GE Industrial Solutions Power Break II Draw-out 800-4000 Amp Frames - Manual (Page 5)

Power Break® II Devices
Draw-Out Device Installation
1
Description
Types SSD and SHD Power Break II draw-out circuit
breakers are used in types SPS and SPH substructures, with
appropriate catalog numbers listed in Table 1. Power
Break II switches are used only with type SPH
substructures, with appropriate catalog numbers listed in
Table 2. Draw-out construction permits activation of a new
feeder, allows rapid replacement of a device, and
facilitates inspection and maintenance of the draw-out
device with no need to de-energize the entire switchboard.
Draw-Out Breaker Substructure
SSD08X2## SPSDOS08
SHD08X2## SPHDOS08
SSD16X2## SPSDOS16
SHD16X2## SPHDOS16
SSD20X220 SPSDOS20
SHD20X220 SPHDOS20
SSD25X### SPSDOS25
SHD25X### SPHDOS25
SSD30X3## SPSDOS30
SHD30X3## SPHDOS30
SSD40X4## SPSDOS40
SHD40X4## SPHDOS40
Note: In the circuit breaker catalog number, replace “X”
with “B” for MicroVersaTrip Plus™ or MicroVersaTrip
PM™ Trip Units or with “D” for Power+™ Trip Units
Table 1. Catalog numbers of draw-out circuit breakers and
corresponding substructures.
Draw-Out Switch Substructure
SHD08Y2## SPHDOS08
SHD16Y2## SPHDOS16
SHD20Y2## SPHDOS20
SHD25Y### SPHDOS25
SHD30Y3## SPHDOS30
SHD40Y4## SPHDOS40
Table 2. Catalog numbers of draw-out switches and corresponding
substructures.
Features
The features described below are illustrated in Figures 1,
2, and 3.
Primary Disconnects
. Primary power is fed through multiple-
finger primary disconnects when the device is in the
connected position.
Secondary Disconnects
. Control power is provided through
the secondary disconnects in the test and connected
positions only. All accessories terminate at dedicated
positions regardless of the combination of accessories
installed.
Rollers . The rollers on the sides of the device ride on
retractable rails in the draw-out substructure for easy
installation and removal.
Draw-Out Mechanism
. A racking shaft powers a centrally
mounted screw through a chain drive into a fixed nut in
the substructure. A special speed wrench is supplied with
an integral 1 2 -inch square-drive socket to aid in
installation and removal.
Racking Shaft Wrench Lockout Plate
. This interlock prevents
engagement of the wrench when the device contacts are
closed.
Figure 1. Rear view of the Power Break® II draw-out device.
Figure 2. Left side of the device, showing the padlock accessory and
racking shaft lockout plate.
Shutter
Actuator
Primary
Disconnects
Draw-Out
Interlock
Draw-Out
Mechanism
Bypass Switch
Actuator
Secondary
Disconnects
Rollers
Draw-Out Padlock
Accessory
Cat. No. TDOPC
Racking Shaft
Wrench Lockout
Plate