GE
relays IC2820A100, IC2820A101 and IC2820A200 are
used for general purpose, under-voltage protection,
plugging and similar applications. They are available
in heavy-duty models for severe service or where
more than four circuits are required.
GE
relays IC2820A100A and IC2820A100B are used for
motor acceleration, sequence interlocking and
other applications requiring delayed opening or
closing of control circuits.
GE
relays IC2820E500 are used for the protection
of DC motors and driven machines against suddenly
applied high overloads. An instantaneous overload
relay is normally used on cranes, hoists, and
on other applications in which heavy overloads
are encountered.
GE
relays IC2820D300 are used to protect DC shunt
or compound-wound motors against the loss of field
excitation. The coil is connected in series with
the motor field. When excitation is lost, the
relay drops out and opens the motor line contactor.
GE
relays IC2820A102 are fast-acting hand-reset relays
designed to interrupt control power of a line
contactor on sensing a ground current in the lines
to an AC motor load or other AC equipment.
GE
IC2820C100 field-applying relays work in conjunction
with an auxiliary relay to provide a time delay
for closing the field contactor when the proper
DC voltage is available to pull the machine into
step.
