Blade Fuses: Difference between revisions

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'''Blade Fuses'''
'''Blade Fuses''' are a form factor of fuses used to protect the wiring and electrical equipment for vehicles.
 
'''Blade fuses''' come in six different physical dimensions:
 
* [[Micro2 Blade Fuses]]
* [[Micro3 Blade Fuses]]
* [[LP-Mini Blade Fuses|LP-Mini (APS) Blade Fuses]], also known as ''low-profile mini''. Unofficially, the "low-profile mini" fuse is sometimes incorrectly called "Micro" since the term means smaller than mini, but recently fuses using the Micro name have been released (Micro2 and Micro3).
* [[Mini Blade Fuses|Mini (APM / ATM) Blade Fuses]]. The mini fuses were developed in the 1990s.
* [[Regular Blade Fuses|Regular (APR / ATC / ATO / ATS) Blade Fuses]], also known as ''standard'', were developed in 1976 as ATO by [[Littelfuse]] for low voltage use in motor vehicles. [[Eaton|Bussmann]] makes the ATC that also complies with the same ISO 8820-3 and SAE J1284 standards. [[OptiFuse]], a newer entrant in the market, makes regular (APR / ATC / ATO) fuses that meet the same standards.
* [[Maxi Blade Fuses|Maxi (APX) Blade Fuses]], heavy-duty.
[[File:Blade Fuse types.png|none|thumb|800x800px|Most common types of blade fuses.]]
 
=== Fuse sizes, groups, ratings ===
{| class="wikitable"
!Blade size
!Blade group
!Dimensions L × W × H
!Common ratings (maximum current)
|-
|Micro2
|APT, ATR
|9.1 × 3.8 × 15.3 mm
|5, 7.5, 10, 15, 20, 25, 30
|-
|Micro3
|ATL
|14.4 × 4.2 × 18.1 mm
|5, 7.5, 10, 15
|-
|LP-Mini
(low profile)
|APS, ATT
|10.9 × 3.81 × 8.73 mm
|2, 3, 4, 5, 7.5, 10, 15, 20, 25, 30
|-
|Mini
|APM, ATM
|10.9 × 3.6 × 16.3 mm
|2, 3, 4, 5, 7.5, 10, 15, 20, 25, 30
|-
|Regular
|APR, ATC, ATO, ATS
|19.1 × 5.1 × 18.5 mm
|0.5, 1, 2, 3, 4, 5, 7.5, 10, 15, 20, 25, 30, 35, 40
|-
|Maxi
|APX
|29.2 × 8.5 × 34.3 mm
|20, 25, 30, 35, 40, 50, 60, 70, 80, 100, 120
|}
 
=== Fuse Color Codes and offerings by size ===
{| class="wikitable"
!Color
!Current rating
!Micro2
!Micro3
!LP
Mini
!Mini
!Reg
!Maxi
|-
| Dark blue
|0.5 A
|
|
|
|
|✓
|
|-
| Black
|1 A
|
|
|
|
|✓
|
|-
| Grey
|2 A
|
|
|✓
|✓
|✓
|
|-
| Violet
|3 A
|
|
|✓
|✓
|✓
|
|-
| Pink
|4 A
|
|
|✓
|✓
|✓
|
|-
| Tan
|5 A
|✓
|✓
|✓
|✓
|✓
|
|-
| Brown
|7.5 A
|✓
|✓
|✓
|✓
|✓
|
|-
| Red
|10 A
|✓
|✓
|✓
|✓
|✓
|
|-
| Blue
|15 A
|✓
|✓
|✓
|✓
|✓
|✓
|-
| Yellow
|20 A
|✓
|
|✓
|✓
|✓
|✓
|-
| Transparent
|25 A
|✓
|
|✓
|✓
|✓
| Grey
|-
| Green
|30 A
|✓
|
|✓
|✓
|✓
|✓
|-
| Blue-green
|35 A
|
|
|✓
|✓
|✓
| Brown
|-
| Orange
|40 A
|
|
|✓
|✓
|✓
|✓
|-
| Red
|50 A
|
|
|
|
|
|✓
|-
| Blue
|60 A
|
|
|
|
|
|✓
|-
| Amber/tan
|70 A
|
|
|
|
|
|✓
|-
| Transparent
|80 A
|
|
|
|
|
|✓
|-
| Violet
|100 A
|
|
|
|
|
|✓
|-
| Purple
|120 A
|
|
|
|
|
|✓
|}
[[Category:Fuses]]
[[Category:Fuses]]

Latest revision as of 14:21, 15 December 2025

Blade Fuses are a form factor of fuses used to protect the wiring and electrical equipment for vehicles.

Blade fuses come in six different physical dimensions:

Most common types of blade fuses.

Fuse sizes, groups, ratings

Blade size Blade group Dimensions L × W × H Common ratings (maximum current)
Micro2 APT, ATR 9.1 × 3.8 × 15.3 mm 5, 7.5, 10, 15, 20, 25, 30
Micro3 ATL 14.4 × 4.2 × 18.1 mm 5, 7.5, 10, 15
LP-Mini

(low profile)

APS, ATT 10.9 × 3.81 × 8.73 mm 2, 3, 4, 5, 7.5, 10, 15, 20, 25, 30
Mini APM, ATM 10.9 × 3.6 × 16.3 mm 2, 3, 4, 5, 7.5, 10, 15, 20, 25, 30
Regular APR, ATC, ATO, ATS 19.1 × 5.1 × 18.5 mm 0.5, 1, 2, 3, 4, 5, 7.5, 10, 15, 20, 25, 30, 35, 40
Maxi APX 29.2 × 8.5 × 34.3 mm 20, 25, 30, 35, 40, 50, 60, 70, 80, 100, 120

Fuse Color Codes and offerings by size

Color Current rating Micro2 Micro3 LP

Mini

Mini Reg Maxi
 Dark blue 0.5 A ✓
 Black 1 A ✓
 Grey 2 A ✓ ✓ ✓
 Violet 3 A ✓ ✓ ✓
 Pink 4 A ✓ ✓ ✓
 Tan 5 A ✓ ✓ ✓ ✓ ✓
 Brown 7.5 A ✓ ✓ ✓ ✓ ✓
 Red 10 A ✓ ✓ ✓ ✓ ✓
 Blue 15 A ✓ ✓ ✓ ✓ ✓ ✓
 Yellow 20 A ✓ ✓ ✓ ✓ ✓
 Transparent 25 A ✓ ✓ ✓ ✓  Grey
 Green 30 A ✓ ✓ ✓ ✓ ✓
 Blue-green 35 A ✓ ✓ ✓  Brown
 Orange 40 A ✓ ✓ ✓ ✓
 Red 50 A ✓
 Blue 60 A ✓
 Amber/tan 70 A ✓
 Transparent 80 A ✓
 Violet 100 A ✓
 Purple 120 A ✓
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