Citadel 2.0 - Instruction Manual - page:
44
IM
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21
Close coil (52CC)
The close coil is a standard component of the Citadel circuit breaker used to close the
circuit breaker electrically by unlatching the closing spring and releasing its stored energy.
Close Coils are available for AC or DC control voltages as prescribed in the ordering
information sheets. Generally available close coil control voltages are 48, 125 & 250 VDC
and 120 & 230 VAC.
AC control voltages will employ a rectifier in the circuitry prior to connection to the close
coil. The close signal is a momentary electrical pulse that is sent to the close coil and then
removed by electrical auxiliary contacts within the Citadel breaker mechanism.
Trip coil (52T)
The trip coil is a standard component of the Citadel circuit breaker used to open the circuit
breaker electrically by means of a direct action solenoid armature unlatching and releasing
the stored energy of the opening spring.
Trip Coils are available for DC voltages as prescribed in the ordering information sheets.
Generally available trip coil control voltages are 48, 125 & 250 VDC.
Close and trip coils are hard wired to a terminal block to ensure a most rugged connection.
Close and trip coils are the same coil when voltages in the breaker are the same.
1
Manual Close Button
2
Close coil
3
Trip coil
4
Manual Open Button
5
Operating Coil Terminal Block
FIGURE 19
1
5
2
3
4
C I T A D E L C O N T R O L S
