AIR CIRCUIT BREAKERS - Electrical and Electronics Division

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�our breaking points per pole with double
break system helps faster quenching of arc.
Knife type contact system with self wipe
feature cleans the contact automatically
during every closing or opening operation.
Silver plated copper gives better current
carrying capacity.
Electrodynamic compensation:
The contact system is designed to generate
very high electrodynamic force to counteract
the repulsive force produced during short
circuit / fault condition. This result in
automatic increase in contact pressure
with increase in fault current.
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CONTACT SYSTEM
Innovative design of contact system ensures high electrical life :
Separate arcing and current carrying
zones. This ensures that current carrying
zone will remain unaffected during arcing.
This enhances the electrical life of the switch.
�ixed contacts are integral part of the
terminals. No joint between the terminal
and the fixed contact results into low watt
loss which results into less temperature
rise. �G offers one of the lowest temperature
rise in the terminals if connected properly.
Deion plates are provided for effective arc
quenching.
High contact pressure : better thermal
rating.
Robust and efficient mechanism provides greater reliability and safety to operator:
Positive break-forced opening of contacts:
In case of contact welding handle cannot be
taken to the O�� position without forcefully
opening the contacts. Ensures safety of the
operator by eliminating chances of wrong
indication.
Quick make and quick break mechanism:
The opening & closing of the contacts are
independent of the speed of actuation. The
contacts made or part almost instantly
independent of the speed of operation
Innovative design reduces the torque
requirement:
The torque required to close or open the
switch is considerably low.