Electrical

Electrical Questions? Ask an Electrician Online.

Ask an Expert,
Get an Answer ASAP!

Electrical

how to wire a Nema 6-50R to a Nema L14-30P... understand the

Customer Question
differences but application does not...
how to wire a Nema 6-50R to a Nema L14-30P... understand the differences but application does not require a 50amp rating, only 30amp, and standard product comes with 6-50P...
Submitted: 6 years ago.Category: Electrical
Show More
Show Less
Ask Your Own Electrical Question
Answered in 4 hours by:
1/11/2012
Electrician: John D., Master Electrician replied 6 years ago
John D.
John D., Master Electrician
Category: Electrical
Satisfied Customers: 50
Experience: Master Electrician/Class A Builder
Verified

Hi Sir or Madam, I look forward to resolving your electrical problems.

Please provide more information about your project. A NEMA 6-50R is a straight blade receptacle and a NEMA L14-30P is a locking plug. The two cannot mate, it is impossible. It is also highly inadvisable and unsafe to mix amperages of devices in a device. The amperages of each device should match the rated output of the device.

Ask Your Own Electrical Question
Customer reply replied 6 years ago
What I'm trying to do is create an adaptor cord that would allow me to bridge between the 6-50 male plug, hence my request for a 6-50 receptacle, and at the other end it needs to have a L14-30 male plug to be inserted in a L14-30 receptacle.

This project is simply to allow running an inverter welder off a portable generator. Both are small and in addition, my input demand will not be anywhere close to 30 amps... In fact, I'm just looking for this an a backup should the new arise meaning this is not intended to be my running condition, just an opti
Electrician: John D., Master Electrician replied 6 years ago
This is not possible. The 6-50 plug is a three wire connection. The L14-30 receptacle is a four wire connection. As you know, the devices are rated for different amperages. Any connection between these two devices will be unsafe for several reasons. Unfortunately, you cannot make the connection which you are attempting.
Ask Your Own Electrical Question
Customer reply replied 6 years ago
How about going making the cord from 6-50R and an L5-30 plug? Both are 3 wires.....
Electrician: John D., Master Electrician replied 6 years ago
True, both are three wires. One is a 30 ampere device, the other is a 50 ampere device. Connection between the two is unsafe.
Ask Your Own Electrical Question
Customer reply replied 6 years ago
How about a cord using a 6-30R and an L5-30P?
Electrician: John D., Master Electrician replied 6 years ago
A 6-30R is a 2 pole 3 wire 250 volt receptacle and a L5-30P is a 2 pole 3 wire 125 volt plug. The two devices are not compatible.
Ask Your Own Electrical Question
Customer reply replied 6 years ago
How aboutwe a 6-30R and L14-30P?
Electrician: John D., Master Electrician replied 6 years ago
This won't work. Period. End of story.
Ask Your Own Electrical Question
Customer reply replied 6 years ago
Then please suggest a solution rather then telling me it won't work. You're the expert right? Why do I find other sources saying its possible?
Electrician: Matt W., Mr. replied 6 years ago
Matt W.
Matt W., Mr.
Category: Electrical
Satisfied Customers: 63
Experience: Fully licensed and insured electrical contractor
Verified
The L 14 30 R is on the generator and you want to connect to the 6-50P, Correct?
Ask Your Own Electrical Question
Customer reply replied 6 years ago
that is correct
Electrician: Matt W., Mr. replied 6 years ago

You need to get the matching L 14 30 P (male plug ). Connect the grounnd green , off the 6-50 P you strip and cut off, wire to the green screw of the male plug (L-14-30 P). The silver screw does not connect to anything because your 6 - 50 P is just 2 hots and a green ground. All that is left is the 2 hots from the 6-50 P, these terminate to the brass colored screws of the male L -14-30. Make sure no stripped cable or copper is hanging out of the backside of the plug when you put it together. Read the directions to make sure your plug is put together properly and it is not loose in any fashion. Finally make sure the voltage rating of the equipment you are hooking up matches the voltage rating of the generator output Recept. O.K current you said is not the issue but voltage will be if you don't make sure.

Matt W.
Matt W., Mr.
Category: Electrical
Satisfied Customers: 63
Experience: Fully licensed and insured electrical contractor
Verified
Matt W. and 87 other Electrical Specialists are ready to help you
Ask your own question now
Ask Matt W. Your Own Question
Matt W.
Matt W.
Matt W., Mr.
Category: Electrical
Satisfied Customers: 63
63 Satisfied Customers
Experience: Fully licensed and insured electrical contractor

Matt W. is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future.

JimmyBagley, IA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Mike

Mike

Master Electrician

1,426 satisfied customers

Licensed Master Electrician - OnQ Certified Data Voice Audio Video Installer

Jason

Jason

Service Technician

3,942 satisfied customers

Over 20 years of experience in all types of installations, troubleshooting, and repairs.

Mike G.

Mike G.

Master Electrician

7,826 satisfied customers

Proven Professional 48 years Experience

Kevin

Kevin

Licensed Electrical Contractor

3,870 satisfied customers

31 years Licensed Electrical Contractor in Illinois, Adjunct College Electrical Instructor, Former Electrical Inspector, Diploma: Digital Electronics, FCC Technician License

AssuredElectrical

AssuredElectrical

Master Electrician

3,264 satisfied customers

Contractor-42+ Years in the ElectricalTrade

electrifier

electrifier

Master Electrician

1,458 satisfied customers

Electrical contractor and electrical inspector for over 24 years with phone and networking expertise

Rich

Rich

Master Electrician

1,115 satisfied customers

Over 35 years residential, commercial, industrial wiring, install, troubleshoot, service, maintain

< Previous | Next >

Related Electrical Questions
I have a ac 1- 220v mini welder with a two prong plug. How
I have a ac 1- 220v mini welder with a two prong plug. How would i wire this to plug into my house … read more
Terry Peterman
Terry Peterman
The Internet Electrician
Vocational, Technical or Trade School
18 satisfied customers
I was given a new arc welder for an early Christmas gift. I
I was given a new arc welder for an early Christmas gift. I would like to know what specifically do I need to connect this up to my shop without causing major problems. (I.E. size of outlets, wire gau… read more
George Smith
George Smith
Vocational, Technical or Trade School
324 satisfied customers
I have a 4KW inverter generator that supplies 120V/30amps
I have a 4KW inverter generator that supplies 120V/30amps via an L5-30 receptacle. I want to be able to choose which circuits in a 16-circuit sub-panel I power when the grid goes down (obviously not a… read more
Kevin
Kevin
Licensed Electrical Contractor
Diploma
3,870 satisfied customers
I just purchased a Hobart 210 welder that runs on both 115
I just purchased a Hobart 210 welder that runs on both 115 and 230v. I set up a 30 amp circuit single phase using 10 gauge wire. The welder runs fine when plugged into my 20 amp 115 volt circuit but o… read more
Sam I
Sam I
Electrician
B.S.
474 satisfied customers
I have a JFY solar inverter that has fault on it. "DCinj
hello, I have a JFY solar inverter that has fault on it. "DCinj Failure" can you tell what this means? Is it a fault with the inverter or with the solar panels? … read more
Kevin
Kevin
Licensed Electrical Contractor
Diploma
3,870 satisfied customers
I have a 240 volt arc welder with three wires,, black and, i
I have a 240 volt arc welder with three wires, white, black and green, i want to hook it up to my generatorL14-30 4 prong plug. to get 220 do I use a jumper cable in the plug from the black wire on on… read more
Kevin
Kevin
Licensed Electrical Contractor
Diploma
3,870 satisfied customers
I have a Lincoln 180 dual welder that I would like to
I have a Lincoln 180 dual welder that I would like to connect to a 10-30 R that's already wired in my garage.The welder requires 20 amps at 230V.Can I make an extension cord with a 10-30/50 P at one e… read more
Leamon Rollo
Leamon Rollo
Vocational, Technical or Trade School
18 satisfied customers
I have a question about a 49 to 70 amp small stick welder,
hi,i have a question about a 49 to 70 amp small stick welder, my book says the effective input amps is 8.5 and the maximum input amps is 25.8 but it says to use a 20 amp breaker also,now it says it is… read more
Sam I
Sam I
Electrician
B.S.
474 satisfied customers
Need help wiring a new inverter/ charger in a fifth wheel.
need help wiring a new inverter/ charger in a fifth wheel. Its a 4 wire (L1 L2 n g) 50 amp system, but the charger built into the inverter is only 3 wire (L1 n g). What happens if i just drop one of t… read more
Chad S.
Chad S.
Owner
High School or GED
3 satisfied customers
I have a Hobart 187 MIG Welder that I want to get wired.
I have a Hobart 187 MIG Welder that I want to get wired. What size wire should be used? It takes a 50v plug at 230v. … read more
WCohn
WCohn
Journeyman Plumber
Journeyman License
1,353 satisfied customers
I just bought an AC welder and it did not have the
I just bought an AC welder and it did not have the electrical plug. The power cord has three wires -- blue, brown, green. I am thinking the green is the ground. Does it matter which of the two remaini… read more
Mike G.
Mike G.
Master Electrician
Vocational, Technical or Trade Scho
7,826 satisfied customers
I have a DR3624 Xantrex inverter system. My solar is
hello Pearl ,I have a DR3624 Xantrex inverter system. My solar is charging batteries fine but when I start my generator,my light for charging is no longer coming on and there is no charging going on t… read more
Kevin
Kevin
Licensed Electrical Contractor
Diploma
3,870 satisfied customers
I need an opinion on which inverter type i should use for my
i need an opinion on which inverter type i should use for my solar panels. i have 25 trina tsm-245 pa05 panels. I am contemplating using enphase M250 individual units as opposed to a central system. w… read more
Kevin
Kevin
Licensed Electrical Contractor
Diploma
3,870 satisfied customers
I have a 220v welder with std 3 wire 6-50 NEMA male, and
I have a 220v welder with std 3 wire 6-50 NEMA male, and need to change power cord to use a 4 prong RV-type twist plug. What to do with the spare wire connected to the welder? Thanks … read more
George Smith
George Smith
Vocational, Technical or Trade School
324 satisfied customers
What would happen if a welder pulls 55 amps or 60... on a
What would happen if a welder pulls 55 amps or 60... on a nema 6-50 r receptacle?Will it be ok?… read more
Kevin
Kevin
Licensed Electrical Contractor
Diploma
3,870 satisfied customers
I have a 250 amp welder wired for 120v plug in, where should
I have a 250 amp welder wired for 120v plug in, where should I plug it into? Washer and dryer outlet?… read more
George Smith
George Smith
Vocational, Technical or Trade School
324 satisfied customers
Match welder circuit install... Outlet is going to be 520
Miller match welder circuit install... Outlet is going to be 520 feet away from main feeder panel...My thoughts.... 50amp double pull breaker 60 -75°c termination #2 awg THHN copper.Will this work? Tr… read more
Kevin
Kevin
Licensed Electrical Contractor
Diploma
3,870 satisfied customers
I have a 25 amp rated D.C. Inverter stick welder. We had an
I have a 25 amp rated D.C. Inverter stick welder. We had an addition added onto the house so I had the electrician put a receptical on that fit the welder. The only problem is the switch on the fuse b… read more
Steve
Steve
Chief Engineer
9 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x