78 / 148
A-62
Electrical and mechanical
accessories
Compact NS630b to 1600
(cont.)
Indication contacts
Contacts installed in the device
Changeover contacts are used to remote circuit breaker status information and can
thus be used for indications, electrical locking, relaying, etc.
They comply with the IEC 60947-5 international recommendation.
Functions
OF (ON/OFF) - indicates the position of the main 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-leakage fault.
v
operation of a voltage release
v
operation of the "push to trip" button
v
disconnection when the device is ON.
v
Returns to de-energised state when the circuit breaker is reset.
SDE (fault indication) - indicates that the circuit breaker has tripped due to:
b
an overload
v
a short-circuit
v
an earth-leakage fault.
v
Returns to de-energised state when the circuit breaker is reset.
CAF / CAO (early-make or early-break function) - indicates the position of the
b
rotary handle. 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).
Installation
OF, SD and SDE functions - a single type of contact provides all these different
b
indication functions, depending on where it is inserted in the device. The contacts
clip into slots behind the front cover of the circuit breaker
CAF / CAO function - the contact fits into the rotary-handle unit (direct or
b
extended).
Electrical characteristics of the OF/SD/SDE/CAF/CAO auxiliary contacts
Contacts
Standard
Low level
Rated thermal current (A)
6
5
Minimum load
100 mA at 24 V
1 mA at 4 V
Utilisation cat. (IEC 60947-5-1) AC12 AC15 DC12 DC14 AC12 AC15 DC12 DC14
Operational
24 V
6
6
6
1
5
3
5
1
current (A)
48 V
6
6
2.5 0.2 5
3
2.5 0.2
110 V
6
5
0.6 0.05 5
2.5 0.6 0.05
220/240 V 6
4
-
-
5
2
-
-
250 V
-
-
0.3 0.03 5
-
0.3 0.03
380/440 V 6
2
-
-
5
1.5 -
-
480 V
6
1.5 -
-
5
1
-
-
660/690 V 6
0.1 -
-
-
-
-
-
Connected, disconnected, test position carriage switches
A single type of changeover contact can be mounted optionally on the chassis to
indicate, depending on the slot where it is installed:
the connected (CE) position
b
the disconnected (CD) position. This position is indicated when the required
b
clearance for isolation of the power and auxiliary circuits is reached
the test (CT) position. In this position, the power circuits are disconnected and the
b
auxiliary circuits are connected.
Installation
contacts for the connected (CE), disconnected (CD) and test (CT) positions clip
b
into the upper front section of the chassis.
Electrical characteristics of the CE/CD/CT auxiliary contacts
Contacts
Standard
Low level
Rated thermal current (A)
8
5
Minimum load
100 mA at 24 V
2 mA at 15 V
Utilisation cat. (IEC 60947-5-1) AC12 AC15 DC12 DC14 AC12 AC15 DC12 DC14
Operational
24 V
8
6
2.5 1
5
3
5
1
current (A)
48 V
8
6
2.5 0.2 5
3
2.5 0.2
110 V
8
5
0.8 0.05 5
2.5 0.8 0.05
220/240 V 8
4
-
-
5
2
-
-
250 V
-
-
0.3 0.03 5
-
0.3 0.03
380/440 V 8
3
-
-
5
1.5 -
-
660/690 V 6
0.1 -
-
-
-
-
-
All the auxiliary contacts opposite are also available
in "low-level" versions capable of switching very low
loads (e.g. for the control of PLCs or electronic
circuits).
Functions and characteristics
054549-18
OF, SD and SDE changeover contacts.
056456
Carriage switches for connected (CE), disconnected (CD) and
test (CT) positions.