Polymeric Resettable Fuse Device
a novel solution for circuit protection
from OVER-CURRENT
The Polymeric PTC device replaces “one-time use” fuses.
Instead of the traditional fuse wire,
the PPTC fuse uses a patented polymer based technology
which allows it to be reset thousands of times .
PRODUCT INTRODUCTION
Enerdyne
www.enerdyne.in
Polymeric Resettable Fuse Device
When connected in series to a circuit, the PPTC resettable device remains at
extremely low resistance and allows the electrical current to flow through it
without any restriction.
When over current occurs, the devices reacts to the heat generated by excess
current. On reaching the specified “trip current” level, it changes from low
resistance to a very high resistance thereby limiting the fault current to a very
small value (nearly to “open state”).
Once normal current is restored, the device resets back to its normal state of low
resistance and allows the current to flow through once again.
Enerdyne
www.enerdyne.in
Polymeric Resettable Fuse Device
HOW IT WORKS
.
FUZETEC™ resettable fuses are made of patented novel
PPTC material in thin chip form where conductive particles
are dispersed in a polymer that has a crystalline structure. At
normal operating conditions there are numerous chains
forming conductive paths throughout the PPTC material.
Under fault conditions (tripped state), excessive current flows
through the PPTC device and the PPTC material heats up.
This makes the polymer matrix’s morphology change from
crystalline to amorphous. Under these conditions the
conductive particles move apart from each other, most of
them no longer conduct current and the resistance of the
device increases sharply. Upon fault current being removed,
the resettable fuse is reset and allows the current through
the circuit again.
Enerdyne
www.enerdyne.in
Polymeric Resettable Fuse Device
APPLICATIONS
Switch Mode Power Supplies & Transformers
Automotive Motors & Wire Harness
Car Security Alarms
ADSL Modems, Set Top Box, MDF
Battery Packs & Battery Charges
Ballast
Audio Speakers
Computer Motherboards & Peripherals
Test & Measuring Instruments
Enerdyne
www.enerdyne.in
Polymeric Resettable Fuse Device
from
FUZETEC TECHNOLOGY CO. LTD.
World’s 3rd largest manufacturer of radial PPTC fuses
Patented technology from Emerson
Research, Development & Technology innovator
Enerdyne
www.enerdyne.in
Polymeric Resettable Fuse Device
FUZETEC TECHNOLOGY CO. LTD.
is
exclusively represented in India by
ENERDYNE DEVICES PVT. LTD.
large inventory in local warehouse
technical & application support
leading market share in India
delighted to serve the smallest orders
Enerdyne
www.enerdyne.in