Set of mini (ATM/APM) blade fuses in the full colour range 3A to 30A. Inferred from product family, not visually confirmed this run.

Mini blade fuse. Inferred from product design, not visually confirmed this run.

Elevate Automotive

Mini Blade Fuses — 3A to 30A

KTBFM3

Mini-format (ATM/APM) automotive blade fuses in colour-coded amperages from 3A to 30A. Up to 32V DC, fast-acting, the format most modern vehicles use in 4WDs, caravans and boats.

$0.60

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Universal fitmentMini (ATM/APM) blade fuse. Fits any 12V or 24V DC automotive or marine circuit with a mini-format fuse socket.

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Mini-format automotive blade fuses in every amperage from 3A through to 30A. The compact ATM/APM shape most modern vehicles use in the OEM fuse box (roughly half the size of the older standard blade), colour-coded to the SAE convention so the rating is legible on the fuse body.

Sold individually so you can replace a single blown fuse rather than buying a full kit. For a starter set covering standard, mini and low-profile-mini fuses in one purchase, see the 250-piece assortment below.

Size guide

Every variant is the same mini-format blade fuse (approximately 10.9mm wide, 3.8mm thick, 16mm tall). Pick the amperage by matching the blown fuse or by sizing to the smallest cable in the circuit.

Amperage	Colour	Typical cable	Common uses
3A	Violet	0.5mm	Instrument sensors, low-current signal
5A	Tan	0.5mm	Dash lighting, LED strips
7.5A	Brown	0.75mm	Interior fans, small pumps
10A	Red	1mm	Aux sockets, radio feeds, small LED bars
15A	Blue	1.5mm	Reverse cameras, rear worklights, USB banks
20A	Yellow	2mm	Fridge circuits, single driving light
25A	Clear	2.5mm	Heavier accessory branches
30A	Green	3mm	Fuse-block trunk feeds, compressor circuits

Above 30A move to Maxi blade or MIDI/MEGA cartridge, not a mini blade.

Related in our range

Assorted Blade Fuse Kit — 250 Pieces (Standard, Mini, Low-Profile Mini)

$65.00

Standard Blade Fuses — 3A to 30A

$0.90

Low Profile Mini Blade Fuses — 10A to 30A

$1.00

SAE colour codes — rating read at a glance
Fast-acting — clears a fault before wiring melts
OEM fit — the format most modern vehicles use
32V DC ceiling — covers 12V and 24V systems

Format: Mini blade fuse (ATM/APM)

Amperage range: 3A, 5A, 7.5A, 10A, 15A, 20A, 25A, 30A

Voltage rating: Up to 32V DC

Response: Fast-acting

Colour-coded by amperage per SAE convention

Body: Automotive-grade thermoplastic

Mini (ATM/APM) blade fuse. Fits any 12V or 24V DC automotive or marine circuit with a mini-format fuse socket.

12V and 24V DC systems

48V DC systems (needs a 58V-rated fuse)

240V AC mains, never suitable for household or mains circuits

Standard-format sockets, mini fuses are physically smaller and will not fit

Q: What does mini blade mean?
A smaller version of the classic automotive blade fuse. Roughly 10.9mm wide, and the format most car manufacturers moved to from the 1990s onwards so more circuits could fit in a smaller fuse box. Also called ATM or APM.

Q: Will a mini blade fit in a standard-blade holder?
No. Mini and standard blade fuses use different socket sizes. If your fuse holder or block is standard-size (about 19mm wide slots), you need standard blade fuses instead.

Q: What do the colours mean?
Standard SAE colours: violet 3A, tan 5A, brown 7.5A, red 10A, blue 15A, yellow 20A, clear 25A, green 30A. Same coding as the larger standard blades, just on a smaller body.

Q: Which amperage do I need?
Match the fuse you are replacing (the rating is printed on top). For a new circuit, size the fuse to the smallest cable in the run so the fuse clears before the cable melts.

Q: What does fast-acting mean?
The fuse opens the circuit within milliseconds of the current exceeding its rating. Fast-acting is what you want for wiring protection. Slow-blow (time-delay) fuses are a separate class for motor loads with a large inrush spike, and are not what these are.

Q: Can I fit a bigger fuse if this one keeps blowing?
No. A repeatedly blown fuse means either the load exceeds the cable rating or there is a short somewhere. A larger fuse hides the fault long enough for the cable to overheat and start a fire. Find the fault, fix it, then match the fuse to the cable.

Q: Will these work in a caravan 240V mains circuit?
No. Mini blade fuses are rated to 32V DC only, and must never be used on 240V AC. Mains circuits use MCBs or RCBOs in a switchboard, installed by a licensed electrician.

Q: Are these reusable?
No. Once the fusible element inside has melted, replace it with a new fuse of the same rating.

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