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Effective December 2015 IB2C12060H12 …

Instructional Booklet IB2C12060H12 Effective December 2015 Supersedes February 2015 Magnum low voltage power circuit breakers user manual (DS, DC, DSX, DSL, and MDE)For use in ANSI/UL applicationsDouble-wide frameStandard frameNarrow frameDouble narrow frame2 Instructional Booklet IB2C12060H12 Effective December 2015 Magnum low voltage power circuit breakers user manual (DS, DC, DSX, DSL, and MDE) EATON of tablesDescription PageContentsDescription PagePurpose ..5 Safety ..5 Section 1: Introduction ..5 General information ..5 Safety features .. 6 Safety practices ..6 Qualified personnel ..7 Other publications and documentation ..7 Section 2: Receiving, handling, and installation ..8 General information ..8 Suggested tools ..8 Unpacking the circuit breaker.

Instructional Booklet IB2C12060H12 Effective December 2015 Supersedes February 2015 Magnum low voltage power circuit breakers user manual (DS, DC, DSX, DSL, and MDE)

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Transcription of Effective December 2015 IB2C12060H12 …

1 Instructional Booklet IB2C12060H12 Effective December 2015 Supersedes February 2015 Magnum low voltage power circuit breakers user manual (DS, DC, DSX, DSL, and MDE)For use in ANSI/UL applicationsDouble-wide frameStandard frameNarrow frameDouble narrow frame2 Instructional Booklet IB2C12060H12 Effective December 2015 Magnum low voltage power circuit breakers user manual (DS, DC, DSX, DSL, and MDE) EATON of tablesDescription PageContentsDescription PagePurpose ..5 Safety ..5 Section 1: Introduction ..5 General information ..5 Safety features .. 6 Safety practices ..6 Qualified personnel ..7 Other publications and documentation ..7 Section 2: Receiving, handling, and installation ..8 General information ..8 Suggested tools ..8 Unpacking the circuit breaker.

2 8 Lifting circuit breaker ..9 Circuit breaker inspection ..10 Installing the drawout circuit breaker ..10 Fixed circuit breaker ..14 Circuit breaker operation ..15 Section 3: Circuit breaker description and operation ..15 Introduction ..15 Basic circuit breaker assembly ..19 Pole units ..19 Operating mechanism ..21 Arc chambers ..22 Electronic tripping system ..23 Accessory devices ..26 MDSL limiters/blown limiter indication ..31 Section 4: Master connection diagrams ..33 Section 5: Drawout circuit breaker and cassette ..50 General ..50 Drawout circuit breaker dimensions ..53 Drawout cassette dimensions ..53 Section 6: Fixed circuit breaker ..54 General ..54 Fixed circuit breaker dimensions ..54 Section 7: Importance of maintenance ..54 General ..54 Safety precautions ..54 General cleaning recommendations ..55 Functional tests ..55 Manual operation functional test ..55 Electrical operation functional test.

3 56 Trip unit overload functional test` ..56 Maintenance schedule ..57 Normal operating conditions ..57 Adjusting maintenance frequency ..57 Inspection procedures ..58 Arc chute inspection ..58 Primary contact inspection ..59 Internal mechanism inspection ..60 Primary disconnect inspection ..59 Secondary disconnect inspection ..62 Interlocks inspection ..63 Troubleshooting ..64 Section 8: Renewal parts ..68 General ..68 Disclaimer of warranties and limitation of liability ..68 Table 1 . Magnum DS/DSX ratings at 240, 480, 600 V ..7 Table 2 . Magnum DC switch ratings .. 7 Table 3 . Magnum DSL ratings at 600 V and below ..8 Table 4 . Basic circuit breaker weights ..9 Table 5 . DC switch weights ..10 Table 6 . Magnum Digitrip trip units ..23 Table 7 . Magnum current sensors and matching rating plugs ..24 Table 8 . Shunt trip ratings ..26 Table 9 . Continuous duty shunt trip ..26 Table 10 . Spring release ratings.

4 26 Table 11 . Undervoltage release ..27 Table 12 . Auxiliary switch, overcurrent trip switch, and cell switch contact ratings ..27 Table 13 . Motor operator ..28 Table 14 . MDSL integral current limiter selection (for optimal performance and highest fault levels) ..32 Table 15 . Normal operating conditions ..57 Table 16 . Normal maintenance frequency ..57 Table 17 . Increased frequency conditions ..57 Table 18 . Altitude rating factors ..57 Table 19 . Pre-inspection conditions ..58 Table 20 . Pre-inspection conditions ..59 Table 21 . Pre-inspection conditions ..60 Table 22 . Magnum breaker torque list ..60 Table 23 . Greases used on Magnum ..60 Table 24 . Pre-inspection conditions ..62 Table 25 . Pre-inspection conditions ..62 Table 26 . Pre-inspection conditions ..63 Table 27 . Spring charging ..64 Table 28 . Contact closing ..64 Table 29 . Contact opening ..65 Table 30 . Levering-in/-out (drawout applications only).

5 653 Instructional Booklet IB2C12060H12 Effective December 2015 Magnum low voltage power circuit breakers user manual (DS, DC, DSX, DSL, and MDE) EATON of figuresDescription PageFigure 1 . Family of Magnum DS (MDS) low voltage power fixed and drawout circuit breakers (800 5000 A) .. 6 Figure 2 . Typical Magnum DS (MDS) nameplate .. 6 Figure 3 . Typical Magnum DS designation example .. 8 Figure 4 . Typical Magnum DSL designation example .. 8 Figure 5 . Typical Magnum DSL (MDSL) drawout circuit breaker with integral current limiters .. 8 Figure 6 . Shipping clamps for drawout circuit breaker .. 9 Figure 7 . Magnum DS circuit breaker with lifting yoke attached .. 9 Figure 8 . Rear view showing current sensor rating through viewing window.

6 10 Figure 9 . One side of drawout MDS/MDSX circuit breaker properly seated on extension rail ..11 Figure 10 . Cassette rejection interlock pin positioning/installation ..11 Figure 11 . Remove position ..12 Figure 12 . Disconnect position ..12 Figure 13 . TEST position ..13 Figure 14 . CONNECT position ..13 Figure 15 . Cassette label showing disconnected, test, and connected position of recessed cover ..14 Figure 16 . Levering position indication ..14 Figure 17 . Typical fixed Magnum DS circuit breaker ..15 Figure 18 . Typical MDS/MDSX drawout circuit breaker features (front and rear views) ..16 Figure 19 . Typical MDS/MDSX fixed circuit breaker features (front and rear views) (MDSX shown without required arc hood) ..16 Figure 20 . Typical MDSL drawout circuit breaker features (front and rear views) ..17 Figure 21 . Typical double-wide MDS/MDSX standard frame fixed circuit breaker features (front and rear views) (MDSX shown without required arc hood).

7 17 Figure 22 . Magnum DS/DSX drawout circuit breaker front cover ..18 Figure 23 . Typical Magnum construction (right side view) ..19 Figure 24 . Features of Magnum moving conductor assembly ..19 Figure 25 . Narrow frame (8-finger) moving conductor assembly ..20 Figure 26 . Standard frame DS (12-finger) moving conductor assembly ..20 Figure 27 . MDSX moving contact assembly ..20 Figure 28 . General partial cross-sectional view (shown in closed position) (not specific to any family/frame) ..20 Figure 29 . Typical electrically operated drawout MDS/MDSX circuit breaker with front cover removed ..21 Figure 30 . Circuit breaker closing springs being manually charged ..21 Figure 31 . Electrical motor operator to charge closing spring ..22 Figure 32 . Cross section of conductor and arc control system ..22 Figure 33 . Integral arc runner viewed from top of arc chamber (arc chute removed, circuit breaker closed).

8 22 Figure 34 . Magnum arc plate assembly ..23 Figure 35 . Magnum DSX arc chute ..23 Figure 36 . Pictorial diagram of typical current sensing, processing, and tripping system ..23 Figure 37 . Digitrip RMS 1150 programmable trip unit installed in Magnum DS circuit breaker ..24 Figure 38 . Hand-held tester ..24 Figure 39 . Replaceable current sensors shown with bottom adapters and cover plate removed ..25 Figure 40 . Line-side voltage tap for 1150 trip unit ..25 Figure 41 . Through-the-window electrical accessories ..26 Figure 42 . Shunt trip with cutoff switch ..26 Figure 43 . Shunt trip switch installed ..26 Figure 44 . Spring release with optional latch switch ..27 Figure 45 . Undervoltage release ..27 Figure 46 . Shunt trip, spring release, and undervoltage release installed ..27 Figure 47 . Auxiliary switch (2A/2B) ..28 Figure 48 . Mechanical trip indicator with associated overcurrent trip switch.

9 28 Figure 49 . Motor operator kit ..28 Figure 50 . Motor operator installed in narrow frame circuit breaker ..29 Figure 51 . Cover mounted key lock and operations counter ..29 Figure 52 . Cassette-mounted key lock ..29 Figure 53 . ON-OFF pushbutton lockable cover plate ..30 Figure 54 . Typical safety shutters in closed position ..30 Figure 55 . Typical safety shutters in open position ..30 Figure 56 . Cell switch (drawout position indicator) unmounted ..304 Instructional Booklet IB2C12060H12 Effective December 2015 Magnum low voltage power circuit breakers user manual (DS, DC, DSX, DSL, and MDE) EATON 57 . Cell switches mounted on cassette ..30 Figure 58 . Door escutcheon and gasket ..31 Figure 59 . IP55 waterproof cover ..31 Figure 60 . Cassette-mounted two-way cable interlock ..31 Figure 61 . Magnum DSL circuit breaker (side view) ..32 Figure 62 . Blown fuse indicator ..32 Figure 63 . Secondary connector protective hood.

10 33 Figure 64 . Top view secondary connectors ..33 Figure 65 . Typical cassette-mounted secondary wiring ..34 Figure 66 . AMP secondary wiring removal tool ..34 Figure 67 . Digitrip 520/520M/520MC standard and narrow (except 100 kA) frames (6D32315SH01) ..35 Figure 68 . Digitrip 520/520M narrow 100 kA frame (6D32315SH02) ..36 Figure 69 . MDSL Digitrip 520/520M with blown fuse trip (6D32373SH01) ..37 Figure 70 . Digitrip 520MC/ARMS standard and narrow (except 100 kA) frames (6D32315SH03) ..38 Figure 71 . Digitrip 520MC/ARMS narrow 100 kA frame (6D32315SH04) ..39 Figure 72 . MDSL Digitrip 520MC/ARMS with blown fuse trip (6D32373SH02) ..40 Figure 73 . Digitrip 520/520M/520MC double-narrow double-standard frame, ABCABC configuration (6D32320SH01) ..41 Figure 74 . Digitrip 520/520M/520MC double-narrow double-standard frame, AABBCC configuration (6D32320SH02) ..42 Figure 75 . Digitrip 520MC/ARMS double-narrow double-standard frame, ABCABC configuration (6D32320SH03).


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