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Masterpact™ MP ci rcu it breaker
accessories
auxiliary switches
··-······-
heavy usage auxiliary
24 additional auxiliary switches
MERLIN GERIN
switches (OF)
4 SPOT switches double break construction.
They are directly operated by the main
contacts and insure a large insulation
distance in open position. They are therefore
particularly adapted for insulation of
auxiliary circuits or reliable interlockings.
"a" contacts are open when the breaker is
open and closed when the breaker is closed.
"b" switches are closed when the breaker is
open and open when the breaker is closed.
See page
17
for operating diagrams.
Field installable.
standard auxiliary
switches
(0
and F)
2a
+
2b switches available as standard.
"a" contacts are open when the breaker is
open and closed when the breaker is closed.
"b" switches are closed when the breaker is
open and open when the breaker is closed.
See page
1 7
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. Not
UL
listed.
overcurrent trip switch (SDE)
delivered as standard with control unit.
In addition to the fault trip indicator/reset
button, one SPOT switch provides
alarm/lockout information. This SPOT switch
is oper .1ted only when the breaker is tripped
by the control unit
When the breaker is reset, the "a" switch
(alarm) is open and the "b" switch (lockout) is
closed).
"ready to close" switch (PF)
This SPOT switch indicates that the breaker
is ready to close and that the following
conditions are simultaneously effective :
•
the breaker is open,
•
the stored energy mechanism is charged,
•
the control unit is reset,
•
the breaker opening pushbutton is neither
locked nor padlocked,
•
the breaker is in the fully connected
position.
This contact can
be
series connected to the
closing release (XF) to disable the anti
pumping function.
Field installable.
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standard auxiliary swrtches
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uit
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ready
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1 5
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