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SBA 2000
Siemens SBA 2000 User Manual
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Inter
nal Accessories
37
Preliminary Installation Procedures
3
.
)
Remove the breaker cover by first removing the (4) #10
Phillips head screws at the corners and the (4) head
screws in recesses in cover.
4
.
)
Remove cover
5
.
)
Remove the trip unit if installed. by removing trip unit
retaining screw.
6a.)
Slide the trip unit up to clear the support bracket pins.
b.)
Remove the trip unit by pulling the trip unit away from the
trip unit plug.
Courtesy of NationalSwitchgear.com
38
40
Table of Contents
Table of Contents
3
General Information
4
Introduction
4
Frame Sizes and Frame Ratings
5
Rating Plugs
5
Interruption and Short Time Ratings
5
Overcurrent Protection Configurations
5
RMS Current Sensing
5
Accessories
5
Description
6
Insulated - Encased Construction
6
Compact Size
7
Bus Spacing and Connections
8
Two-Step Stored Energy Mechanism
8
Centralized Controls and Indicators
8
Simplified Minimum Depth Drawout Mechanism
9
Electronic Trip Unit
10
Overcurrent Protection Configurations
10
Frame Installation Instructions
11
Installing the Stationary Drawout Element
11
Installing the Moveable Drawout Element
12
Installing Fixed - Mounted Circuit Breakers
13
Installing the Electronic Trip Unit
14
Inserting/Removing Rating Plug
16
Operating Instructions
18
Part One - Operating the SB Encased Systems Breaker
18
Manually Charging the Stored Energy Mechanism
19
Discharging the Stored Energy Mechanism
20
Locally Closing the Circuit Breaker
20
Locally Opening the Circuit Breaker
20
Part Two - Manipulating the Moveable Drawout Element
21
Racking Controls
22
Directional Shift Lever
22
Racking Pump Handle
23
Drawout Position Indicator
23
Fully Withdrawn and Unlocked Position
24
Unlocked to Test Position
25
Test to Connected Positions
26
Connected to Test Position
27
Test to Unlocked Position
28
Rotating the Moveable Drawout Element
29
Part Three - Monitoring the Electronic Trip Unit
30
Internal Accessories
38
Preliminary Installation Procedures
38
Electric Motor Operator
43
Local Electric Close
49
Remote Close Assembly
50
Auxiliary Switches
54
Undervoltage Release
56
Shunt Trip
58
Electronic Bell Alarm
61
Remote Indicator Panel
62
External Accessories
65
Ground Fault Monitor
65
Display Module
65
Ground Fault Sensing and Relaying
66
Key Interlock
69
Drawout Padlock
70
Closing Blocking Device
70
Cell Switches
71
Drawout Safety Shutters
72
Secondary Disconnects
74
Control Terminal Blocks
74
Sliding Secondary Disconnects
75
Pressure Wire Connectors
76
Neutral Sensing Transformer
77
Lifting Device Bracket
79
Auxiliary Power Source
80
Universal Test Kit
81
Dead Front Shield
83
Outline Dimension Drawings
84
1200A Stationary Drawout
84
1200A Moveable Drawout
86
2000A Stationary Drawout
88
2000A Moveable Drawout
90
1200A Fixed-Mounted
92
2000A Fixed-Mounted
94
Ordering Information
96
Electronic Trip Units
96
Rating Plugs
97
Internal Accessories
98
External Accessories
99
UL Listings and File Numbers
99
Accessory Wiring Diagrams
100
4
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Siemens SBA 2000 Specifications
General
Brand
Siemens
Model
SBA 2000
Category
Circuit breakers
Language
English
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