Accessories
Secondary Disconnects
Control wiring is connected through drawout secondary
disconnects in the "TEST' and "CONN ECTED" positions only.
Up to 72 control circuits are possible through (36) position
plug-style secondary disconnect blocks factory mounted to
each side of drawout breakers. One substructure disconnect
(SPDOSD36S) must be ordered for each breaker. An additional
block is required for auxiliary switches.
Table
34.1
Secondary Disconnects
Catalog Number
Location
SPDOSD36S
Substructure CD
SPDOSD36B
Breaker@
CD
One must be ordered for each substructure when accessories or communications
are used. When auxiliary switches are used. along with any other electrical acces
sory or communication. two disconnects must be ordered.
@
Order for replacement only. Included with drawout breaker.
Shutters
Shutters prevent u nintentional contact with potentially l ive
primary disconnect stabs when a breaker is racked out of a n
energ ized switchboard compartment .
Table
34.2
Shutters
Frome Size
800-2000A
3000A
4000A
Racking Padlock
Catalog Number
SPDSS20
SPDSS30
SPDSS49
The catalog number TDOPC racking padlock provides a
means for the user to prevent racking tool engagement,
thereby preventing movement of the breaker between the
Disconnected, Test and Connected positions.
By-Pass Switch
Provides control circuit continuity or downstream signal-
ing when drawout is engaged. The switch can be used as
a n interlocking means to ensure the remote close solenoids
cannot be energized until the drawout breaker primaries are
fully engaged. The switch assembly mounts on the station
a ry frame, and the actuator to the carriage. Switch contacts
a re rated at lOA at 600Vac, 0.75A at 125Vdc and 0.25A at
250Vdc.
Table
34.3
By-Pass Switch
Catalog Number
TDOBP2L
TDOBP4L
TDOBP6L
34
Number of Switch Elements
2 N0/2 NC
4 N0/4 NC
6 N0/6 NC
Racking Tool
The racking tool is a drive wrench with a square
Vz"
socket
that engages the racking mechanism of the drawout
breaker. The catalog number is TDORT. Note that one racking
tool is supplied with each group of five drawout breakers at
no charge.
Mechanical I nterlocks for Drawout Breakers
Mechanical interlocks for d rawout breakers provide the
same function as those for stationary breakers. except they
are used with two d rawout breakers, mounted on a common
compartment centerline, in either the same vertical section
or adjacent vertical sections.
Table
34.4
Mechanical Interlocks
Envelope Size
Catalog Number
800-2000
SPDOWB20
2 500-4000
SPDOWB40
Lifting Bar
The lifting bar (TBOLB) provides a means of safely lifting a
d rawout circuit breaker. A chain hook should be attached to
the central hole in the lifting bar.
Position Switch
Provides positive indication when the drawout breaker or
switch primary contact fingers have been ful ly disengaged
from the main bus connections. Switch contacts change
state only after the primary fingers are fully disconnected
when the breaker is being moved from the CON N ECTED posi
tion through the TEST position and i nto the DISCO N N ECTED
position.
May be used as part of a safety i nterlocking system in addi
tion to the visual indicator on the d rawout substructure. The
Position Switch accessory does not indicate either the TEST
or CON N ECTED position. The switch assembly mounts on the
stationary frame and the actuator mounts to the carriage.
Switch contacts are rated at lOA at 600Vac, 0.75A at 125Vdc,
and O.ZSA at 2 50Vdc.
Number of Switch
Product Number
List Price
Elements
S NO/ZNC
SDOPS2L
$ 177.00
4 N0/4 NC
SDOPS4L
$256.00
6 N0/6NC
S DOPS6L
$336.00
www . ElectricalPartManuals
. com
www
. ElectricalPartManuals
. com