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Manuals
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Westinghouse Manuals
Circuit breakers
DB-50
Instructions manual
Westinghouse DB-50 Instructions Manual
Air circuit breakers
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Also See for DB-50
:
Instructions manual
(40 pages)
,
Instruction book
(32 pages)
,
User manual
(28 pages)
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Contents
Table of Contents
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Table of Contents
Table of Contents
Part 1 - Receiving, Handling, and Storing
Inspection
Part 2 - Installation
Connections
Type DB-50 Fixed Circuit Breaker Outline Dimensions and Mounting Details
Part 3 - Maintenance
Pole Unit
Contacts
Maintenance of Contacts
Operating Mechanism
Cross-Sectional View of Type DB-50 Circuit Breaker
Cross-Sectional View of Series Overcurrent Tripping Device
With Long Delay and Instantaneous Elements
Tripping Characteristics of Standard Series Overcurrent
Tripping Device with Long Delay and Instantaneous
Tripping Characteristics of Selective Series Overcurrent
Tripping Characteristics of Special Series Overcurrent
Closing Solenoid
Control Relay
Shunt Trip Attachment
Undervoltage Trip Attachment
Undervoltage Time Delay Attachment
Reverse Current Trip Attachment
Undervoltage Trip Attachment - Construction Details
Field Discharge Switch
Auxiliary Switch
Electric Lockout Attachment
Breaker
Field Discharge Switch - Construction Details
Auxiliary Switch - Construction Details
Alarm Switch Attachment - Construction Details
Electric Lockout Attachment - Construction Details
Rectifier Unit for A-C Electric Lockout Attachment
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Summary of Contents for Westinghouse DB-50
Page 1
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Page 2: Table Of Contents
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Page 3
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Page 4
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Page 5: Part 1 - Receiving, Handling, And Storing
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Page 6: Part 2 - Installation
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Page 9: Part 3 - Maintenance
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Page 10
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Page 11: Cross-Sectional View Of Type Db-50 Circuit Breaker
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Page 12
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Page 14
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Page 15: Cross-Sectional View Of Series Overcurrent Tripping Device
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Page 16
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Page 17: Tripping Characteristics Of Standard Series Overcurrent
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Page 18: Tripping Characteristics Of Selective Series Overcurrent
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Page 19: Tripping Characteristics Of Special Series Overcurrent
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Page 20
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Page 21
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Page 22
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Page 23
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Page 24
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Page 25: Closing Solenoid
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Page 26: Shunt Trip Attachment
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Page 27: Undervoltage Trip Attachment
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Page 28: Field Discharge Switch
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Page 29
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Page 30: Auxiliary Switch
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Page 31: Breaker
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Page 32: Alarm Switch Attachment - Construction Details
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Page 34: Rectifier Unit For A-C Electric Lockout Attachment
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Page 35
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Page 36
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Page 37
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Page 38
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Page 39
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Page 40
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This manual is also suitable for:
Dbf-16
Dbl-50
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