Masterpact® circuit breaker
accessories
MP1 039P.O
24
additional auxiliary switches
M P 1 040P.O
1 6
heavy usage auxiliary
switches (OF)
4 SPOT switches with double break
construction. They are directly operated by
the main contacts and insure a large
insulation distance in open position. They
are therefore particularly suitable for
insulation of auxiliary circuits or reliable
interlockings.
- "a" contacts are open when the circuit
breaker is open and closed when the circuit
breaker is closed.
- "b" switches are closed when the circuit
breaker is open and open when the circuit
breaker is closed.
See page 1 8 for operating diagrams.
Auxiliary switches are field-installable.
standard auxiliary
switches
(0
and F)
2a
+
2b switches available as standard.
- "a" contacts are open when the circuit
breaker is open and closed when the circuit
breaker is closed.
- "b" switches are closed when the circuit
breaker is open and open when the circuit
breaker is closed.
See page 18 for operating diagrams.
24 additional auxiliary
switches (OFSUP)
An external plate holds a set of 24 SPOT
switches. They are operated by the means
of a cable. Only available for drawout circuit
breakers.
" ready to close" switch (PF)
This SPDT switch indicates that the circuit
breaker is ready to close and that the
following conditions exist:
•
the circuit breaker is open
•
the stored energy mechanism is charged
•
the control unit is reset
•
the circuit breaker opening push button is
neither locked nor padlocked
•
the circuit breaker is in the fully
connected or test position
The switch is field-installable.
auxiliary switches
-��-------��
: M--
closed
--r:CZ
tH--
open - -
�
I
22 24
32 34 I
42
l 44
=�
�
1
�
1
=
t
�
+s
�
=
�
_ _ _
_._
_ _
__
_ _ _
._
_ _
_._
_ _
standard auxiliary switches
- - - - -
,-
- - - - - - ·
I
ready
to close
I
y
- - - - - ·
t
· - ·
- - - - - -
- - ·
251
_ _ _ _ _ _ _
....._
_ _ _ _
M P 1 0 1 5A.O
MP101 5A.O
MP101 5A.O
www
. ElectricalPartManuals
. com