Page 341 - SACE Tmax XT - Technical Catalogue

WIRING DIAGR AMS 3/11

03

SZo(DFo) = Zone selectivity output for S protection Notes XT7-XT7M
or output in "forward" direction for D A) Auxiliary power supply must be present for
protection zone selectivity and local bus functions
Tl/L1-L2-L3 = Current transformer phase L1-L2-L3 (consult Fig. 31-32).
Tl/N = Current transformer on neutral B) When there are mixed auxiliary contacts, 01
TU1-2 = Insulation voltage transformer (outside and 02 are 400V, while 03-04 are 24V.
circuit-breaker) C) Always supplied with Ekip Com module.
Uaux = Auxiliary supply voltage D) Always supplied with motor for loading clos-
Ul/L1-L2-L3 = Current sensor phase L1-L2-L3 ing springs in Fig. 13.
Ul/N = Current sensor on neutral E) A voltage transformer is mandatory in the
Ul/O = SingIe-pole current sensor case of external sockets. External sockets are
W2 = Serial interface with internal bus (local mandatory for systems for over 690V rated
bus) voltage. Admissible maximum rated second-
W9...14 = RJ45 connector for communication ary voltage is 230V.
modules F) Connections between RC residual current
W9R...12R= RJ45 connector for redundant protection sensor and poles of connector X
communication modules (or XV) of the circuit-breaker must be made
X = Delivery connector for auxiliary circuits of 4-pole shielded cable with paired braided
of withdrawable circuit-breaker conductors (BELDEN 9696 paired type or
XB1...7 = Connectors for circuit-breaker equivalent) no more than 10 m in length.
applications G) Earth fault protection (Gext) by means of a
XF = Delivery terminal box for position current sensor on the neutral point of the
contacts of withdrawable circuit- MV/LV transformer is available with all elec-
breaker tronic protection releases equipped with dis-
XK1...3 = Connectors for auxiliary circuits of play interface with LSIG protections. The con-
EKIP protection release nection between terminals 1 and 2 of the UI/O
XK7 = Connector for auxiliary circuits of current transformer and Ge+ and Ge- poles of
communication modules connector X (or XV) must be made of shielded
XV = Delivery terminal board for auxiliary and stranded 2-pole cable (BELDEN 8841 or
circuits of fixed circuit-breaker equivalent) no more than 15 m in length.
YC = Closing coil H) Use the supplied cable to make the connec-
YO = Opening coil tion. There must be no break in the cable. Use
YO1 = Opening coil for overcurrent of other cables or extensions using interme-
YO2 = Second opening coil diate terminal boxes is not allowed. With a
YR = Coil for electrical resetting of trip circuit- breaker, poles Ne+ and Ne- of connec-
contact S51 tor X (or XV) are short-circuited unless the ex-
YU = Undervoltage coil ternal neutral is present: enable short-circuit
if connection is absent.
I) Mandatory if any Ekip module is present.
L) Up to two applications between Fig. 41...59
taken only once can be supplied. The Ekip
Com module selected can be duplicated by
choosing between Fig. 61...67.