SB Encased Systems Breakers - Peterson Electric …

1 SB Encased Systems Breakers 800A 5000A Frame Ratings Information and Instruction GuideIMPORTANTThe information contained herein is general in nature and not intended for spe-cific application purposes. It does not relieve the user of responsibility to usesound practices in application, installation, operation, and maintenance of theequipment purchased. Siemens reserves the right to make changes in the spec-ifications shown herein or to make improvements at any time without notice orobligations. Should a conflict arise between the general information contained inthis publication and the contents of drawings or supplementary material or both,the latter shall take *Authorized and qualified personnel For the purpose of this manual a qualified person is one who is familiar with theinstallation, construction or operation of the equipment and the hazardsinvolved.

2 In addition, he has the following qualifications:(a)is trained and authorized to de-energize, clear, ground, and tag circuitsand equipment in accordance with established safety practices.(b)is trained in the correct care and use of protective equipment such as rub-ber gloves, hard hat, safety glasses or face shields, flash clothing, etc., inaccordance with established safety practices.(c)is trained in rendering first instructions do not purport to cover all details or variations in equipment,nor to provide for every possible contingency to be met in connection withinstallation, operation, or maintenance. Should further information be desired orshould particular problems arise which are not covered sufficiently for the pur-chaser s purposes, the matter should be referred to the local sales office, listedon back of this instruction contents of this instruction manual should not become part of or modifyany prior or existing agreement, commitment or relationship.

3 The sales con-tract contains the entire obligation of Siemens Energy & Automation, Inc. Thewarranty contained in the contract between the parties is the sole warranty ofSiemens Energy & Automation, Inc. Any statements contained herein do notcreate new warranties or modify the existing breaker indicators shown in this booklet are for illustration purposes Breakers are to be installed in Discharged and Open positions only. 1 SB Encased Systems Breakers Table of Contents General Information2-5 Description6-7 Stationary and Moveable Drawout Elements6 Electronic Trip Units for Siemens SB Encased Breakers7 Frame Installation Instructions8-10 Stationary Drawout Element8 Movable Drawout Element9 Fixed Mounted10 Installation Instructions11-14 Electronic Trip Unit11 Rating Plug13 Operating Instructions15-25 Operating the SB Encased Systems Breaker15 Manipulating the Moveable Drawout Element18 Internal Accessories26-30 Preliminary Installation Procedures26 Preparation for Installation of Electric Motor Operator28 External Accessories 31-34 Siemens ACCESS Communications31 Universal Test Kit (TS-31)

4 34 Outline Dimension Drawings35-54 1200A Stationary Drawout Element351200A Moveable Drawout371200A Fixed-Mounted392000A Stationary Drawout412000A Moveable Drawout432000A Fixed-Mounted453200A, 4000A, and 5000A Stationary Drawout473200A, 4000A, and 5000A Moveable Drawout493200A Fixed-Mounted514000A and 5000A Fixed-Mounted53 Electrical Schematics55-60 Accessory Ratings61 Solenoid Coil Resistances62 Primary Current Injection and Field Testing for SB Breakers62 NOTE: Information related to specific frame types and catalog numbers does not guarantee product availability. Technical informationmay change due to product revisions. Consult Siemens sales office concerning any variation of information contained herein. 2 General Information Introduction Siemens SB Encased Systems Breakers bridge the perfor-mance gap between Molded Case Circuit Breakers (MCCB)and Low Voltage Power Circuit Breakers (LVPCB).

5 Modern computer-aided design and manufacturing tools wereused to effectively blend the technologies of the MCCB andLVPCB. This combination has resulted in a family of encasedsystems circuit Breakers that exhibit the most desirable char-acteristics of each of the parent technologies. Included inthese characteristics are high interrupting capacities, highwithstand capabilities (magnetic stress), high-shorttimecapabilities (overcurrent heating), and high mechanical andelectrical endurances without for SB Breakers include main, tie, feeder, andemergency source Breakers in industrial plants, large commer-cial complexes, and medical and health care facilities. The circuitbreakers are constructed for either fixed or drawout can be physically grouped in central distribution switch-boards or used separately in stand-alone SB breaker is equipped with a two-step stored energymechanism for closing and opening the breaker contacts.

6 Aftera closing operation, sufficient energy is retained in the two-stepstored energy mechanism to perform the tripping function. Themechanism may be charged manually with the integrated low-force charging handle or electrically with the optional electricmotor operator. Pushbuttons, switches, and color-coded indica-tors allow for easy close and open operations . Siemens Encased Systems BreakersOne piece moldedbase and cover forstructural key operatingcontrols groupedin central dimensions allow 6-highmounting of 800 and 1200 amperebreakers and 4-high mounting of2000 ampere Breakers in a standardswitchboard or exceeds applicableUL and CSA charging handleallows the user to easilycharge the mechanismfrom any close buttonand charging handleare line/load bus for2000 through 5000 ampere trip unit keyed label indicatesa choice of three holes are outboardfor ease of access and areidentical for 400 through2000 ampere frames.

7 3 General Information Frame Sizes and Frame Ampere Ratings SB Breakers come in four frame sizes with MAX ratingsranging from 400A to 5000A. All frames are rated for 100%continuous operation. Frame Size and Rating CombinationsRating Plugs SB Breakers use interchangeable rating plugs. The rating plugampere values (I n ) allows the effective ampere rating of thebreaker to be customized for specific applications. A label onthe front of the breaker identifies the rating plugs that may beused with that particular breaker . Available Rating PlugsInterruption and Short Time Ratings Three short circuit interruption ratings are available for specificapplications. The interruption ratings and short-time ratings aregiven in the following table. UL 489 Interruption and Short Time RatingsIEC 947-2 Ratings (SBS Units Only) The interruption rating of the SB breaker is specified on thefront cover label and is further identified by a color bar at thetop left of the breaker label.

8 Blue indicates the alternate or the lowest interrupting cate-gory (1200 2000A frames). Black indicates the standard inter-rupting rating. Red indicates the highest available interruptingrating for the SB breaker . Overcurrent Protection Configurations Siemens Electronic Trip Units for SB Breakers are available inseven overcurrent protection configurations to meet specificprotection requirements. Six trip units come equipped withAdjustable Continuous Current and Long Time Delay func-tions. Optional protection configurations are: Protection ConfigurationIdentifier Long Time/Short TimeLSLong Time/InstantaneousLILong Time/Short Time/InstantaneousLSILong Time/Short Time/Ground FaultLSGLong Time/Instantaneous/Ground FaultLIGLong/Short Time/Instantaneous/Ground FaultLSIGF ixed Long Time/InstantaneousMLIThe trip unit that may be used with a specific circuit breaker isidentified on the front cover label.

9 RMS Current Sensing The trip unit executes the breaker s overcurrent fault protec-tion functions. Its adjustment flexibility allows you to accom-modate load changes and other protection requirements whilestill assuring optimum coordination. A standard trip unit feature is RMS current sensing. RMSsensing measures the true heating potential of the currentwaveform. It allows for more accurate overcurrent protectionand eliminates nuisance tripping due to harmonic distortion ofthe current waveform. breaker Frame Ampere Size breaker MAX Ampere Rating 1200 Amperes(SBA, SBS only)400, 800, 12002000 Amperes800 (SBH only), 1200, 1600, 20003200 Amperes2500, 32005000 Amperes2500, 3200, 4000, 5000 MAX RatingRating Plug Ampere Values (I n ) 400200, 225, 250, 300, 350, 400800400, 450, 500, 600, 700, 8001200600, 700, 800, 1000, 12001600800, 1000, 1200, 160020001000, 1200, 1600, 200025001600, 2000, 250032001600, 2000, 2500, 3000, 320040002000, 2500, 3000, 3200, 400050002500, 3000, 3200, 4000, 5000 breaker Frame Size 1200200032005000 Type SBA Alternative Interrupt Rating (Blue Label) 240 V AC 480 V AC 600 V AC65 kA 65 kA 42 kA85 kA 65 kA 50kA Type SBS Standard Interrupt Rating (Black Label)

10 240 V AC 480 V AC 600 V AC100 kA 100 kA 50 kA100 kA 100 kA 65 kA150 kA 100 kA 85 kA150 kA 100 kA 85 kA Type SBH High Interrupt Rating (Red Label) 240 V AC480 V AC 600 V AC 200 kA 150 kA 100 kA200 kA 150 kA 100 kA200 kA 150 kA 100 kA Short Time Rating (t= seconds) 25 kA35 kA50 kA65 kA Voltage 50/60 HzFrame Sizes 1200200032005000 Type SBS Standard Interrupt Rating (Black Label) 415 V AC lcu lcslcw100 kA 100 kA 25 kA100 kA 100 kA 35 kA100 kA 100 kA 50 kA100 kA 100 kA 65 kA690 V AClcu lcslcw65 kA 65 kA25 kA65 kA 65 kA 35 kA65 kA 65 kA 50 kA65 kA 65 kA 65 kA 4 General Information NOTE: For more information on other standard andoptional trip unit features, see Siemens Electronic TripUnits for SB Encased Systems Breakers Information andInstruction guide Bulletin IPIM-2203 and the Sentron Sys-tems breaker Energy Communicating Trip UnitInformation and Instruction guide Bulletin SB Breakers incorporate several installation, operation,and safety features.