Technical information

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1SDC210033D0202
Early auxiliary contacts
in the handle
Early auxiliary contacts inside the
circuit-breaker and connector
Early auxiliary contacts - AUE
Early contacts in relation to closing: allow the undervoltage release to be supplied before the main
contacts close, in accordance with the IEC 60204-1, VDE 0113 Standards.
Early contacts in relation to opening: allow any electronic devices connected to the system that
could be damaged owing to overvoltages generated by the circuit-breaker opening operation to be
disconnected in advance.
The early opening/closing auxiliary contacts can be:
Q
installed inside the direct and transmitted rotary handle operating mechanisms for all the SACE
Tmax XT family circuit-breakers (max two contacts @ 400V):
– in the cabled version with 1m long cables (AWG20 cable sections);
– a dedicated code is available in the withdrawable version which includes the connector for
the moving part and fi xed part;
Q
installed in the three-pole or four-pole XT2 and XT4 fi xed circuit-breakers (max two 250V
auxiliary contacts). This type of early contact is supplied with a back clamping to be installed on
the left-hand side of the circuit-breaker to facilitate wiring operations (AWG20 cable diameters).
Opening/closing contacts installed in a 4 poles circuit-breaker excludes use of the RC Sel
release.
For further details about the electrical specifi cations of the contacts, consult the “400V DC and
250V AC contacts” section of the Accessories chapter.
Motor operators
Devices that allow circuit-breaker opening and closing to be controlled:
Q
in the remote mode, by means of electric controls;
Q
locally directly from the front, by means of a special mechanisms.
MOD direct action motor operator
Direct action motor
operator (MOD)
Lever case: under the cover
there is the thermomagnetic trip
unit rotary switch for the setting
of thermal protection
Slot for the
operating lever
Slot for padlock device
Position for key lock (opzional)
AUTO-MANUAL selector
Test pushbutton
The direct action motor control available for XT1 and XT3, is supplied:
Q
complete with 1m long cables;
Q
with fl ange, to replace the standard one supplied with the circuit-breaker;
Q
with padlock device, only removable when the motor is in the open position. The padlock device
accepts up to three 8 mm padlocks;
Q
auxiliary contacts (AU-MO) which allow the motor control mode (manual or auto) signal to be
routed outside;
Q
(on request) the motor operator can be fi tted with a key lock (consult the “locks” section in the
Accessories chapter).
Signalling of the circuit-breaker
status ON-OFF