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Automotive Fuses and Car Fuses
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Automotive Fuses
Welcome to PCS Cables -
we are a specialist distributor of cables to the automotive and marine
industries and now also supply direct to the public and trade through
out online store.
You can purchase automotive fuses for a wide range of industries
including the automotive, electrical, electronic, marine, and harness
manufacturing. We have particularly keen prices for automotive fuses and associated accessories.
In addition to a wide
range of standard cables we also customise cables using our six
state-of-the-art machines to create virtually any trace colour to meet
necessary approvals both national and international.
Our high stock holding and
ability to customise means that virtually any order can be fulfilled
with the absolute minimum of delay, indeed the vast majority of orders
are delivered within 24 hours, or same day if required using our own
fleet of vehicles or reliable nationwide carriers.
It has always been our
belief that in order to retain your custom we have to provide the
correct product at the right price on time, in a fiercely competetive
market. Here at PCS Cables and Connectors we do just that. |
CLICK HERE
to go straight to our automotive fuses section in our new online shop.
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Mission:
To provide quality products, well presented with integrity and unparalleled
service.
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PCS CABLES & CONNECTORS
14-16 Kingfisher Park
Industrial Estate, Three Cross Road, West Moors. Dorset BH21 6US
Tel. 01202 871924 Fax. 01202 895661
In electronics and electrical engineering a fuse,
short for 'fusible link', is a type of overcurrent protection device. Its
essential component is a metal wire or strip that melts when too much current
flows. When the metal strip melts, it opens the circuit of which it is a part,
and so protects the circuit from excessive current.
A practical fuse was one of the essential features of Edison's electrical power
distribution system. An early fuse was said to have successfully protected an
Edison installation from tampering by a rival gas-lighting concern.
Fuses (and other overcurrent devices) are an essential part of a power
distribution system to prevent fire or damage. When too much current flows
through a wire, it may overheat and be damaged, or even start a fire. Wiring
regulations give the maximum rating of a fuse for protection of a particular
circuit. Local authorities will incorporate national wiring regulations as part
of law. Fuses are selected to allow passage of normal currents, but to quickly
interrupt a short circuit or overload condition.
The speed at which a fuse operates depends on how
much current flows through it. Manufacturers of fuses plot a time-current
characteristic curve, which shows the time required to melt the fuse and the
time required to clear the circuit for any given level of overload current.
Where several fuses are connected in series at the various levels of a power
distribution system, it is very desireable to clear only the fuse (or other
overcurrent device) electrically closest to the fault. This process is called
"coordination" and may require the time-current characteristics of two fuses to
be plotted on a common current basis. Fuses are then selected so that the minor,
branch, fuse clears its circuit well before the supplying, major, fuse starts to
melt. In this way only the faulty circuits are interrupted and minimal
disturbance occurs to other circuits fed by the supplying fuse.
Where the fuses in a system are of similar types, simple rule-of-thumb ratios
between ratings of the fuse closest to the load and the next fuse towards the
source can be used.
Fuses are often characterized as "fast-blow" or "slow-blow" or "time-delay",
according to the time they take to respond to an overcurrent condition. The
selection of the characteristic depends on what equipment is being protected.
Semiconductor devices may need a fast or ultrafast fuse for protection since
semiconductors may have little capacity to withstand even a momentary overload.
Fuses applied on motor circuits may have a time-delay characteristic, since the
surge of current required at motor start soon decreases and is harmless to
wiring and the motor.