Model # PB30

Internet #202213702

Store SKU #725625

Reliance Controls 30 Amp Power Inlet Box
0851890000089

Reliance Controls

30 Amp Power Inlet Box

  • Outdoor rated plugin box for a portable generator
  • To connect a generator to a transfer device for backup power
  • 30 amp 4-wire L14-30 style power inlet
$53.98 /each

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Product Overview

The Reliance Controls 30 Amp Power Inlet Box is designed for outdoor use and can be hardwired directly to a manual transfer switch or transfer panel, eliminating the need for cords running through windows or doors. This raintight unit includes a flanged inlet plug, an inlet cover and 4 combination knockouts.

  • Connects a generator cord to a manual transfer switch or transfer panel
  • Raintight metal cover ideal for outdoor mounting
  • NEMA L14-30P rated flanged inlet plug
  • 30 Amp s, 125/250 VAC, 7,500 watts
  • Generous wiring space facilitates rough-in
  • UL listed
  • Face of the box is removable for fast installation
  • 4 combination 1/2 in. and 3/4 in. knockouts

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Customer Questions & Answers

30 Amp Power Inlet Box
30 Amp Power Inlet Box

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11 answers

What type of connection / plug is used at the generator to feed a 230 volt load?

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Asked by
ELM
New Port Richey, FL 34655
November 7, 2012
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Answers (11)

Asked by
E.H.T., NJ
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March 25, 2015
Answer: 
the best way to obtain a correct ( plug ) is to do it at the time of a generator purchase. TRY it, before you buy it. should you HAVE a generator without a manual, look at the design of the connection at the generator output panel. MAKE a sketch, look close, record details, go to local HD store, ask for help, buy one. DO NOT discard your receipt .ELECTRICAL devices can NOT be returned if they are USED.
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Asked by
Maine
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March 3, 2015
Answer: 
It depends on the configuration of the outlet on the generator.
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Asked by
NY
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February 4, 2014
Answer: 
Could be a twistlock plug or a 230v straight blade device , depending on the generator.
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Asked by
Davison, MI 48423, USA
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January 21, 2014
Answer: 
4 plug twist lock plug. Home Depot carries the Reliance brand. It will match your generator 240 plug
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Asked by
Fairview, TN, USA
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January 14, 2014
Answer: 
Most higher power generators for home use will have a female L14 30 (4 conductor, twist lock) connector on the generator itself. You plug into it with a male L14 30 connector. This is typically one end of a "30 Amp Generator Power Cord. The other end of the Generator Power Cord would be a female L14 30, just like the generator itself. This would describe an application where you were connecting the Read More
Most higher power generators for home use will have a female L14 30 (4 conductor, twist lock) connector on the generator itself. You plug into it with a male L14 30 connector. This is typically one end of a "30 Amp Generator Power Cord. The other end of the Generator Power Cord would be a female L14 30, just like the generator itself. This would describe an application where you were connecting the generator to a Power Inlet Box, such as is used for a Power Transfer Switch. For other terminations, the work should be done by a qualified electrician. Read Less
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Asked by
michigan
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December 10, 2013
Answer: 
230 v twist lock
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Asked by
Kentucky, USA
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November 17, 2013
Answer: 
Portable generators have female recepticles on the power board mounted on the generator. The 220 volt receptical is a NEMA twist-lock 30 amp. The power cable attached requires a minimum 10 AWG stranded wire (male plug on one end and typically a female receptacle on the other end). If connecting to an electrical panel in a stand-by application, you would normally use a weather proof box that has a male Read More
Portable generators have female recepticles on the power board mounted on the generator. The 220 volt receptical is a NEMA twist-lock 30 amp. The power cable attached requires a minimum 10 AWG stranded wire (male plug on one end and typically a female receptacle on the other end). If connecting to an electrical panel in a stand-by application, you would normally use a weather proof box that has a male plug which connects to your power cables female end. The cable through the structure is (again) a minimum 10 AWG (rated for 30 amps) running to the breaker panel.
Hope this is helpful. See photo for my stand-by generator setup.
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Asked by
Babylon, NY 11702, USA
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September 17, 2013
Answer: 
L14-30 , 4 pin twist lock. You can buy the gen cord premade.
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Asked by
Westchester, NY, USA
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August 21, 2013
Answer: 
30 amp
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Asked by
Glen Allen, VA, USA
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November 21, 2012
Answer: 
125/230v twist lock four wire
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November 7, 2012
Answer: 
The best and most common way to connect a portable generator to a household electrical system is through the generator's four conductor locking receptacle. The exact configuration can vary, but most generators use an L14-30 style plug that matches the inlet on the 30 amp Power Inlet Box.
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5 answers

Operating in Rain

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Asked by
Haverhill. Mass
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July 30, 2014
Is this Power Inlet Box water tight enough to operate in the rain while plugged in ?

Thank you.
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Asked by
Aiken, SC
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Home Improvement Profile: DIYer
August 19, 2016
Answer: 
sumtime a swimmin noodle can be cut to fix stuff and buld stuff like round power cord gaskets
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Asked by
michigan
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January 17, 2016
Answer: 
NO
This box is "wet weather resistant" with the cover closed or not in use.
A "while in use" style box has a different design and is more conducive to wet weather use.
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Asked by
E.H.T., NJ
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March 25, 2015
Answer: 
YES. however use common sense. SAFETY is your primary goal. the first thing to do is locate it where it can do the best job for you. should a situation come up where water , snow can reach it from the ground, you have a problem. do it correct the first time.
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Asked by
Maine
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March 3, 2015
Answer: 
The enclosure is 3R rated, which means it is designed for wet locations.
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Asked by
Atlanta GA
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Home Improvement Profile: Professional
July 30, 2014
Answer: 
Hi Mike,
It really will be up to the Twist Lock plug you use that will determine how water tight it would be. The inlet box itself is rain proof, but make sure the 'gate' for the plug is closed when not in use.
Joseph
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This question is from 30 Amp Power Inlet Box
 
2 answers

Is this box available in 30amp 120v 3-wire twist lock

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Asked by
Redding, CA
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July 19, 2016
I have a NEMA 3-Wire L530C twist lock female plug-in attached to a 10 gauge power chord for temporary house power to my RV. This outdoor box would work if it were 3--wire (actually a box that the outlet came out the bottom would be better and more water proof). Are there 3-wire instead of 4-wire twist-lock outlets in outdoor boxes w/outlet cover available?
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Asked by
Aiken, SC
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August 19, 2016
Answer: 
It's in the store near the household receptacles. They've also got the mounting box and a cover kit.
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August 19, 2016
Answer: 
Thank you for your recent inquiry with The Home Depot. This is typically a store stocked item. Contacting your local store may provide more options. We appreciate your business and look forward to serving you in the future. Thank you for shopping Home Depot.
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I have a 5000 watt generator with 240- 40 amp output, can I use a 30 amp or 50 amp power inlet box?

This question is from 30 Amp Power Inlet Box
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October 29, 2016
I have a 5000 watt generator with 240- 40 amp output, can I use a 30 amp or 50 amp power inlet box?
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Customer Reviews

30 Amp Power Inlet Box is rated 4.7 out of 5 by 63.
Rated 5 out of 5 by from Quality product. Simple enough install. Can be wired through the back of the unit, making for a v... Quality product. Simple enough install. Can be wired through the back of the unit, making for a very clean install. Much nicer than running a cord inside from out at your portable generator.
Date published: 2017-01-17
Rated 5 out of 5 by from It's the perfect thing for hooking up your 30 amp generator to your panel. It's in an outdoor rat... It's the perfect thing for hooking up your 30 amp generator to your panel. It's in an outdoor rated box and weather tight flip cover. Exactly what I needed. Knock outs on bottom and sides.
Date published: 2016-11-07
Rated 5 out of 5 by from This mounted easily on the outside of my garage. It works great for giving me access to my genera... This mounted easily on the outside of my garage. It works great for giving me access to my generator transfer panel on the inside of the garage.
Date published: 2016-12-06
Rated 5 out of 5 by from It is a well made inlet box but it turned out that I didn't need it. I bought a transfer switch t... It is a well made inlet box but it turned out that I didn't need it. I bought a transfer switch that had the power inlet jack built in.
Date published: 2016-12-28
Rated 5 out of 5 by from Solid Product The inlet box is well made and comes with well written and easy to understand instructions.
Date published: 2016-08-02
Rated 3 out of 5 by from Good product. A little pricey Good product. A little pricey
Date published: 2016-12-27
Rated 5 out of 5 by from This box is a great inlet for your generator After going through three hurricanes, I decided that I did want a generator to provide power for the refrigerator and the television. We found that you really need the TV to keep track of where gasoline is and when power is likely to be restored and what is in your neighborhood in the way of storms. Without an inlet box like this, you wind up with extension cords either through a window or through a door. In either case, you now have mosquitos. With this box on the outside, and a 2 gang duplex outlet on the inside, I was able to take the 240 volt 2 phase power into the inside of the house where it became 2 120v duplex outlets. My generator only puts out 2 120 volt circuits that are each limited ot 15 volts by circuit breaker if you use the L14-30R outlet that this box enables you to get to the house. I used a heavy duty 10 awg extension cord, also from home depot, from the generator to this box so that there is very little voltage drop getting to the inside extensions to the refrigerator, TV and satellite receiver, Computer, printer, cable modem, fans and lights. This box is a critical item for the storm preparations.
Date published: 2011-06-12
Rated 5 out of 5 by from Great Generator Power Inlet Box for a Mobile Home It was a bit daunting for a basic DIY guy like me, but I got everything I needed to connect my emergency power generator to my load center (aka fuse box), and this Power Inlet Box from Reliance Controls is the centerpiece. It is super solid and high quality, and pretty much immune to rain when closed. I recommend using it with a matching twist-lock L14-30 connector also from Reliance Controls for maximum electrical contact. ( Model # L1430C Internet # 202216503 ) I used 6 gauge wire (I like to over-spec) which was a struggle to rout neatly in the box but the connections are rock-solid. Remember if you are going to connect a generator to your load center you also need a Generator Interlock to be safe and legal. This makes sure you cannot switch on both the generator and the grid feed at the same time.
Date published: 2015-09-16
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