ABB Emax E1 Installation And Service Instructions Manual page 64

S75E/1.4 = Contacts for electrical signalling of circuit-breaker in disconnected position (only with withdrawable circuit-
breakers)
S75I/1..5 = Contacts for electrical signalling of circuit-breaker in connected position (only with withdrawable circuit-breakers)
S75T/1..4 = Contacts for electrical signalling of circuit-breaker in test isolated position (only with withdrawable circuit-breakers)
SC = Pushbutton or contact for closing the circuit-breaker
SO = Pushbutton or contact for opening the circuit-breaker
SO1 = Pushbutton or contact for opening the circuit-breaker with delayed trip
SO2 = Pushbutton or contact for opening the circuit-breaker with instantaneous trip
SR = Pushbutton or contact for electrical circuit-breaker reset
TI/L1 = Current transformer located on phase L1
TI/L2 = Current transformer located on phase L2
TI/L3 = Current transformer located on phase L3
TO = Homopolar toroidal current transformer (see note W)
Vaux = Auxiliary power supply voltage (see note F)
UI/L1 = Current sensor (Rogowski coil) located on phase L1
UI/L2 = Current sensor (Rogowski coil) located on phase L2
UI/L3 = Current sensor (Rogowski coil) located on phase L3
UI/N = Current sensor (Rogowski coil) located on neutral
UI/0 = Current sensor (Rogowski coil) located on the conductor connecting to earth the star point of the MV/LV
transformer (see note G)
W1 = Serial interface with control system (external bus): EIA RS485 interface (see note E)
W2 = Serial interface with the accessories of PR121/P, PR122/P and PR123/P releases (internal bus)
X = Delivery connector for auxiliary circuits of withdrawable version circuit-breaker
X1...X7 = Connectors for the accessories of the circuit-breaker
XF = Delivery terminal box for the position contacts of the withdrawable circuit-breaker (located on the fi xed part of the
circuit-breaker)
XK1 = Connector for power circuits of PR121/P, PR122/P and PR123/P releases
XK2 - XK3 = Connectors for auxiliary circuits of PR121/P, PR122/P and PR123/P releases
XK4 = Connector to signal open/close
XK5 = PR120/V module connector
XO = Connector for YO1
XV = Delivery terminal box for the auxiliary circuits of the fi xed circuit-breaker
YC = Shunt closing release
YO = Shunt opening release
YO1 = Trip coil
YO2 = Second shunt opening release (see note Q)
YR = Coil to electrically reset the circuit-breaker
YU = Undervoltage release (see notes B and Q)
Figures Description
Fig. 1 = Motor circuit to load 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. 7 = Undervoltage release with electronic time-delay device, outside the circuit-breaker (see notes B and Q)
Fig. 8 = Second shunt opening release (see note Q).
Fig. 11 = Contact for electrical signalling of springs loaded.
Fig. 12 = Contact for electrical signalling of undervoltage release energized (see notes B and S).
Fig. 13 = Contact for electrical signalling of circuit-breaker open due to tripping of the overcurrent release. The circuit-
breaker may be closed only after pressing the reset pushbutton.
Fig. 14 = Contact for electrical signalling of circuit-breaker open due to tripping of the overcurrent release and electrical
reset coil. The circuit-breaker may be closed only after pressing the reset pushbutton or energizing the coil.
Fig. 21 = First set of circuit-breaker auxiliary contacts.
Fig. 22 = Second set of circuit-breaker auxiliary contacts (not available for PR122/P and PR123/P releases)(see note V)
Fig. 23 = Third set of supplementary auxiliary contacts outside the circuit-breaker.
Fig. 31 = First set of contacts for electrical signalling of circuit-breaker in connected, test isolated, disconnected position.
Fig. 32 = Second set of contacts for electrical signalling of circuit-breaker in connected, test isolated, disconnected
position.
Fig. 41 = Auxiliary circuits of PR121/P release (see note F).
Fig. 42 = Auxiliary circuits of PR122/P and PR123/P releases (see notes F, M and V).
Fig. 43 = Circuits of the measuring module PR120/V of the PR122/P and PR123/P releases internally connected to the
three-pole and four-pole circuit-breaker (optional for the release PR122/P) (see note U).
Fig. 44 = Circuits of the measuring module PR120/V of the PR122/P and PR123/P releases externally connected to the
circuit-breaker (optional for the release PR122/P) (see note O, U and X).
Fig. 45 = Circuits of the communication module PR120/D-M of the PR122/P and PR123/P releases (optional) (see note E).
Fig. 46 = Circuits of the indicator module PR120/K of the PR122/P and PR123/P releases - connection 1 (optional)
(see note V).
Model L6555
Apparatus
Doc. no.
1SDH000460R0002
Scale
Emax
Page No
64/74