Technical information

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1SDC21098DF0001
1SDC210033D0202
Service releases
Description of Figures
Fig. 7 = Instantaneous undervoltage release in the version for machine tools with one contact in series (see
notes B, C and F).
Fig. 8 = Instantaneous undervoltage release in the version for machine tools with two contacts in series (see
Notes B, C and F).
Fig. 9 = First auxiliary early contact operated by the crank handle.
Fig. 10 = Second auxiliary early contact operated by the crank handle.
Fig. 11 = One changeover contact for electrical signalling of circuit-breaker open due to tripping of the residual
current release type RC Inst, RC Sel, RC B Type or RC Sel 200.
Fig. 12 = Residual current release circuits type RC Sel, RC B Type or RC Sel 200.
Fig. 13 = Two contacts for electrical signalling of residual current release pre-alarm and alarm type RC Sel,
RC B Type or RC Sel 200.
Notes
B) The undervoltage release is supplied for power supply branched on the supply side of the circuit-
breaker or from an independent source: closing is only possible with the release energised (the lock
on closing is made mechanically).
C) Contacts S4/1 and S4/2 shown in figures 7-8 open the circuit with the circuit-breaker open and
reclose it when a manual closing command is given by means of the rotary handle, in accordance
with the Standards regarding machine tools (in any case closing does not take place if the undervolt-
age release is not supplied).
F) Additional external resistor for undervoltage supplied at 480/525V AC.
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
K87 = Residual current release type RC Inst, RC Sel, RC Sel 200, RC B Type
R = Resistor (see note F)
S4/1-4 = Auxiliary early contacts operated by the circuit-breaker mounted crank handle (see note C)
S87/1 = Contact for electrical signalling of pre-alarm of the residual current release type RC Sel, RC B or RC
Sel 200
S87/2 = Contact for electrical signalling of alarm of the residual current release type RC Sel, RC B or RC Sel 200
S87/3 = Contact for electrical signalling of circuit-breaker open due to tripping of the residual current release
type RC Sel, RC B or RC Sel 200
SO = Pushbutton or contact for opening the circuit-breaker
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
XV = Terminal boxes of the circuit-breaker applications
YU = Undervoltage release (see note B)