Apm fuse

Apm fuse DEFAULT

Fuses
Miniature Automotive Blade

APM-I  with LED

APM-I Automotive Blade Fuse
Fast Acting/Blade Mounting
A miniature size automotive blade fuse with LED  Indicator for easy open fuse indication. 
  
 Electrical Specifications
 2A-30A    32VDC  Design Standards
 
SAE   J2077
  
Time Characteristics
110%100hmin. hold time
135%750ms 30mmin. hold time max. hold time
200%150ms 5smin. hold time
max. hold time
350%80ms
250ms
min. hold time
max. hold time

 Amperage
--- (2, 3, 4, 5, 7.5, 10, 15, 20, 25, 30)A *
  *  see color chart at the top right portion of screen  

 Other Mini Automotive Blade Fuses
AmperageBody Color
2AGray
3AViolet
4APink
5ATan
7.5ABrown
10ARed
15ABlue
20AYellow
25AClear
30AGreen

 

Sours: https://www.optifuse.com/fuses-auto-blade-mini-apm-i.php

Fuses
Miniature Automotive Blade

APM

APM Automotive Blade Fuse
Fast Acting/Blade Mounting
A cost-effective miniature automotive fuse for use in automotive, battery and general DC applications.

 Electrical Specifications
 2A-35A    32VDC  Design Standards
 SAE   J2077
  
Time Characteristics
110%100hmin. hold time
135%750ms 1800smin. hold time
max. hold time
200%150ms 5smin. hold time
max. hold time
350%40ms 500msmin. hold time
max. hold time
600%20ms 100msmin. hold time
max. hold time

 Amperage
--- (2, 3, 4, 5, 7.5, 10, 15, 20, 25, 30, 35)A *
  *  see color chart at the top right portion of screen   

 Other Mini Automotive Blade Fuses 
AmperageBody Color
2AGray
3AViolet
4APink
5ATan
7.5ABrown
10ARed
15ABlue
20AYellow
25AClear
30AGreen
35ABlue Green

 

Sours: https://www.optifuse.com/fuses-auto-blade-mini-apm.php
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Fuse (automotive)

Class of fuses used to protect the wiring and electrical equipment for vehicles

Automotive fuses are a class of fuses used to protect the wiring and electrical equipment for vehicles. They are generally rated for circuits no higher than 32 volts direct current, but some types are rated for 42-volt electrical systems. They are occasionally used in non-automotive electrical products. Automotive fuses are typically housed inside one or more fuse boxes (also called an integrated power module (IPM)) within the vehicle, typically on one side of the engine compartment and/or under the dash near the steering wheel. Some fuses or circuit breakers may nonetheless be placed elsewhere, such as near the cabin fan or air bag controller. They also exist as circuit breakers that are resettable using a switch.[1]

There may be a fuse for ignition off draw (IOD), which controls the drawing of electric current in a vehicle while it is shut off; removing this fuse while the vehicle is shut off for more than a few weeks will prevent excessive depletion of the battery.

Blade type[edit]

Blade type fuses come in six physical sizes: Micro2, Micro3, low-profile (LP) Mini, Mini, Regular, Maxi

Blade fuses (also called spade or plug-in fuses), with a plastic body and two prongs that fit into sockets, are mostly used in automobiles.

Each fuse is printed with the rated current in amperes on the top.

These types of fuses come in six different physical dimensions:

  • Micro2.
  • Micro3.
  • LP-mini (APS), 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.
  • Mini (APM / ATM). The mini fuses were developed in the 1990s.
  • Regular (APR / ATC / ATO / ATS) blade-type fuses, also known as standard, were developed in 1976 as ATO by Littelfuse[2] for low voltage use in motor vehicles. Bussmann makes the ATC[3] 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.[4]
  • Maxi (APX), heavy-duty.

Mount[edit]

Blade type fuses can be mounted in:

  • Fuse blocks (made of porcelain, slate, or other refractory material). Fuse blocks offer a method of mounting several fuses together or large fuses separately .
  • In-line fuse holders, with two standards: IEC publication 257 1968 Amendment no. 2 to this publication dated January 1989 and UL-standard no. 512. They help to save space. An inline fuse is often seen in add-on electrical accessories, where the manufacturer does not know the electrical current limit of the circuit you are going to patch into. This offers sufficient protection for that individual accessory, without regard to any other devices that might share the same circuit.
  • Dual slot fuse holders let you turn one fuse slot into two (in some way, similar to a power strip, but for fuses).
  • Fuse clips. Fuse clips can be inserted into a printed circuit board.

Size groups[edit]

Blade sizeBlade groupDimensions L × W × HCommon ratings (maximum current)
Micro2APT, ATR9.1 × 3.8 × 15.3 mm5, 7.5, 10, 15, 20, 25, 30
Micro3ATL14.4 × 4.2 × 18.1 mm5, 7.5, 10, 15
LP-Mini
(low profile)
APS, ATT10.9 × 3.81 × 8.73 mm2, 3, 4, 5, 7.5, 10, 15, 20, 25, 30
MiniAPM, ATM10.9 × 3.6 × 16.3 mm2, 3, 4, 5, 7.5, 10, 15, 20, 25, 30
RegularAPR, ATC,[3] ATO,[2] ATS[5]19.1 × 5.1 × 18.5 mm0.5, 1, 2, 3, 4, 5, 7.5, 10, 15, 20, 25, 30, 35, 40
MaxiAPX29.2 × 8.5 × 34.3 mm20, 25, 30, 35, 40, 50, 60, 70, 80, 100, 120

Where space permits, a miniature circuit breaker is sometimes used to replace a blade-type fuse in the same fuse holder.

Blade fuses use a common coloring scheme for the Micro2, Micro3, low-profile (LP) Mini, Mini, and regular size fuses, and a partial color similarity with the maxi size fuses. The following table shows the commonly available fuses for each size group.

Mini, Regular, and Maxi Blade type fuses

Regular fuses (ATO) rated 0.5 A, 35 A and 40 A are not mentioned in the DIN standards,[6] but are available in some products from Littelfuse, among others.

Bosch type[edit]

Bosch type fuse (used in older cars)

Bosch type fuses (also known as continental, torpedo, European, or GBC type fuses) are used in old (often European) automobiles. The physical dimension of this type of fuse is 6×25 mm with conical ends. Bosch type fuses usually use the same color-coding for the rated current. The DIN standard is 72581/1.

Color coding[edit]

ColorCurrent rating
 Yellow5 A
 White8 A
 Red16 A
 Blue25 A
 Grey40 A

Lucas type[edit]

Lucas type fuses are used in old British-made or assembled automobiles. The physical length of the Lucas ceramic type of fuse is either 1 inch or 1.25 inch, with conical ends. Lucas glass tube fuses have straight ends. Lucas type fuses usually use the same color-coding for the rated current. Lucas fuses have three ratings; the continuous current they are designed to carry, the instantaneous current at which they will fuse, and the continuous current at which they will also fuse. The figure found on Lucas fuses is the continuous fusing current which is twice the continuous ampere rating that the system should be using; this can be a source of confusion when replacing Lucas fuses with non Lucas fuses. The Lucas 1/4" diameter glass tube fuse have a different length as compared to the standard US item. The Lucas 1/4" diameter glass tube fuse is 1 and 5/32" [≈29.4 mm] long, while the US standard 1/4" glass tube fuse is 1 and 1/4" [≈32.0 mm] long. However many Lucas fuse holders permit the longer US version to be installed easily.

Color coding[edit]

Color Continuous ampere (=rated current) Instantaneous fusing ampereContinuous fusing ampere
Blue 1.5 3.5 3
Yellow 2.25 5 4.5
Red on yellow 2.5 6 5
Green 3 7 6
Nut brown 4 10 8
Red on green 5 12 10
Green on black 5 12 10
Red on brown 6 14 12
Light brown 7.5 18 15
Pink 12.5 30 25
White 17.5 40 35
Purple on yellow 25 60 50
Yellow on red 30 75 60

Glass tube type[edit]

North-American built automobiles up to at least 1986 had electrical systems protected by cylindrical glass cartridge fuses rated 32 volts DC and current ratings from 4 amperes to 30 amperes. These are known as "SFE" fuses, as they were designed by the Society of Fuse Engineers to prevent the insertion of a grossly inadequate or unsafe fuse into the vehicle's fuse panel.[7][8] These SFE fuses all have a 1⁄4 inch diameter, and the length varies according to the rating of the fuse.

  • A 4 A SFE 4 fuse is 5⁄8 inch long (the same dimension as an AGA fuse of any rating),
  • a 6 A SFE 6 fuse is 3⁄4 inch long,
  • a 7.5 A SFE 7.5 fuse is 7⁄8 inch long (same as an AGW fuse of any rating),
  • a 9 A SFE 9 fuse is 7⁄8 inch long (same as an AGW fuse of any rating),
  • a 14 A SFE 14 fuse is 11⁄16 inch long,
  • a 20 A SFE 20 fuse is 11⁄4 inch long (same as an AGC fuse of any rating), and
  • a 30 A SFE 30 fuse is 17⁄16 inches long.[7]

There are a number of lookalike fuses which can easily be confused with these. In general this type of fuse will have an "AG" label of some kind, which originally stood for "Automobile Glass".[9] There are at least seven different sizes of fuses with a 1/4 inch diameter. The fuses listed are the most common for the size, which is always a fast-acting fuse:

  • 1AG size, type AGA, 1 A to 30 A, 1/4 inch (6.3mm) diameter by 5⁄8 inch (15.9mm) long[7]
  • 2AG size, type AGB, 0.177" (4.5mm) diameter by 0.588" (14.9mm) long (frequently replaced with 5mm diameter by 15mm long international size fuse (aka 5 x 15mm - now more readily available)[10]
  • 3AG size, type AGC, 0.125 A to 50 A, 1/4 inch diameter (6.3mm) by 11⁄4 inch (31.8mm) long[11]
  • 4AG size, type AGS, 9⁄32 inch (7.1mm) diameter by 11⁄4 inch (31.8mm) long[10]
  • 5AG size, type AGU, 1 A to 60 A, 13⁄32 inch (10.3mm) diameter by 11⁄2 inch (38.1mm) long.[7] Also called "Midget fuses."[11]
  • 7AG size, type AGW, 1 A to 30 A, 1/4 inch diameter (6.3mm) by 7⁄8 inch (22.2mm) long[7]
  • 8AG size, type AGX, 1 A to 30 A, 1/4 inch (6.3mm) diameter by 1 inch (25.4mm) long[11]
  • 9AG size, type AGY, 50 A, 1/4 inch (6.3mm) diameter by 17⁄16 inch (36.5mm) long[7]
  • UK size, type UK, 35 A to 50 A, 1/4 inch (6.3mm) diameter by 11⁄4 inch (31.8mm) long[7]

These and other fuses are still being manufactured for many applications, including for AC circuits and DC uses. Some are time delayed, slow reacting, or have leads for terminals used in circuits without a fuse holder.[11][8] Many of the fuse dimensions and characteristics are published by the Society of Automotive Engineers as Standard SAE J 554.

Limiter type[edit]

Limiter fuses consist of a metal strip for currents over 10 amperes. Also referred to as Current Limiting Fuses, they feature an internal fuse element that melts when current passing through the fuse element is within the specified current limiting range of the fuse. As the fuse element melts, it creates a high resistance to reduce the magnitude and duration of the current flowing through the fuse to protect the electrical circuit and connected equipment.[12] Frequently, these are used in close proximity to starter battery fuse boxes. They are used also in electric vehicles, e.g., in forklift trucks. Because strip fuses require the use of tools for replacement they are therefore legally considered non-serviceable components for end-users.[citation needed]

See also[edit]

References[edit]

External links[edit]

Sours: https://en.wikipedia.org/wiki/Fuse_(automotive)
PROBLEM SOLVING AIR PRODUCTION MODULATOR (APM) ON VOLVO FMX 440 - VOLVO TRUCK

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Fuse apm

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Piggyback Fuse Holders SAFE OR NOT? A Piggyback bench test - by VOG (VegOilGuy)

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