There are many different fuses. We listed some of them below. The list does not show all fuses we carry. If you can`t identify the fuse you are looking for,....just give us a short description - enquiry page.

Electronic-,PC Board-,Small Dimension and Miniature Fuses:

- Fuses for the use on PC boards
- Surface Mount Chip Fuses
- Subminiature Fuses

Cylindrical fuses:

- 5 x 15 mm 8 x 40 mm 10 x 85 mm
- 5 x 20 mm 8 x 50 mm 14 x 51 mm
- 5 x 25 mm 8 x 85 mm 22 x 58 mm
- 5 x 30 mm 8 x 120 mm
- 6 x 25 mm 8 x 150 mm
- 6 x 32 mm 9 x 36 mm
- 6 x 43 mm 10 x 38 mm

European Style Fuses:

- DIN Standard Fuses, NH fuses - size 00,0,1,2,3,4,4a
- German D-type, Bottle fuses
- British Standard Fuses
- French Standard Fuses
- Most of above fuses are also available as high speed types for the protection of semiconductor devices.

Canadian Style Fuses:

High Voltage Fuses:

Fuses manufactured in Japan,China or other countries. High Voltage fuses manufactured by Cooper Bussmann:
ex Brush types (British types), B&S types (British types), HV fuses manufactured by DRIESCHER WEGBERG or JEAN MULLER, EFEN, SIBA, ETI, MESA or others.

Fuse accessories:

fuse bases, holders,carriers,disconnectors,
isolators,fuse switches, micro switches, indicators or strikers.

Fuse Glossary

Ampere

The measurement of intensity of rate of flow of electrons in an electric circuit.Am ampere is the amount of current that will flow through a resistance of one ohm under a pressure of one volt.

Ampere Rating

The current carrying capacity of a fuse. When a fuse is subjected to a current above its ampere rating, it will open the circuit after a predetermined period of time.

Ampered Squared Seconds (ixixt)

The measurement of heat energy developed within a circuit duting the fuse`s clearing. It can be expressed as melting-ixixt,arcing-ixixt,or the sum of them as clearing-ixixt."i" stands for effective let-through current (RMS),which is squared, and "t" stands for time of opening, in seconds.

Arching Time

The amount of time from the instant the fuse link has melted until the overcurrent is interrupted, or cleared.

Braking Capacity

The rating which defines the fuse`s ability to safely interrupt and clear short circuits. This rating is much greater than the ampere rating of a fuse.The NEC defines interrupting rating as "The highest current at rated voltage that an overcurrent protective device is intended to interrupt under standard test conditions."

Clearing Time

The total time during the beginning of the overcurrent and the final opening of the circuit at rated voltage by an overcurrent protective device. Clearing time is the total of the melting time and the arcing time.

Current Limitation

A fuse operation relating to short circuits only. When a fuse operates in its current limiting range, it will clear a short circuit in less than 1/2 cycle. Also, it will limit the instantaneous peak let-thru current to a value substantially less than that obtainable in the same circuit if that fuse were replaced with a solid conductor
of equal impedance.

Fast Acting Fuse

A fuse which opens on overload and short circuits very quickly.This type of fuse is not designed to withstand temporary overload currents associated with some electrical loads.

High Speed Fuses

Fuses with no intentional time-delay in the overload range and designed to open as quickly as possible in the short circuit range. These fuses are often used to protect solid state devices.

INTERRUPTING RATING see..BRAKING CAPACITY

Melting Time

The amount of time required to melt the fuse. Link during a specified overcurrent.(See Arcing Time and Clearing Time).

OHM

The unit of measure for electric resistance. An ohm is the amount of resistance that will allow one ampere to flow under a pressure of one volt.

OHM`s LAW

The relationship between voltage, current, and resistance, expressed by the equation E=IR, where E is the voltage in volts,I is the current in apmperes, and R is the resistance in ohms.

Overcurrent

A condition which exists on an electrical circuit when the normal load current is exceeded. Overcurrents take on two seperate characteristics--overloads and short circuits.

Overload

Can be classified as an overcurrent which exceeds the normal full load current of a circuit. The current does not leave the normal current carrying path of the circuit--that is, it flows from the source, through the conductors,
through the load, back through the conductors, to the source again.

Peak Let-Thru Current, IP

The instantaneous value of peak current letthru by a current limiting fuse,when it operates in its current limiting range.

Resistive Load

An electrical which is characteristic of not having any significant inrush current. When a resistive load is nergized, the current rises instantly to its staedy state value, without first rising to a higher value.

R.M.S. Current

The R.M.S.(root-mean-square) value of any periodic current is equal to the value of the direct current which, flowing through a resistance, produces the same heating effect in the resistance as the periodic current does.

Short Circuit

An overcurrent which exceeds the normal full load current of a circuit by a factor many times (tens,hundreds,or thousands greater). The overcurrent also leaves the normal current carrying path of the circuit--it takes a "short
cut" around the load and back to the source.

Time-Delay-Fuse

A fuse with a built in delay that allows temporary and harmless inrush currents to pass without opening, but is so designed to open on sustained overloads and short circuits.

Voltage Rating

The maximum open circuit voltage in which a fuse can be used, yet safely interrupt an overcurrent. Exceeding the voltage rating of a fuse impairs its ability to clear an overload or short circuit safely.

LETTER CODE :

- FF = Super quick acting
- F = Quick acting
- M = Medium time lag
- T = Time lag
- TT = Super time lag