Eaton SBN-508 Instructions For Installation, Operation And Maintenance page 3

Instructions for Installation, Operation and
Maintenance of Magnum SB Insulated Case
Low Voltage Power Circuit Breakers
Figures
Figure 6 . Rear View Showing Current Sensor Rating
Through Viewing Window . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 7 . One Side of Drawout Circuit Breaker Properly
Seated on Extension Rail . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 8 . Cassette Rejection Interlock Pin Positioning/
Installation for Standard and Double-wide Frames . . . . . . 12
Figure 9 . Cassette Rejection Interlock Bracket Location/
Installation for Narrow Frames . . . . . . . . . . . . . . . . . . . . . 12
Figure 10 . Remove Position . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 11 . Disconnect Position . . . . . . . . . . . . . . . . . . . . . . 13
Figure 12 . Test Position . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 13 . Connect Position . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 14 . Cassette Label Showing Disconnected, Test and
Connected Position of Recessed Cover . . . . . . . . . . . . . . 14
Figure 15 . Levering Position Indication . . . . . . . . . . . . . . . 15
Figure 16 . Typical Fixed Magnum SB Circuit Breaker . . . . 15
Figure 17 . Typical Drawout Circuit Breaker Features
(Front and Rear Views) . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 18 . Typical SBS/SBSE Fixed Circuit Breaker Features
(Front and Rear Views) . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 19 . Typical Double-wide SBS/SBSE Standard Frame
Fixed Circuit Breaker Features (Front and Rear Views) . . . 18
Figure 20 . Typical Magnum SB Drawout Circuit
Breaker Front Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 21 . Typical Magnum Construction (Right Side View) . 20
Figure 22 . Features of Magnum Moving
Conductor Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 23 . Narrow Frame (8-finger) Moving
Conductor Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 24 . SBSE Moving Contact Assembly . . . . . . . . . . 21
Figure 25 . Standard Frame (12-finger) Moving Conductor
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 26 . Parital Cross-Sectional View (Shown in
Closed Position) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 27 . Typical Electrically Operated Drawout Circuit
Breaker with Front Cover Removed . . . . . . . . . . . . . . . . . 22
Figure 28 . Circuit Breaker Closing Springs Being
Manually Charged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 29 . Electrical Motor Operator to Charge Closing
Spring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 30 . Cross Section of Conductor and Arc
Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 31 . Magnum Arc Plate Assembly . . . . . . . . . . . . . . 24
Figure 32 . Integral Arc Runner as Viewed From Top
of Arc Chamber (Arc Chute Removed and Circuit
Breaker Closed) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Page
Figures
Figure 33 . Pictorial Diagram of Typical Current Sensing,
Processing and Tripping System . . . . . . . . . . . . . . . . . . . . 25
Figure 34 . Digitrip RMS 1150 Programmable Trip Unit
Installed in Magnum SB Circuit Breaker . . . . . . . . . . . . . . 26
Figure 35 . Hand Held Tester . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 36 . Replaceable Current Sensors Shown with
Bottom Adapters and Cover Plate Removed . . . . . . . . . . . 27
Figure 37 . Line Side Voltage Tap for 1150 Trip Unit . . . . . . . 28
Figure 38 . Top View Secondary Connectors . . . . . . . . . . . 28
Figure 39 . Secondary Connector Protective Hood . . . . . . 28
Figure 40 . Typical Cassette Mounted Secondary Wiring . . 29
Figure 41 . AMP Secondary Wiring Removal Tool . . . . . . . . 29
Figure 42 . Connection Diagram for Narrow and Standard
Frame with Digitrip 520 and 520M . . . . . . . . . . . . . . . . . . 30
Figure 43 . Connection Diagram for Narrow and Standard
Frame with Digitrip 520MC . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 44 . Connection Diagram for Narrow and Standard
Frame with Digitrip 1150 . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 45 . Connection Diagram for Standard SBSE Frame
with Digitrip 520 and 520M . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 46 . Connection Diagram for Standard SBSE Frame
with Digitrip 520MC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 47 . Connection Diagram for Standard SBSE Frame
with Digitrip 1150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 48 . Connection Diagram for Double-wide Frame
(except SBSE) with Digitrip 520 and 520M with ABCABC
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 49 . Connection Diagram for Double-wide Frame
(except SBSE) with Digitrip 520MC with ABCABC
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 50 . Connection Diagram for Double-wide Frame (except
SBSE) with Digitrip 1150 with ABCABC Configuration . . . 38
Figure 51 . Connection Diagram for Double-wide Frame
(except SBSE) with Digitrip 520 and 520M with AABBCC
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 52 . Connection Diagram for Double-wide Frame
(except SBSE) with Digitrip 520MC with AABBCC
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 53 . Connection Diagram for Double-wide Frame (except
SBSE) with Digitrip 1150 with AABBCC Configuration . . . 41
Figure 54 . Connection Diagram for SBSE Double-wide Frame
with Digitrip 520 and 520M with ABCABC Configuration . 42
Figure 55 . Connection Diagram for SBSE Double-wide Frame
with Digitrip 520MC with ABCABC Configuration . . . . . . 43
Figure 56 . Connection Diagram for SBSE Double-wide Frame
with Digitrip 1150 with ABCABC Configuration . . . . . . . . . 44
Instructional Leaflet
EATON CORPORATION www.eaton.com
IB2C12063H03
Effective March 2012
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