EF3RTDK EATON CUTLER HAMMER, EF3RTDK Datasheet - Page 63
EF3RTDK
Manufacturer Part Number
EF3RTDK
Description
Endcap Kit
Manufacturer
EATON CUTLER HAMMER
Datasheet
1.EHMVD06B.pdf
(276 pages)
Specifications of EF3RTDK
For Use With
EG Frame Series G Circuit Breakers
- Current page: 63 of 276
- Download datasheet (5Mb)
November 2008
Special Features and
Accessories
Internal Accessories
Alarm Lockout
The alarm switches operate when
the circuit breaker is tripped by a short
circuit or overcurrent, but also when
it is tripped by a shunt trip or under-
voltage release.
Auxiliary Switches
Auxiliary switches are used for
signaling and control purposes.
The various functions of the auxiliary
switches (changeover) are shown in
Figure 12-9.
Shunt Trips
The shunt trip is used for remote
tripping.
The coil of the shunt trip is rated only
for short-time operation.
It is not permissible with the circuit
breaker open to apply a continuous
opening command to the shunt trip
in order to prevent the breaker from
closing. This means that interlocking
circuits with continuous commands
may not be set up with shunt trips.
Undervoltage Releases
The circuit breaker cannot be closed
until the undervoltage release is ener-
gized. If the release is not energized,
the circuit breaker can only perform
an idle switching operation.
Frequent idle switching actions
should be avoided as they shorten the
endurance of the circuit breaker.
CA08101001E
Accessory Configurations for EG – RG Circuit Breakers
Figure 12-8. Internal Accessory Configurations
Figure 12-9. Contact Making by the Auxiliary
and Alarm Switches as a Function of the
Switching Position of the Circuit Breaker
For more information visit: www.eaton.com
Series G Molded Case Circuit Breakers
15 – 2500 Amperes for UL, CSA & IEC Applications
Special Features and Accessories
12-63
12
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