Rockwell Automation 140G-Rx Installation Instruction-140G-R - Manual (Page 26)

DIR 1000682R0002 (L5757)
(26)
13. Circuit diagrams
WARNING:
Carefully read notes F and O on the circuit diagrams before installing the circuit-breaker.
OPERATING STATE SHOWN
The diagram illustrates the components in the following conditions:
- circuit-breaker open
- circuits de-energized
- releases not tripped
- motor operator with unloaded springs.
VERSIONS
Version without overcurrent release
The applications indicated in figures 13, 14, 41, 42, 43, 44, 45, 46, 62 cannot be provided with this version.
KEY

= Figure number of the diagram
* = See note indicated by the letter
A1 = Circuit-breaker appications
A4 = Example switchgear and connections for operation and signalling, outside the circuit-breaker
F1 = Delayed-trip fuse
K51 = LSIG electronic release with the following protection functions:
- L overload protection with inverse long-time delay trip setting I1
- S short-circuit protection with inverse or definite short time-delay trip setting I2
- I short-circuit protection with instantaneous time-delay trip-setting I3
- G earth fault protection with inverse short time-delay trip-setting I4
M = Motor for loading the closing springs
Q = Circuit-breaker
Q/1...5 = Auxiliary contacts of the circuit-breaker
S33M/1...3 = Limit contacts of the spring loading motor
S51 = Contact for electrical signalling of circuit-breaker open due to tripping of the overcurrent release.
The circuit-breaker can only be closed after the reset pushbutton has been pressed,or after the coil has been energized
for electrical reset (if available)
S51/P1 = Programmable contact (signals overload in progress - start by default)
SC = Pushbutton or contact for closing the circuit-breaker
SO = Pushbutton or contact for opening the circuit-breaker
SO2 = Pushbutton or contact for opening the circuit-breaker with instantaneous trip
TI/L1 = Current transformer located on phase L1
TI/L2 = Current transformer located on phase L2
TI/L3 = Current transformer located on phase L3
TU = Isolation voltage transformer (see note O)
Uaux. = Auxiliary power supply voltage (see note F)
UI/L1 = Current transformer (Rogowski coil) located on phase L1
UI/L2 = Current transformer (Rogowski coil) located on phase L2
UI/L3 = Current transformer (Rogowski coil) located on phase L3
UI/N = Current transformer (Rogowski coil) located on neutral
W2 = Serial interface with the accessories of releases LSIG (internal bus)
X1...X7 = Connectors for the circuit-breaker appications
XK1 = Connector for the power circuits of releases LSIG.
XO = Connector for YO1 release
XR3…XR13 = Connectors for the auxiliary circuits of releases LSIG.
XV = Delivery terminal box for the auxiliary circuits of the circuit-breaker
YC = Shunt closing release
YO = Shunt opening release
YO1 = Overcurrent shunt opening release (trip coil)
YU = Undervoltage release (see notes B and Q)
DESCRIPTION OF FIGURES
Fig.1 = Circuit of the motor for loading the closing springs.
Fig.2 = Circuit of shunt closing release.
Fig.4 = Shunt opening release.
Fig.6 = Instantaneous undervoltage release (see notes B and Q).
Fig.11 = Contact for electrical signalling of springs loaded.
Fig.13 = Contact for electrical signalling of circuit-breaker open due to tripping of the overcurrent release.
The circuit-breaker can only be closed after the reset pushbutton has been pressed, or after the coil has
been energized for electrical reset (if available)
Fig.22 = Auxiliary contacts of the circuit-breaker
Fig.41 = Auxiliary circuits of the LSIG release (see note F).
NOTES
B) The undervoltage release is supplied for operation using a power supply branched on the supply side of the circuit-breaker or from an
independent source: the circuit-breaker can only close when the release is energized (there is a mechanical lock on closing).
If there is the same power supply for the closing and undervoltage releases and the circuit-breaker must close automatically when the
auxiliary voltage returns, a 30 ms delay must be introduced between the accept instant of the undervoltage release and energizing of
the closing release. This can be achieved by means of a circuit outside the circuit-breaker comprising a permanent closing contact, the
contact indicated in fig. 12 and a time-delay relay.
F) The auxiliary voltage Vaux allows all the functions of LSIG releases to be activated.
Since a Vaux isolated from earth is required, it is necessary to use “galvanically separated converters” conforming to standards