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Siemens RL Instruction Manual

Low voltage circuit breakers
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  • Page 2 It does not relieve the user of responsibility to use sound practices in application, installation, operation, and maintenance of the equipment purchased. Siemens reserves the right to make changes in the specifications shown herein or to make improvements at any time without notice or obligations.
  • Page 3: Table Of Contents

    Auxiliary Switch Group ....43 Figure 1 8 Contacts RL-800 thru RL-2000 ..33 Figure 30 Optional Bell Alarm Switch Group ..44 Figure 1 9 Operator .
  • Page 4 Optional Devices Page23 Operation Counter Note: Pick-up and drop-out are individually adjustable. Time delay is adjustable from to 3 seconds (maximum 2 This option consists of a mechanically operated counter with seconds on 24 VDC version). a bracket that mounts at the bottom of the breaker mounted auxiliary switch.
  • Page 5 Fuse Carriage 3. Remove the safety barriers of the fuse carriage to allow 5.Replace the trigger fuses. Reconnect the two wires to the top of each fuse terminal, and replace the safety barriers access to the main power fuses. Disconnect the two small (No.
  • Page 6 Fuse Carriage T esting Open Fuse Trip Attachment ment is indicated by movement of its reset handle to a horizontal position. The open fuse trip attachment is operated by the voltage developed across the open fuse. This voltage is applied to a The breaker-mounted open-fuse trip attachment holds the transformer and rectifier combination.
  • Page 7 Never lift a circuit breaker or fuse carriage Fuses above an area where ersonnel are located. Only special purpose fuses per Siemens drawing number 71-142-200 can be used with the circuit breaker /fuse carriage 1. Take the key for the FUSE CARRIAGE from its associated combination.
  • Page 8 Description The fuse carriages are provided with open-fuse sensors The basic RL -3200 unfused circuit breaker has a maximum connected to the open-fuse trip attachment which is mounted continuous current rating of 3200 amperes, and an interrup­ on the circuit breaker. This device opens the circuit breaker tion rating of 65,000 amps symmetrical at 254,508 or 635 VAC when one or more of the current-limiting fuses open.
  • Page 9 Fuse Functi ons Open Fuse Trip Device ( Used o n RLF-3200 and RLF-4000 Only) [/J-22 --<-- 2 0 13 9 11 4 Trigger Fuse Ass e mbly ( For All Circuit Breakers with Integrally Mounted CL Fuses) 3 12 5 18 15 14 Figure 9.
  • Page 10 "let-thru" current downstream of their installation. The On the small breakers, this plunger operates arm (3) which C.L. fuses used with the RL series of circuit breakers are "J" moves the latch (12), releasing the spring-loaded lever (4).
  • Page 11: Part Number

    Parts Description & Overhaul Lubrication Contact bar hinge assembly Primary disconnect fingers, grounding contact Wipe clean and apply a film of Siemens contact lubricant ( 1) in a thin layer (approximately thick) Secondary disconnect fingers 1/ 32 Rubbing surfaces of main...
  • Page 12 Maintenance Switches (For Electrically Operated Breakers) (See Figures 7a-7c) Motor Cutoff Figure7a. Figure 7c. Positon 3. Springs Charged; Motor Stopped. Position 1. Springs Discharged; Motor in Run Position. ( Note that Figures 7 a-7c are depicted as v iewed from below) The springs have reached charged position.
  • Page 13 SG-31 38 for t he information on t est ing t he static t ripping correct polarit y relationship. system on a circuit breaker. Inside 81 RL-3200 RL-4000 56 56 54 Figure 6. Contact Assembly...
  • Page 14 Maintenance tightening the nuts agai nst the stop washer (1 09}, the two nuts correctly positioning these springs, the upper and lower 30), (110) should be locked against each other. primary disconnects (168 Figure 16, Page may be removed from each phase and the circuit breaker tipped to During maintenance inspections, the following items should rest on the ends of connectors (37) and ( 49).
  • Page 15 14. Test the tripping system, using an appropriate test set, to ensure that the arc chutes do not interfere with circuit such as the Siemens Portable Static Trip Set, model breaker operation. PTS-4. Refer to "Static Trip Ill Information and Instruction Guide', SG-3118 and "Portable Test Set Instructions',...
  • Page 16 A �y circuit breaker which has interrupted a heavy fault current should be inspected accordi,-,g to the recommenced procedure for maintenance and lubrication. 1991. "LM" indica:cs Low Maintenance RL Breaker produced beginning June, • SIEMENS breaker. For insulated parts. use a clean cloth saturated with a non-toxic cleaner.
  • Page 17 · heavy fault current. cated with a coating of Siemens contact l ubricant. 1 5- 1 7 1 - 370-002. I f d u st has accumulated, disassembly may be necessary to clean and rel u bricate these points. See Contact DANG ER Replacement.
  • Page 18 O peration clear. This releases the motor cut-off switch (MCO). When the 4. To withdraw the breaker from the CONNECTED position, MCO switch opens, the motor stops, and the closing coil rotate the racking screw counterclockwise. circuit is set up through one side of the MCO switch. 5.
  • Page 19 O peration . . . Control Switch­ a ..Aux. Switch­ CC ..Circuit Breaker Closing Coil Close Contact Open when Breaker CST ..Control Switch­ is Open TC .
  • Page 20 Operation "A" "8" Detail Detail "C" Detail 2 c · Ircuit Figure •...
  • Page 21 O peration riptio n 7. Close the compartment door and secure door latch(s) prior to racking the circuit breaker to or from the CON­ The continuous current and interrupting ratings of the circuit NECTED position. Also close and latch the door prior to breakers are as shown on the circuit breaker rating labeL closing the circuit breaker when i n the CONNECTED The circuit breakers are also available with integrally mounted...
  • Page 22 I nstal lation B) Carefully raise circuit breaker and move into posi­ A) Attach liftin g bar assembly to circuit breaker as tion above fulfy extended rails. shown above. Screw locking screws throug h circuit breaker side plates and lifting plates. C) Carefully begin lowering circuit breaker onto rails.
  • Page 23 Instal l ation breaker and move t he racking mechanism to the D IS­ of the circuit breaker operat ing characteristics before placing t he circuit breaker in service. Make sure circuits CONNECTED posit ion. are not energized. To prepare circuit breaker for insertion into the cubicle, follow steps A-D of Figure 1 on Page 5.
  • Page 24 Introduction sw1tchgear space heaters should be energized. Type RL Low Voltage AC Power Circ uit Breakers may be furnished for mounting in any one of three ways: ( 1) in metal­ General enclosed switc hgear of the drawout type;...
  • Page 25 Introd uction and Safety Introduction Signal Words The RL family of low voltage circuit breakers is designed t o The signal words "Danger•, "Warning• and "Caution• used meet all t he applicable ANSI, NEMA AND IEEE standards. in t his manual indicate t he degree of hazard t hat may be Successful application and operat ion of this equipment encountered by t he user.
  • Page 26 ..Service Conditions and Maintenance Intervals Maintenance Closing Device Lubrication Elect rically Operated lnterlok . 23 Recommended Annual RL Circuit Undervoltage Trip Device Option Breaker Inspect ion Procedure Latch Check Switch Recommended RL Breaker Stat ic Trip I l l...
  • Page 27: Figures 1 4 Rl Breaker Assembly (Part 1)

    1 61 1 56 1 56 1 58 1 29 Racking Block 1 54 1 39 1 53 Racking Position Stop for RL- 3200 thru RLE- 4000 1 55 1 55 Fused Breaker Figure 14 RL Breaker Assembly (Part 1)
  • Page 28: Figure

    Open Fuse Trip ..1 8-399-796-501 200A Open Fuse Trip ..1 8-399-805-501 RL -3200 & RL -4000 Spring ... . 1 8-657-434-1 69 Arc Chute .
  • Page 29: Figure

    Parts Upper Cont. Typical R L-2000 4 5 4 5 Figure 1 5 R L Breaker Assembly (Part 2)
  • Page 30: Figure

    RL-800, RLE-800 Upper Cont. Assy . . . 1 8-732-791 -535 RL-2000 , RLE-2000 ..& RL- 1 600 Stationary Apron 1 8-732-790-537 RLJ-800 Upper Cont. Assy. . . 1 8-732-79 1 -536 RL-2000, RLE-2000 .
  • Page 31: Figure

    1 74 1 81 1 84 R L-3200 & R L-4000 O NLY 1 82 1 44 233 Typical 2 2 0 RL-2000 1 07 1 06 1 0 8 1 0 1 1 85 1 78 1 00 . ---...
  • Page 32: Figure

    Guard ... . 1 8-748-962-001 1 03 Retainer ..15-171 -399-01 2 RL-800 thru RL-1 600 Screw ... . 00-615-641-910 1 03A Retainer .
  • Page 33: Figure 1 7 Contacts Rl

    Parts 1 47 1 49 1 49 RL-3200 RL-4000, RLE-4000 Figure 17 Contacts RL-3200 and RL-4000 to Figure 17 Refer Item Description Part Number Usage Item Description Usage Part Number Washer Spring Seat ..1 8-657-822-1 7 1...
  • Page 34: Figure

    5 3A ----' '' n1 ""- 5 3A 63A 63A 62 64A RL-2000 RLE-800 RL-1 600 RU-800 RL-800 RLE-2000 Lower Contact Detail Figure 18 Contacts RL -800 to RL -2000 Refer to Figure 1 8 Item Description Usage Item Part Number Description Part Number Usage Spring Seat .
  • Page 35: Figure 1 9 Operator

    Parts 46 2 1 25 1 24 •a 1 1 8 1 1 9 View E-E 7 2 7 3 76 75 78 79 55 1 00 56 1 01 1 37 1 35 1 36 1 02 1 03 1 04 1 05 66 60 1 06 67 61...
  • Page 36: Figure

    Pawl ... . . 1 �5�24-1 23 Spring Hanger ..1 8-658-1 1 0-292 RL�OO to RL-2000 Stop Block ..1 �7-768-039 Spring Hanger .
  • Page 37: Figure

    Parts fi - �- - - - 1, :: r> i ) : � - -� - - - -: - - _ _ 1 67 1 66 1 69 1 74 1 75 1 73 1 69 1 74 Front View Front View A.C.
  • Page 38: Figure 2 1 Close Solenoid Group

    Parts 1 92 1 9 1 Y Relay 1 93 206 Bracket Motor 1 86 1 87 Figure 22A. "Y" 1 89 Anti-Pump Relay (Old Style) 1 90 2 1 0 2 1 1 2 1 2 2 1 3 2 1 5 2 1 6 Figure 21 .
  • Page 39: Figure 23 Shunt Tri P Group

    Parts Figure 23 Shunt Trip Group •• The following item numbers refer to Figure 23, and are common parts used on all models. Item Description Part Number Usage Item Description Part Number Usage 1 4 1 Solenoid 48VDC Pushrod ..1 8-657-768-036 and 1 20VAC .
  • Page 40: Figure 24 Blown Fuse Trip

    Parts 3 1 2 1 0 Figure 24. Blown Fuse Trip Figure Open Fuse Indicator Assembly 1 8-399-805-501 The following items refer to Figure 24. Applies to RLF-3200 The following items refer to Figures 25, and are RLF-4000 fused models. common to all fuse c arriages: Item Description...
  • Page 41 Parts [ · Plan View Front View View "A- A" (Setting) Tighten Item 17 Figure Trigger Fuse Assembly 1 8-399-796-501 The following items refer to Figure 26, Applies to RLF-800, RLF-1 600 and RLF-2000. Item Description Usage Item Part Number Description Part Number Usage...
  • Page 42 1 8-398-790-501 3 1 0 Block 15-1 7 1 -051 -009 Stationary RL -BOOS Rivet 1 8-65B-1 1 0-0� ... . • . . . • ..
  • Page 43: Undervoltage Trip

    Parts 28. Undervoltage Trip Figure item Complete U ndervoltage Device The following numbers refer to Figure 1 8-474-540-(Pius No. from Table) Item Description Part Number Usage Pickup UV Circuit Board . . 1 8-802-1 70-501 125 V Time Dropout Rated UV Circuit Board .
  • Page 44: Auxiliary Switch Group

    Parts Front View Cover Removed Figure Auxiliary Switch Group Single Switch Assembly 1 8-398-788-501 Dual Switch Assembly 1 8-398-788-506 Triple Switch Assembly 1 8-8 1 7-1 75-500 Contacts are adjustable. Undervoltage Trip not available The following item numbers refer to Figure and are with Triple Switch Version.
  • Page 45: Optional Bell Alarm Switch Group

    Parts Plan View 22 9 23 1 23 2 2 1 1 21 5 Figure Optional Bell Alarm Switch Group The following item numbers refer to 30, and are Single Switch Assembly F igure 1 8-392-075-505 common parts used on all models. Assembly Dual Switch 1 8-392-075-506...
  • Page 46: Static Tri P Group

    Parts 374A r ::;:. - - ;: - .., I '� · ··- 346 357 � 302 313 324 347 303 314 325 346 37 9 304 315 326 349 305 316 327 350 306 317 328 351 307 318 329 352 See Enlarged 308 319...
  • Page 47: Tri Pping Transformer Group

    1 200A ... . 6 1 -300-053-507 RL-1 600 to RLE-2000 2000 A ... . . 6 1 -300 - 053-51 5...
  • Page 48: Tapped Sensor Connections

    Screw 10-32 ..00-6 1 5-649-21 6 2000 A ... . 61 -300-059-509 RL-2QOO. R LE-2000 Trip Transformer Wire #18 ..00-557-286-003 4 1 1 Tyrap .
  • Page 49: Communi Cation Options

    Parts "C" Version Static Trip Ill See Separate List Figure Communications Options The following item numbers refer to Figure and are common parts used on all models. (Ref. 1 8-398-289-551/-565) Item Description Part Number Usage Item Part Number Description Usage Switch 00-000-466-n1 Screw...
  • Page 50: Integrally Fused Breakers

    Parts ���� � · � � � � �: 21 2 21 2 2 1 8 208A 207A _212 2088 Figure Integrally Fused Breakers The following items refer to Figure Used on RLF-800 thru RLF-2000 Breakers. Item Description Part Number Usage Item Description...
  • Page 51: Fuse Carriage Outline

    Parts Fuse Items 1 01 Thru 1 06 Top View, Rear Panel 85 78 Plan View of Racking Screw Side View Figure 36. Fuse Carriage Outline...
  • Page 52: Key Interlock Mounting

    Parts 93"Lo Leave Free Gap From IT .14 Side Vie w Front View Figure 37 Key I nterlock Mounting The following items refer to Figures 36 & 37, and are common to RFC-3200A and RFC-4000A fuse carriages (except as noted): (Ref.
  • Page 53: Open Fuse Sensor

    Parts Schematic - Open Fuse Sensor Red Lead Sec. 1 N 4006 Disconnect 1A SOOV Black Lead Fuse Carriage Back Panel Figure Open Fuse Sensor The following items refer to Figures and are common to all fuse carriages: Item Description Part Number Usage Item...
  • Page 54 & Automation , Inc. Electrical Apparatus Division P.O. Box 29503 Raleigh, NC 27626 (91 9) 365-2200 © & 1 993 Siemens Energy Automation. Inc. Bulletin SG-3068-02 (Supercedes SG-3068-0 1 ) 2M1 093TD Printed in U.S.A. Siemens is a registered trademark of Siemens AG...