Add-A-Fuse & Fuse Taps: Adding a New Circuit

Without disrupting existing circuits but simply adding on to them, Add-A-Fuses turn one fuse slot of your fuse block into 2-3 slots to protect additional accessories. You gain more circuits, and both the new and existing circuits are fully protected by separate fuses.

Add-A-Fuses are available for our MICRO3, MICRO2, Low-Profile Mini, Mini and Regular (ATO/ATC) blade style fuses. Some models have left hand exits and others offer three slots for two additional circuits. All models have a max combined current for all circuits of 30A or 40A, depending on the part. Each come standard with a 16AWG wire.

Instead of creating an entirely separate circuit for a second fuse, Fuse Taps allow you to add an additional device using one fuse to protect two circuits. This is not always advised, because if the tapped fuse opens, both devices will be cut off from power until the Fuse Tap is replaced.

Fuse Taps are available for our MICRO2, Low-Profile Mini, Mini and Regular (ATO/ATC) blade style fuses They come in three amperages — 10A, 15A, and 20A — and the output is determined by the wire gauge – 10A for 16AWG and 5A for 18WG, regardless of the actual fuse amperage.

To help you select the right rating for your specific application, see our Fuse Selection Guide for complete context.

To ensure circuit protection for all accessories, install Fuse Taps and Add-A-Fuses with their wire on the opposite side of the power input. If installed backwards, a Fuse Tap offers no circuit protection for the additional accessory and an Add-a-Fuse will protect the first fuse only.