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Pollak Circuit Breaker - Cycling/Automatic Reset - 40 Amp - Straight Mount Bracket
Pollak

Pollak Circuit Breaker - Cycling/Automatic Reset - 40 Amp - Straight Mount Bracket

Part Number: PK54540
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This single-pole, thermal circuit breaker features a continuous cycle with an automatic reset. Breaker prevents battery from draining and auxiliary application from overdrawing. Typically used on hot leads. 1-800-940-8924 to order Pollak accessories and parts part number PK54540 or order online at etrailer.com. Free expert support on all Pollak products. Great prices and Fastest Shipping for Pollak Circuit Breaker - Cycling/Automatic Reset - 40 Amp - Straight Mount Bracket. Accessories and Parts reviews from real customers.
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  • Reviews (45)
  • Q & A (0)
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Pollak Accessories and Parts - PK54540

  • Wiring
  • Circuit Breaker
  • Pollak
  • 40 Amp

This single-pole, thermal circuit breaker features a continuous cycle with an automatic reset. Breaker prevents battery from draining and auxiliary application from overdrawing. Typically used on hot leads.


Features:

  • Metal housing with straight mounting bracket
    • 2-Piece design
    • Attached by spot welding
  • Cycling automatic reset
    • Cycles continuously during over-current condition
    • Returns to run mode when source of over-current is removed
  • (2) 10-32 Studs
    • Yellow, dichromate (copper color) plating on battery terminal
    • Zinc plating (silver color) on auxiliary terminal
  • Straight mounting bracket
  • SAE Standard J553 compliant


Specs:

  • Applications: Accessory circuit, cooling fan, door locks, headlamps, tail lamps, window lift, sunroof, trailering package, electric brake controls
  • Terminal dimensions: 0.66" long
  • Current rating: 40 DC amp
  • Voltage rating: 12 VDC (Voltage Direct Current)
  • Operating temperature: -10 degrees F (-23 degrees C) to 150 degrees F (65 degrees C)
  • Storage temperature: -20 degrees F (-29 degrees C) to 200 degrees F (93 degrees C)
  • 1-Year limited warranty


54-540 Pollak Single-Way, Thermal Circuit Breaker - Cycling/Automatic Reset - Straight Mounting Bracket - 40 Amp

Alternate to 9510





Customer Satisfaction Score:


Customer Reviews

Pollak Circuit Breaker - Cycling/Automatic Reset - 40 Amp - Straight Mount Bracket - PK54540

Average Customer Rating:  4.8 out of 5 stars   (45 Customer Reviews)

This single-pole, thermal circuit breaker features a continuous cycle with an automatic reset. Breaker prevents battery from draining and auxiliary application from overdrawing. Typically used on hot leads.

by:

etrailer.com has been an easy company to work with. They were helpful in making sure we had what we needed to install our trailer hitch successfully. Thank you for your help. We have recommended you to friends and family and will continue to do business with you in the future.

Debbie H. profile picture

Debbie H.

5/13/2021

Still a great product and a great company!



by:

Worked perfect in my dump trailer to replace a burned up one. Still working right a year later.



by:

All things listed were required although the terminals did not have a large enough opening as I needed. Also, it said that I needed 10 gauge wire but my Chevrolet is wired with 14 gauge so I have to modify the wiring. The idea was to hot wire the 12v pin on my stock 7 pin connector to supply my trailer with the necessary 12v to charge the trailer battery when on the road. However, after checking the stock wiring, I found it to be in good condition so I was able to reuse the existing stock wiring which was still in the stock wiring harness to the 7 pin hitch at the rear of my vehicle. I was able to pull the existing 12v wire off of the 12v pin in the fuse box and attach it to the new Pollack circuit breaker I purchased from etrailer.com I then only needed to use about 1 foot of the 10 gauge wire to go from my battery to the other pole of the Pollack circuit breaker. Very simple procedure sine I didn't have to run the 10 gauge back to the rear of the vehicle and attach it to the existing 14 gauge wire I had. The third picture I've posted with the red and blue wires next to each other show you the 10 gauge blue wire I purchased and the 14 gauge stock red wire that was in my truck.



by:

THANKS! The shipping a little long.



by:

Added this fuse to the TOAD vehicle for the battery charge while towing.



by:

Perfect addition to protect my Tekonsha RF Prodigy wireless trailer brake controller. Simple to install and excellent protection.



by:

Lots of purchases from etrailer. They have the parts I need at the best prices. And the technical info I need to get the job done.

Lee profile picture

Lee

9/21/2018

A year later and all my etrailer products still working.



by:

Thanks for the detailed help with the wiring harness and wiring tips for my Nissan Pathfinder. This made the installation a breeze.



by:

Works as designed. Another great product from etrailer

Neal B. profile picture

Neal B.

11/4/2017

Product works as designed. Havent had any issues with it at all.



by:

Made my connection to a F150 for the brake controller very easy. The staff at Etrailer is to be commended as to how helpful they were with my hookup, on a Sunday no less. Outstanding customer support. Thank you!



by:

I rated the product in the middle category because until the charging system fails, I will not know how well this device works.



by:

Item is just what we wanted and ordered. It came pretty quick. Satisfied customer here :)



by:

The customer service I received was second to none. William was very knowledgeable in ever aspect of my purchase. Hitch is of high quality and good appearance. Will definitely buy their again.



by:

connectors and breakers to hook up my brake controller arrived in order, installed easily, and lasted 1 year so far...



by:

Easy installation. Super easy to use.



by:

Works good with my application.

James C. profile picture

James C.

1/5/2018

Working great



by:

Used this in a circuit to wire in my truck to charge my travel trailer battery while driving on the road. Works great.



by:

Great service as always!! Fast delivery! Etrailer has it all covered with product and install information, they make it easy!!



by:

I have not performed my installation yet but this is to compliment you on your order processing and shipping. This is my second order and everything was well packaged and delivered right on time. I recommend your site to people all the time. Thanks!



by:

Item was purchased to replace circuit breaker on a backhoe. It was cheaper then backhoe dealer,seems to be the same thing. I will try it,hope it works like I think it will.



by:

Great product, exact replacement in my loader. Hard to get the old one out.



by:

Install couldn't be easier. Delivery was fast. Video showed everything I needed to know.
Thanks etrailer



by:

perfect replaement



by:

Product as described, works in my appli cation.



by:

Does what is designed to do.

Clint M. profile picture

Clint M.

5/3/2018

Still working just as its supposed to.


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45
Show More Reviews

See what our Experts say about this Pollak Accessories and Parts

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    So for something like the Universal Installation Kit for Trailer Brake Controller # ETBC7 the 12V hot lead would get connected to a 40a circuit breaker # PK54540 and then to the battery from there. This means that it'll be hot all the time, but if it's not connected to anything it won't draw any power which in turn, won't drain your battery. If you did want that circuit to only be on when the vehicle is on, then you'd want to add a solenoid # PK5231201. The center pin on the solenoid...
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    What you will need to convert your 4-way to a 7-way so that you can power an electric jack would be the part # 37185. You will also need a length of 10 gauge wire # 10-1-1 (sold by the foot) and then a circuit breaker part # PK54540 to route the power wire from this connector to the positive side of your battery through the breaker. You would not be able to also use the power wire you used to install the 4-way you have on your vehicle. For a trailer side 7-way to install on your trailer...
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  • How to Install a 7-Way on a 2007 Toyota Tacoma with a Factory 4-Way Trailer Connector
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  • Parts Needed to Install a Trailer Brake Controller in a 2012 Dodge Ram 1500 Express
    Brake controllers are not vehicle specific so you can use the Curt Venturer # C74VV. If your 2012 Dodge Ram came with a factory 4- or 7-Way trailer connector then you would also need wiring harness # C51438. This harness will plug into a connector on the truck. The trucks connector is located under the dash, to the left of the steering column, taped to another harness near the emergency brake pedal. If the truck just has a 4-Way you will need to add a 7-Way using # 37185, about 20 feet...
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Info for this part was:

Employee Mike L
Expert Research:
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Employee Jameson C
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Employee Adam R
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Employee Tyler C
Written by:
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Employee Joshua S
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