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Internal Accessories
Auxiliary Switches
CAUTION: Do not attempt to install an accessory with
the breaker "Closed" or "Charged'.�. Make certain
breaker is "Open" and " Discharged" a s shown above.
Personal injury or mechanical damage may occur.
Preliminary installation procedures are outlined on
pages 35-36.
Auxiliary Switches Ki t (6 switches shown)
Auxiliary Switches
Auxiliary switches are used as signal contacts to indicate
the open/closed status of the breaker's main contacts. The
status of the main contacts is indicated by the open/closed
status of the auxiliary switches as follows:
"A" or "NO"
Open when main contacts are open.
Contacts:
Closed when main contacts are closed.
"B" or "NC"
Closed when main contacts are open.
Contacts:
Open when main contacts are closed .
A maximum of six "A" and "B" auxiliary switches can be
installed i n the breaker. The switch contact ratings are:
Switch Contact Ratings
Supply Voltage
Ampere Rating
ac
1 20V
1 0 Amps
ac
1 0 Amps
240V
ac
480V
6 Amps
de
24V
3 Amps
de
1 25V
0.5 Amps
If practical, the auxiliary switches should be installed prior
to the SB breaker being installed in the switchboard. Before
starting the installation, the breaker should be in the open
position and the stored energy mechanism should be
discharged. A drawout constructed SB breaker, already
installed in the switchboard , should be placed in the
fully withdrawn position to allow access to the secondary
disconnects.
The auxiliary switches are installed on the right side of the
front compartment, behind the trip unit and below the reset
plate.
Auxiliary Switches are installed on the right side.
Follow these steps to install the auxiliary switches:
1 .) Position the auxiliary switch assembly so that it is aligned
with the retaining slot
2.) Tilt the auxiliary switch assembly forward and slip the switch
tab into the retaining slot
Secure the assembly
3.)
in
4.) Run the auxiliary switch wires:
a.) Run the wires through the access hole to the secondary
disconnects or terminal blocks on the right side.
b ) Connect the wires to the designated terminal points
c.) Secure the wires in place with wiring straps as required.
Wires for auxiliary switch(s) exit from the breaker right
hand side - photo is for illustration purposes only.
place.
49
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