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Power Break® II Devices 

Draw-Out Device Installation 

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  SP

S

  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 "G" for 
EntelliGuard

 ®

 Trip 

U

nit

s

 

 or 

“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 

S

S

D08

X

2##

SP

S

DOS08

S

S

D16

X

2##

SP

S

DOS16

S

S

D20

X

2##

SP

S

DOS20

S

S

D25

X

###

SP

S

DOS25

S

S

D30

X

3##

SP

S

DOS30

S

S

D40

X

4##

SP

S

DOS40

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 retract- 

able  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. 

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

Table 2. Catalog numbers of draw-out switches and corresponding substructures. 


Figure 2. Left side of the device, showing the padlock accessory and racking shaft lockout plate. 

1

 

Note: In the switch catalog number, replace “X” with "W"

 

for 

EntelliGuard ®  

Control

 

U

nit

s

 or with

 

Y

” for Power+™ 

Control

 Unit

s

Summary of Contents for GE Power Break II GEH6271

Page 1: ...GEH6271 INSTALLATION INSTRUCTIONS Power Break II Devices Draw Out 800 4000 Ampere Frames ...

Page 2: ...ble at the time of its publication While efforts have been made to ensure accuracy the information contained herein does not cover all details or variations in hardware and software nor does it provide for every possible contingency in connection with installation operation and maintenance Features may be described herein that are not present in all hardware and software systems ABB Industrial Sys...

Page 3: ...iftingBar attachedto a draw out devicefor liftingwith a hoist 3 6 Deviceinstalledon rails ready to be pushed into the substructure 4 7 Wrench attachedto the devicerackingshaft 4 8 Compartmentpositionindicatoron the front of the device 4 9 Withdrawingthe substructurerails 5 10 Rotatingthe deviceforward for inspection 5 List of Tables 1 Catalognumbers of draw out circuitbreakersand correspondingsubs...

Page 4: ...ustrated in Figures 1 2 and 3 PrimaryDisconnects 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 ro...

Page 5: ...and standards require that conductors be sized to the substructure Therefore installing devices in substructures with higher ratings is possible but not economical Draw Out Padlock Accessory When a padlock is installed this feature works with the racking shaft lockout plate to prevent engagement of the racking shaft wrench Shutter Actuator A stud actuates the optional shutter accessory By Pass Swi...

Page 6: ... end of the racking shaft with the supplied wrench catalog number TDORT and rotate the shaft clockwise to draw the device into the TEST or CONNECTED position as illustrated in Figure 7 The compartment position indicator is shown in Figure 8 NOTE If the device does not fit the structure check the rejection relationship illustratedin Figure 8 to verifythat a correctly rated device is being installed...

Page 7: ...rails ready to be pushed into the substructure Figure 7 Wrench attached to the device racking shaft Figure 8 Compartment position indicator on the front of the device Racking Tool Substructure Rejection Feature 06 in minimum Device Rejection Feature Compartment Position Indicator 4 ...

Page 8: ...EST or DISCONNECTED position The compartment position indicator is shown in Figure 8 Pull the substructure rails out as far as possible until they drop into the horizontal locked position as illustrated in Figure 9 From the DISCONNECTED position pull the device out on the rails until the front rollers fall into the detent as illustrated in Figure 6 The device can now be rotated about the front rol...

Page 9: ...ed grease Check primary and secondary disconnecting surfaces for signs of abnormal wear or overheating If required clean contacts with a suitable solvent Discoloration of silvered surfaces is not harmful unless atmospheric conditions cause deposits such as sulfides on the contact surfaces Check to see that all anchor bolts and structure bolts are tight Inspect all cable or bus connectionsfor signs...

Page 10: ...hall prevail ABB Inc does not accept any responsibility whatsoever for potential errors or possible lack of information in this document We reserve all rights in this document and in the subject matter and illustrations contained therein Any reproduction or utilization of its contents in whole or in parts is forbidden without prior written consent of ABB Inc Copyright 2019 ABB All rights reserved ...

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