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.
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 .
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.
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.
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.
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.
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.
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.
"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).
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...
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.
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...
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).
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',...
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.
· 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.
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.
O peration . . . Control Switch a ..Aux. Switch CC ..Circuit Breaker Closing Coil Close Contact Open when Breaker CST ..Control Switch is Open TC .
Operation "A" "8" Detail Detail "C" Detail 2 c · Ircuit Figure •...
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...
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.
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.
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;...
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.
..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...
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...
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 .
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...
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...
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 .
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.
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...
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...
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.
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...