perfect for connecting a generator and a transfer switch with a single cord
Description
The Reliance Controls 20-foot 20 Amp Outdoor Rated Generator Power Cord has NEMA L14-20 molded and watertight plug and connector ends. It is designed to provide a power connection between your generator and either an outdoor power inlet box or a transfer switch or panel. Since 1909, Reliance Controls Corporation has contributed more innovations that any other single manufacturer and has been awarded over 85 patents on manual transfer switches, time switches and accessories. Reliance Controls Corporation specializes in the manufacturing of a wide variety of electrical products. The primary product line consists of heavy duty time clocks and controls, generator accessories, transfer switches and transfer panels for portable generators and inverters. And after over a century of innovation, Reliance Controls Corporation has built an enviable reputation for high quality, superior engineering and exceptional customer service.11. C19 Connector - IEC 60320 C 19, Rated 20A, 250V - Iron Box # IBX-C19R
Feature
IEC C19 Female ConnectorIEC 60320 Standard
16A - 20A, 250V
Mates with Male C20 Plug or Inlet
Hassle Free Returns / No Restock Fee
Description
IEC C19 Power Cord connector mates with an IEC C20 Plug. Typically used in data center and network infrastructure facilities for high-end server equipment, routers, switches etc. Rated for 16A - 20A, 250V.12. Reliance Controls Corporation PC2010 20-Amp, 10-Foot Generator Power Cord for Generators Up to 5,000 Running Watts
Feature
Heavy-duty 10-foot cord sets with molded endsDesigned for use with Reliance manual transfer switches, transfer panels and power inlet boxes
Maximum generator running watts: 5,000
Maximum generator input: 20A @ 125/250 VAC
Perfect for connecting a generator and a transfer switch with a single cord
Description
The Reliance Controls 10-foot 20 Amp Outdoor Rated Generator Power Cord has NEMA L14-20 molded and watertight plug and connector ends. It is designed to provide a power connection between your generator and either an outdoor power inlet box or a transfer switch or panel. Since 1909, Reliance Controls Corporation has contributed more innovations that any other single manufacturer and has been awarded over 85 patents on manual transfer switches, time switches and accessories. Reliance Controls Corporation specializes in the manufacturing of a wide variety of electrical products. The primary product line consists of heavy duty time clocks and controls, generator accessories, transfer switches and transfer panels for portable generators and inverters. And after over a century of innovation, Reliance Controls Corporation has built an enviable reputation for high quality, superior engineering and exceptional customer service.13. Morris Products 89342 Generator Power Cord Sets, 10ft Length, 20A, 12/4C, L14-20 NEMA, 5.0Kw Max Input
Feature
Generator Power Cord Sets - Outdoor-safe Generator Power Cord Sets.Generator Power Cord Sets features include:
These generator power cord sets are designed for use with manual transfer switches, transfer panels, and power inlet boxes.
Available In 20 Amp & 30 Amp
