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Technical
Section 9
Dimensions
Section 10
P25M electrical auxiliaries
Protection of
motors
4
Functions
Electrical auxiliaries allow remote tripping or fault or position indication of P25M
circuit breakers.
Remote tripping
This can be achieved using an MX or an MN release fixed to the right of the circuit
breaker.
MX shunt release
When energized, this device controls tripping and opening of the circuit breaker
with which it is associated.
MN udervoltage release
When its supply voltage decreases, this device controls tripping and opening of
the circuit breaker with which it is associated.
Remote indication of the P25M circuit breaker position
This is achieved with the help of position or fault tripping contacts, mounted to the
left of the device:
P25M circuit breaker “open” or “closed” position contact
It can be obtained using “position contact” blocks:
n
O to indicate the “contact closed” position during rest cycles
n
F to indicate the “contact open” position during rest cycles
Two versions are available:
n
O + F
n
C + F
These contacts are fixed to the right of the P25M (two blocks maximum).
Position and fault tripping contact
It can be achieved using “position contact + fault indication contact” blocks:
n
SD.O to indicate a contact open fault
n
SD.F to indicate a contact closed fault
Four versions are available:
n
F + SD.F
n
O + SD.O
n
F + SD.O
n
O + SD.F
These contacts are fixed to the left of the P25M, one “position-fault indication
contact” block and one “position contact” block maximum.
Technical data
Rated current (Ie) of auxiliary contacts under the rated voltage (Ue)
Voltage rating
Current rating Ie
Ue
position contact
Fault contact
AC 15
DC 13
AC 14
DC 13
(V AC)
(V DC)
(A AC)
(A DC)
(A AC)
(A DC)
415
220
2.2
0.5
-
-
240
110
3.3
1.3
-
-
130
60
4.5
3
0.5
0.15
48
48
6
5
1
0.3
24
24
-
6
1.5
1
Technical data common to auxiliaries
Connection:
Terminal clamps for:
2 x 1 mm
2
min. rigid cables
2 x 2.5 mm
2
max. flexible cables
2 x 1.5 mm
2
flexible cable with end
Combination of auxiliaries
Position
contact
Position + fault
contact
P25M circuit
breaker
MX shunt
release
MN undervoltage
release
+
+
+
or