Automotive › Blade fuses

Blade Fuses (ATO / ATC / Mini / Maxi / Micro)

Manufacturer-direct automotive blade fuses in all six formats — Micro2, Micro3, Low-Profile Mini, Mini, Standard ATO/ATC and Maxi — colour-coded to rating, 32 V and 58 V, made to ISO 8820 / SAE J1284, from sample to volume.

Current: 1–100 AVoltage: 32 V / 58 V DCStandard: ISO 8820 · SAE J1284

Range

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Product FormatCurrentVoltageColour code Datasheet
Micro2 Blade Fuse TS-MC2 Micro2 (APT)5–30 A32 VPer rating
Micro3 Blade Fuse TS-MC3 Micro3 (ATL)5–15 A32 VPer rating
Low-Profile Mini Blade Fuse TS-LPM LP Mini (APS)2–30 A32 VPer rating
Mini Blade Fuse TS-MIN Mini (APM)2–30 A32 VPer rating
Standard ATO/ATC Blade Fuse TS-ATC Standard (ATO/ATC)1–40 A32 VPer rating
Standard Time-Delay Blade Fuse TS-ATC-T Standard (ATO/ATC)5–30 A32 VPer rating
Maxi Blade Fuse TS-MAX Maxi (APX)20–100 A32 VPer rating
Mini Blade Fuse (58 V) TS-MIN-58 Mini (APM)5–30 A58 VPer rating

Tenso manufactures the full range of automotive blade fuses — the standard, drop-in auto blade fuse used across vehicle, marine and powersports circuits. The range covers all six common formats, colour-coded to rating, rated for 32 V and 58 V systems, made to ISO 8820 / SAE J1284, with optional blown-fuse indicator versions and fast-acting or time-delay characteristics. Sized to protect the wiring rather than the load, a blade fuse opens before the harness can overheat.

Blade fuse formats — all six

FormatQuick IDTypical amps
Micro2 (APT)~9 mm, 2 blades, tall/thin5–30 A
Micro3 (ATL)3 blades (dual-circuit)5–15 A
Low-Profile Mini (APS)short body, 2 blades2–30 A
Mini (APM/ATM)~11 mm, 2 blades2–30 A
Standard (ATO/ATC)~19 mm, the classic car fuse1–40 A
Maxi (APX)~29 mm, high-current feeds20–100 A

Voltage: rated 32 V DC for 12 V / 24 V systems, and 58 V for 48 V mild-hybrid systems. Dimensions and ranges are typical — confirm exact ratings against the datasheet.

How to choose

  • Amperage — sized to the wire. Pick a rating above the circuit’s normal load but at or below the wiring’s safe current, so the fuse protects the harness.
  • Format. Match the format to the holder or fuse box.
  • Voltage. 32 V covers 12 V and 24 V circuits; use 58 V for 48 V mild-hybrid systems.
  • Response. Standard blade fuses are fast-acting; time-delay versions suit high-inrush circuits.

Don’t fix a blown fuse with a bigger one. A blade fuse protects the wiring. Fitting a fuse larger than the circuit’s wire is rated for removes that protection and is a fire risk — find out why it blew first.

Variants and ratings are indicative; confirm against the datasheet and your circuit’s wire gauge, voltage and ambient before selection.

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FAQ

Blade Fuses (ATO / ATC / Mini / Maxi / Micro) — questions buyers ask

What are the types of blade fuse?

Six common formats: Micro2, Micro3, Low-Profile Mini, Mini, Standard (ATO/ATC) and Maxi — differing in size, number of blades and amp range.

What's the difference between ATO and ATC?

Same standard-blade footprint and interchangeable; ATO has an open (exposed) element, ATC a closed (enclosed) one.

What do the blade fuse colours mean?

Each rating has a standard ISO 8820 / SAE J1284 colour — 10 A red, 15 A blue, 20 A yellow, 30 A green, and so on — but always confirm by the number printed on the fuse.

Can I fit a higher-amp blade fuse to stop it blowing?

No. The fuse protects the wiring, so a fuse above the wire's rating is a fire risk. A repeated blow means a fault or an under-rated circuit — diagnose it first.

What voltage are blade fuses?

Most are rated 32 V DC for 12 V / 24 V systems; 58 V versions cover 48 V mild-hybrid systems.