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Functions and
characteristics
Accessories and auxiliaries
Indication contacts
One contact model provides circuit-breaker
status indications (OF - SD - SDE - SDV).
An early-make or early-break contact, in
conjunction with a rotary handle, can be
used to anticipate device opening or
closing.
A CE / CD contact indicates that the chassis
is connected / disconnected.
These common-point changeover contacts provide remote circuit-breaker status
information.
They can be used for indications, electrical locking, relaying, etc.
They comply with the IEC 60947-5 international recommendation.
Functions
Breaker-status indications, during normal operation or after a fault
A single type of contact provides all the different indication functions:
OF (ON/OFF) indicates the position of the circuit breaker contacts
b
SD (trip indication) indicates that the circuit breaker has tripped due to:
b
an overload
v
a short-circuit
v
an earth fault (Vigi) or a ground fault (Micrologic 6)
v
operation of a voltage release
v
operation of the "push to trip" button
v
disconnection when the device is ON.
v
The SD contact returns to de-energised state when the circuit breaker is reset.
SDE (fault-trip indication) indicates that the circuit breaker has tripped due to:
b
an overload
v
a short-circuit
v
an earth fault (Vigi) or a ground fault (Micrologic 6).
v
The SD contact returns to de-energised state when the circuit breaker is reset.
SDV indicates that the circuit breaker has tripped due to an earth fault. It returns to
b
de-energised state when the Vigi module is reset.
All the above auxiliary contacts are also available in "low-level" versions capable of
switching very low loads (e.g. for the control of PLCs or electronic circuits).
Rotary-handle position contact for early-make or early-break functions
CAM (early-make or early-break function) contacts indicate the position of the
b
rotary handle.
They are used in particular for advanced opening of safety trip devices (early break)
or to energise a control device prior to circuit-breaker closing (early make).
Chassis-position contacts
CE/CD (connected/disconnected) contacts are microswitch-type carriage
b
switches for withdrawable circuit breakers.
Installation
OF, SD, SDE and SDV functions: a single type of contact provides all these
b
different indication functions, depending on where it is inserted in the device. The
contacts clip into slots behind the front cover of the circuit breaker (or the Vigi module
for the SDV function).
The SDE function on a circuit breaker equipped with a thermal-magnetic trip unit
requires the SDE actuator.
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Electrical characteristics of auxiliary contacts
Contacts
Standard
Low level
Types of contacts
All
OF, SD, SDE, SDV
Rated thermal current (A)
6
5
Minimum load
100 mA at 24 V DC
1 mA at 4 V DC
Utilisation cat. (IEC 60947-5-1)
AC12 AC15 DC12 DC14 AC12 AC15 DC12 DC14
Operational
current (A)
24 V
AC/DC 6
6
6
1
5
3
5
1
48 V
AC/DC 6
6
2.5
0.2
5
3
2.5
0.2
110 V
AC/DC 6
5
0.6
0.05
5
2.5
0.6
0.05
220/240 V AC 6
4
-
-
5
2
-
-
250 V
DC
-
-
0.3
0.03
5
-
0.3
0.03
380/440 V AC 6
2
-
-
5
1.5
-
-
480 V
AC
6
1.5
-
-
5
1
-
-
660/690 V AC 6
0.1
-
-
-
-
-
-
044314
Indication contacts.
xxxxxx
CE/CD carriage switches.
559E1860.indd
version: 1.0