Technical information

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1SDC21001EF0001
1SDC210033D0202
Wiring Diagrams of the accessories
Signalling contacts
Description of Figures
Fig. 34 = Three changeover contacts for electrical signalling of circuit-breaker open and one changeover contact
for electrical signalling of circuit-breaker open due to tripping of the magnetic, thermomagnetic or
electronic trip units, YO, YO1, YO2, YU (tripped position) (only for voltages up to 250V).
Fig. 35 = One changeover contact for electrical signalling of circuit-breaker open due to tripping of the ther-
momagnetic electronic trip unit (only for voltages up to 250V).
Fig. 36 = Two changeover contacts for electrical signalling of circuit-breaker open or closed and one changeover
contact for electrical signalling of circuit-breaker open due to tripping of the magnetic, thermomagnetic
or electronic trip units, YO, YO1, YO2, YU (tripped position) (only for voltages up to 250V).
Fig. 37 = One changeover contact for electrical signalling of circuit-breaker open or closed and one changeover
contact for electrical signalling of circuit-breaker open due to tripping of the magnetic, thermomagnetic
or electronic trip units, YO, YO1, YO2, YU (tripped position) (only for voltage up to 400V).
Fig. 38 = Two changeover contacts for electrical signalling of circuit-breaker open or closed (only for voltage
up to 400V).
Caption
= Diagram figure number
* = See the note indicated by the letter
J.. = Connectors for the auxiliary contacts of the withdrawable version circuit-breaker; extraction of the
connectors takes place at the same time as that of the circuit-breaker
Q/0..3 = Circuit-breaker auxiliary contacts
S51 = Contact for electrical signalling of circuit-breaker open due to tripping of the thermomagnetic or
electronic trip unit
SY/1 = Contacts for electrical signalling of circuit-breaker open due to tripping of the thermomagnetic trip
units, YO, YO1, YO2, YU (tripped position)
V1 = Circuit-breaker applications
V4 = Indicative apparatus and connections for control and signalling, outside the circuit-breaker
XB.. = Three-way connector for the plug-in version circuit-breaker auxiliary circuits
XC.. = Six-way connector for the plug-in version circuit-breaker auxiliary contacts
XD.. = Nine-way connector for the auxiliary circuits of the plug-in version circuit-breaker
XE.. = Fifteen-way connector for the auxiliary circuits of the plug-in version circuit-breaker
XV = Terminal boxes of the circuit-breaker applications