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Pollak 7-Circuit-Breaker Junction Box

Pollak 7-Circuit-Breaker Junction Box

Item # PK52249
Our Price: $46.29
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Shipping Weight: 0.97 lbs
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This circuit breaker junction box provides a neat, clean way to mount multiple circuit breakers to the firewall of your vehicle. Junction box has space for seven separate circuit breakers. 1-800-940-8924 to order Pollak accessories and parts part number PK52249 or order online at Free expert support on all Pollak products. Great prices and Fastest Shipping for Pollak 7-Circuit-Breaker Junction Box. Accessories and Parts reviews from real customers.
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  • Reviews (9)
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  • Videos (1)
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Pollak Accessories and Parts - PK52249

  • Trailer Wiring
  • Junction Box
  • Pollak

This circuit breaker junction box provides a neat, clean way to mount multiple circuit breakers to the firewall of your vehicle. Junction box has space for seven separate circuit breakers.


  • Junction box for studded circuit breakers
    • Provides neat, clean mounting point for multiple circuit breakers
    • Has space for 7 studded circuit breakers
    • Includes bus bar to dissipate heat buildup


  • Breaker slots: .20" x .30"
  • 1-Year limited warranty

52-249 Pollak 7-Circuit-Breaker Junction Box

Video of Pollak 7-Circuit-Breaker Junction Box

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Pollak Wiring PK52249 Review

Today we're going to review part number PK52249. This is the Pollak 7-circuit breaker junction box. Now this circuit breaker junction box will provide a nice, neat, clean way to mount multiple circuit breakers to the firewall of your vehicle. The junction box has space for 7 separate studded circuit breakers. Here's an example. I pulled one of the circuit breakers that is designed to fit in here.

It will allow 7 of these to be installed in here. Does provide a nice, neat, clean mounting point for all of the circuit breakers. If you'll notice this metal bar right here is a bus bar and helps dissipate any heat buildup that might occur using the circuit breakers. Basically what you would do is on the circuit breakers they have a little indentation on each end. They're designed to line up with the protrusion on each side of here. What you want to make sure is when you put in a circuit breaker it says aux on one side and battery on the other.

When you install these you want to make sure whatever wiring you have going in is all wired up correctly. Basically the way that you just push them in to the protrusion just like that and it will hold the circuit breaker in place. Then you run your wires in and do all your connections. Now it does include with this junction box the grommets, the holes. There's 2 holes on the side, 2 holes on each end. Whichever 2 you're not going to use, if you're going to run them in the ends and not on the sides, you can just take your solid grommet and just slide it right into place just like that.

Then if you're going to use the ends it includes 4 large-hole grommets that you can just slide in like that on each end. The same way over here. Then that way when you go to put your lid on it pretty much protects any elements from getting inside there and affecting your circuit breakers. Does also come with 4 lid screws so once your lid's going to be attached just like that, put your screws in there, tighten those down. It will hold your lid into place. It also comes with 14 nuts.

What those nuts are for is if you use 7 circuit breakers you'll have 2 nuts for attaching your wires to the circuit breaker. Then the circuit breaker would just pop off. It's held on in those protrusions on the indentations of the circuit breaker. Now I do want to give you a few measurements on this. Put the lid back on. Let's put it over the . There we go, just like that. The measurement I'm going to give you is the length. I'm not going to include the little mounting tabs, so the overall length is going to be 7-1/2" long. The width is going to be 3-3/4 wide. Then the height with the lid on is going to be right at 2-1/2". Then if you take the lid off the height without the lid is going to be right at 1-3/4". Then the measurement if you're needing the measurement of the bolt pattern mounting we'll measure center to center lengthwise and then center to center width-wise. If you put a ruler on it this way lengthwise is going to be right at 8-1/8" and center to center on the mounting holes is going to be right at 3-3/16 center to center for the mounting pattern that way. Going to just pop the grommets back off just like that. I'll put the lid back on and that should do it for the review on part number PK52249, the Pollak 7-circuit breaker junction box. .

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Customer Reviews

Pollak 7-Circuit-Breaker Junction Box - PK52249

Average Customer Rating:  5.0 out of 5 stars   (9 Customer Reviews)

This circuit breaker junction box provides a neat, clean way to mount multiple circuit breakers to the firewall of your vehicle. Junction box has space for seven separate circuit breakers.


You guys are great ,helped me adjust my order and everything came fast no worries thanks haven’t had time to install but everything is as it should be


On time





Exactly what I ordered. Fast shipping


Thanks you all madecmy day !!!!





See what our Experts say about this Pollak Accessories and Parts

  • Comparing Regular, Fused, and Circuit Breaker Junction Boxes for Trailer Wiring
    Given that trailer wiring only consists of basic light functions, 12 volt power, and brake output a system of fuses is not necessary because it is easy to determine if something is not working. If there was a short, the way you would know with or without a fuse junction box is going to be the same either way. You still have to fix the short and in the case of a fused junction box replace the fuse. A fused junction box would prevent a short from going any further than the junction box....
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  • How to Protect Circuit Breakers and Electrical Connections on a Trailer
    I strongly recommend protecting any circuit breakers, including the Pollak 30-Amp Auto Reset Circuit Breaker, # PK54230, from the elements. Corrosion and road grime can build up on the terminals and cause problems. We typically use junction boxes, like part # PK52249, to protect electrical contacts on a trailer. These boxes have rubber grommets in the access holes for wires to keep water and dirt out. They can bolt to any surface strong enough to hold a plastic box.
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  • What Are The Dimensions Of The Pollak 7-Circuit-Breaker Junction Box # PK52249
    The dimensions on the Pollak 7-Circuit-Breaker Junction Box, part # PK52249, are as follows, With the mounting holes on the left and the right the length (right to left) from one edge of the mounting hole tab to edge of the other mounting hole tab is 8-11/16 inches. The dimension from center of one mounting hole to the center of the other mounting hole is 8-5/64 inches. Width is 3-3/4 inches. The dimension from mounting hole center to other mounting hole center is 3-3/16 inches. Height...
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  • Trailer Brake Lights Kick Off While Running Lights Are On
    The issue you are experiencing with the running lights causing the brake lights to cut out is caused by a poor ground as with most trailer lighting issues. That said, when most people check the ground they simply look at the wire and make sure it is still attached but this is not sufficient. I am not sure how your trailer tail lights are grounded but you will need to remove each one, make note of the ground used, and then re-secure with a new bare metal surface ground. This will need to...
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  • Does Junction Box Need to Ground to Trailer Frame
    Yes you would want to run a ground from the junction box to the frame of the trailer so that all of the trailer wiring circuits are properly grounded when installing the junction box # PK52249.
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  • Recommendation For Converting A 13 Way European Plug To US 4-Way Flat
    For your European lighting connection on your bike rack, I recommend you use a few adapters for the easiest connection. If you can get a 13 pin to 7 pin European connector (which we don't carry) then you can use the Trailer Connector Adapter for Land Rover - 7-Way, Round Pin, European Style to 4-Way Flat # 118710 and you wouldn't need to do any splicing. If not, then you will need to divide out the functions to convert to your US 4-way flat. The Vehicle to Vehicle Tail Light Converter...
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  • What Size Circuit Breaker is Recommended for 8 Gauge Wire
    The circuit breaker I recommend is the 40-amp circuit breaker # 9510, it is .66 inches long and may fit inside a junction box easier. However, the place I would mount it is between the charger and the battery on the trailer side. The junction box I recommend is the Pollack # PK52249 as it provides neat, clean mounting point for multiple circuit breakers. The measurements are 7-1/2 inches long and 2-1/2 tall. See diagram to the right.
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  • Instructions for Circuit Breaker Installation in the Pollak 7-Circuit-Breaker Junction Box # PK52249
    I spoke with my contact at Pollak and found that the Pollak 7-Circuit-Breaker Junction Box, item # PK52249, has a metal bar in the bottom of the junction box that is designed to accept metal base circuit breakers that do not have a mounting bracket attached to the bottom. These circuit breakers have recesses in the bottom that accept the studs sticking up from the metal bar in the junction box. There are no directions available for the junction box. Our part numbers for the appropriate...
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  • What Circuit Breakers Are Compatible With Pollak 7-Circuit Breaker Junction Box?
    You will need to verify the power draw required for the particular circuit you are adding a circuit breaker. Then you be able to select either a 20-Amp # PK54-120, 30-Amp # PK54-130 or 40-Amp # PK54-140 circuit breaker to install in the Junction Box # PK52249.
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  • Is the Bus Bar the Common Power Point on the Pollak 7-Circuit-Breaker Junction Box
    On the Pollak 7-Circuit-Breaker Junction Box, # PK52249, the bar inside is just a mounting bracket for circuit breakers. You would connect power as needed to each circuit breaker. The bar was also designed to dissipate excess heat generated from the items attached to the circuit breakers in the box. The box accepts studded circuit breakers like # PK54-120, # PK54-130, and # PK54-140.
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  • Converting European 7 Way on Trailer to Work with US 4 Way on Lexus GX460
    Thanks for the pictures! Since your trailer is currently equipped with a European style 7-way connector and your Lexus has a US style connector, you will need to cut off the connector on your trailer and install a US style like the Wesbar 4-Pole Flat Connector, # W787268, along with Tail Light Converter, # 118158. You will need to start by wiring the tail light converter to the 4-way connector, color for color. The next step will be to wire the output end of the converter to the wiring...
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  • Needing a 2-3 Wire System that will Seperate the Turn Signals from Stop Signal
    I do have a part that will work for what you are needing, but the Hopkins Tail Light Converter Kit, part # HM48895, will not take a 2 wire signals and split it into a 3 wire signal. To split your 2 signals into 3 you will want to use the Tow Ready Vehicle to Vehicle Tail Light Converter, part # 118158. This will take your combined turn and stop wires and separate them into right turn, stop, and left turn wires. Please note that this converter does not work well with LED lights. Another...
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  • Battery Management System To Charge All Batteries Types On A Trailer From Solar, Shore, and Vehicle
    To charge your batteries on your 2015 Lance 1575 from your vehicle or solar power and that is compatible with lithium batteries, I recommend the The Manager30 Battery Management System with Lithium Profile Item # RED88FR and the Pollak 7-Circuit-Breaker Junction Box Item # PK52249. The junction box helps protect the battery sensor from corrosion. This kit is to charge and manage your batteries from solar power and from shore power. This kit operates like 6 products in 1 - auxiliary battery...
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  • What is the Best Caulk for my RV?
    There are going to be two options for best caulk or sealant for your RV and it is going to depend on where your are using it. If you are on your roof you will want a self leveling sealant like the Alpha Systems 1021 Self-Leveling Sealant for RVs - White - 10.3 oz - Qty 1 item # AL98KV. This sealant can be used on skylights, vents, and other horizontal surfaces of your RV roof. The strong, weather-resistant formula works with rubber, metal, and fiberglass. It is a rubber based formula which...
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  • Parts Needed for Custom Wiring a Trailer For Separate Turn and Brake Lighting
    In order to have separate turn and brake lights on your trailer, I strongly recommend using a 2-wire to 3-wire converter, like the Tow Ready # 118158 on the trailer. This will allow you to have 4-way connectors on both the vehicle and the trailer. The 4-way connectors are much more common than 5-way connectors, and will allow to you tow other things with your vehicle, or tow your trailer with other vehicles, without the need for an adapter. This converter box is not designed to be exposed...
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Info for this part was:

Employee Tyler C
Written by:
Tyler C
Employee Robert G
Expert Research:
Robert G
Employee Michael H
Expert Research:
Michael H
Employee Jeff D
Expert Research:
Jeff D

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