Connecting to an industrial generator at an event

[Learn2Q]

As I travel the country competing on the Pro BBQ Circuit, we routinely have industrial portable generator power brought in to supply power to all competitors. The rental company installs spider boxes with 20 amp outlets for each person to get power from. My rig is the center piece to all the events and needs at least 50 amps of power. My question is this, how do I adapt my traditional four prong RV 50 amp shore power cord to connect to these industrial generators? They used connections like it shows in the picture. I first thought these were boat type twist connectors, but they are not. Notice the center of the plug. The male end had a small metal cone shaped piece that fits there.

Is is simply stripping the end off one these cords and putting the proper female connector? Do I have to have a custom spider box with a breaker built? If so, what type of place has the knowledge to do that?
thanks,
Lots of info here.

["007"]

Looks like thats a 50amp all right they should be able to tell you what dog bone adapter you need to plug your 50amp cable into.
Is there a MFG name on their plug?
I'd make sure you have a surge protector for coach also.

[Learn2Q]

Yes it's 50 amp, but there is no adaptor for this connection. That's my dilemma. There are a few that look like they will work, but they are not the right kind. I've taken this cord end in to several RV places. They all scratch their heads.

[bullheaded]

Home Depot or Lowes...buy the ends and a 2 ft of cable. Might want a disconnect in between.

[bullheaded]

If all else fails for that male connector might try Graingers.

[Learn2Q]

Grainger might be my best bet. Home Depot and Lowes does not sell these connections.

[KIX]

Hubbell or Cole-Hersee should have the connector you need

[Learn2Q]

Thanks Kix!

[RV Wizard]

This is the old style 50 amp twist lock connectors the RV industry use to use. The ground connection has changed to an outside connector instead of the center post type. An electrical supply should have or be able to get a match. As mentioned get a Surge Guard type protection for your coach and keep us posted. Good luck at the BBQ competition.

[Doug Sage]

These industrial type generators can have the voltage set at different levels. Sometimes people will set them high expecting that when the load of users hits the voltage will go down to the nominal 120 volts. The problem is that if you are an early arriver you can plug in and get hit with 135 + volts. I know because this happened to me. The only protection is a Surge Guard type of device. I strongly recommend on in this situation.

[Theberrys]

Troy

It's probably on this page somewhere. I can't see a NEMA number but if you can find one it will be simple to find from McMaster-Carr
Dick

[alvinc]

Take another picture of the plug, there is printing inside that could reveal the part number.

[alvinc]

Think I found it.... the Hubbell CS6365C is the plug shown in the picture. The catalog page is: http://www.hubbellcatalog.com/wiring...s/Page-B57.pdf

Page 19 of this brochure (page 21 in Acrobat) shows the other compatible parts: http://www.hubbellnet.com/max_htm/PD...rary/h4636.pdf

What you want a bet, these are expensive. $84 at Stayonline.com

[Iron Man]

Can't help with the plug, but I agree about issues with high/low voltage. That can be a bad issue. Look at Progressive Industries.