How Does Curt Trailer Wiring Harness # C56190KIT Only have 10 Amp Fuse
Updated 10/30/2025 | Published 02/17/2025 >
Question:
How does this kit support 7.5A for Tail/Running lights + 7.5A for Turn-Signal/Brake per side if it is also limited by a 10A fuse for the entire circuit? 6A on running lights + 6A on brake lights 3A per side would blow a 10A fuse, right?
asked by: John
0
Expert Reply:
Hey John, so when the turn signal or stoplight circuit is active at same time as running light circuit the running light circuit shuts off and does not combine the amperage draw of both circuits.
So the max this would draw is 8.4 amps when the brake lights are on.
expert reply by:
Jameson C
0
Product Page this Question was Asked From
Curt Powered Tail Light Converter w/ 4-Way Flat Trailer Connector and Install Kit
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- Powered Converter
- Universal Fit
- 4 Flat
- Plug and Lead
- Splice-In
- CURT
more information >
Featured Help Information
Instructions
Continue Researching
- Q&A: Recommended Brake Controller and 7 Way Wiring for a 2023 Ram ProMaster 1500 Without Tow Package
- Article: Trailer Wiring Diagrams
- Q&A: Which Hitch is Better for a 2021 BMW X5 xdrive40i? Stealth Hitch or Oris?
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: How Difficult IS The Curt Trailer Hitch Receiver # C12114 To Install On My 2012 Lexus LS 460?
- Q&A: Availability of Trailer Hitch for 2007 Lexus LS460 to Transport Bikes
- Q&A: Does The Stealth Hitches Hidden Trailer Hitch Receiver w/ Towing Kit SH32TR Include The Wiring?
- Q&A: Comparing Curt and Draw-Tite Trailer Hitch Receivers For a 2017 BMW X5
- Q&A: What Trailer Hitch Fits a 2019-2021 BMW X5 with the M Sport Package?
- Article: Routing the Power Wire for a Trailer Wiring Harness
- Article: Brake Controller Installation: Starting from Scratch
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Article: Best Vehicles to Flat Tow Behind an RV


Jameson C.
10/30/2025
Hey John, did that explanation about how the running light circuit shuts off when the brake or turn signal is active clear things up for you? Knowing how it worked in practice could help others understand the current draw on this converter.