Fuses & Fuse Accessories

Circuit Breakers vs. Fuses: Choosing the Right Circuit Protection for Your Application 

When comparing circuit breaker vs fuse options for a commercial vehicle, marine electrical system, RV power distribution panel, or work truck accessory installation, circuit protection is one of the most critical considerations Overcurrent conditions caused by short circuits, faulty equipment, or excessive loads can quickly damage wiring, components, and connected devices. Fortunately, both circuit breakers […]

Basic 12V Wiring Diagram Components and Symbols

Every wiring diagram—no matter how simple or complex—is built from a few core elements. Understanding these categories makes it much easier to break down and interpret any system. Once you can identify these six elements in a diagram, you can quickly understand how the system operates. Common Electrical Wiring Symbols (With Examples) Power Source (Battery) […]

What are Electrical Wiring Diagrams

Electrical wiring diagrams are the universal language of electrical systems. Whether you’re working on a vehicle, boat, trailer, piece of heavy equipment, or an off-grid setup, wiring diagrams provide a clear and standardized way to understand how everything connects. Instead of relying on lengthy written explanations, these diagrams use simple symbols to represent components like […]

12V Wiring Fundamentals Pt. 2

12V Circuit Protection for Automotive & Trailer Applications  Once your wiring fundamentals are in place from Pt 1, the next step is protecting your system from electrical and mechanical hazards. Proper 12V circuit protection, mechanical safeguards, and thoughtful design are essential to prevent overloads, short circuits, abrasion, moisture damage, and heat-related failures.  This guide covers […]

How To Test & Change A Fuse In A Vehicle

Some people may be surprised at the large amount of fuses that are found in a vehicle’s fuse box. These fuses help protect your vehicle as well as making sure every function of your car is working properly. In this video, we show how to test and change a fuse in a vehicle to keep your […]

Testing ATO fuse

How To Test A Fuse

Learn how to test a fuse in this video. To be sure that your fuse is working properly, the best traits to test are voltage and continuity. Del City uses a multimeter to test both of these traits on a variety of fuse types. If you find that your fuse isn’t working properly, check out […]

How To Replace A Fuse

Learn how to replace a fuse in this video. A blown fuse will cause your electrical project to not work and may indicate a wiring problem. We will show you how to replace multiple kinds of fuses including ATO/ATC, AGC, JCASE, MEGA, MIDI, and Marine. Enjoy and follow the step-by-step instructions to replace your fuses!

what happens when an AGC Fuse is blown

What Happens When You Blow A Fuse?

What Happens When You Blow A Fuse? Fuses are your first line of defense when it comes to protecting your electrical application. Once a fuse is blown, it cannot perform the protective functions that you need. Del City investigated further into what a fuse looks like during this process. We slowed it down so you […]