Circuit Breaker Replacement Parts
Siemens / Siemens-Allis / Allis Chalmers
LA-4000B Renewal Parts
Click on part number for quote
| Description | Part Number |
|---|---|
| 1-10 Marking Strip | 71-141-895-001 |
| 11-20 Marking Strip | 71-141-895-002 |
| 21-30 Marking Strip | 71-141-895-003 |
| Angle, Glastic | 18-657-870-193 |
| Angle, L.H. | 18-657-822-182 |
| Angle, R.H. | 18-657-822-181 |
| Arc Chute | 18-398-789-502 |
| Arc Runner | 18-657-840-384 |
| Arm | 71-141-996-001 |
| Back-up Spring | 18-657-765-130 |
| Barrel Nut | 18-657-823-346 |
| Base | 71-240-535-001 |
| Base | 18-657-782-256 |
| Bearing | 15-171-399-030 |
| Bearing | 18-657-768-031 |
| Bearing | 71-141-995-001 |
| Bearing, .50 I.D. x 1.0 | 15-171-399-033 |
| Bearing, Needle, .375 x .875 x .562 | 00-813-109-037 |
| Block | 18-657-838-297 |
| Brace | 18-657-822-359 |
| Bracket | 18-727-742-001 |
| Bracket | 18-657-781-264 |
| Bracket | 18-726-894-501 |
| Bracket | 72-140-315-001 |
| Bracket | 18-727-742-001 |
| Bracket Assembly | 18-726-894-501 |
| Bracket, Actuator | 18-657-768-022 |
| Bracket, Interlock | 18-727-822-001 |
| Bumper | 18-657-854-169 |
| Bumper | 15-171-399-007 |
| Cam Follower | 18-657-768-026 |
| Cam Follower | 18-657-768-026 |
| Cam, spring Dump | 18-657-838-288 |
| Cam, Wind & Close | 18-724-492-001 |
| Cap. Bracket | 18-729-233-001 |
| Capacitor | 15-171-029-013 |
| Capacitor | 15-171-029-016 |
| Capacitor | 15-171-029-013 |
| Capscrew, .312-18 x 1.75 | 00-615-131-428 |
| Capscrew, Hex. Hd., .500-13 x 2.0 | 00-611-315-552 |
| Capscrew, Hex. Hd., 312-18UNC-2A x 1.00 | 00-611-315-422 |
| Capscrew, Hex. Hd., 312-18UNC-2A x 1.25 | 00-611-315-424 |
| Capscrew, Hex. Hd., 312-18UNC-2A x 1.5 | 00-611-315-426 |
| Capscrew, Hex. Hd., 312-18UNC-2A x 1.75 | 00-611-315-472 |
| Capscrew, Hex. Soc. Hd., 312-18 x 3.00 | 18-657-822-347 |
| Capscrew, Special, .375-24 x 2.44 | 18-657-822-333 |
| Capscrew. Hex. Hd. .375-16 x 2.50 | 00-611-315-478 |
| Case | 71-240-524-001 |
| Centering Washer | 14-105-442-001 |
| Channel | 18-727-844-001 |
| Charge Cam | 72-240-009-001 |
| Circuit Bd. | 18-395-370-502 |
| Circuit Bd. | 18-395-370-501 |
| Clip | 18-657-768-014 |
| Clip | 15-171-399-003 |
| Clip | 15-171-399-003 |
| Clip | 18-657-823-353 |
| Close Lever | 18-657-768-020 |
| Close Solenoid Switch, AC | 15-171-399-013 |
| Close Solenoid Switch, DC | 15-171-323-003 |
| Closing Cam | 18-724-493-001 |
| Collar | 72-140-028-002 |
| Contact | 18-727-825-002 |
| Contact | 18-727-825-001 |
| Contact | 71-142-096-001 |
| Contact | 71-141-994-001 |
| Contact Assembly | 18-727-833-501 |
| Contact Assembly, Arcing | 18-727-729-502 |
| Contact Assembly, Lower | 18-729-734-502 |
| Contact Assembly, Main | 18-727-729-501 |
| Contact Assembly, Upper | 18-729-735-502 |
| Cover | 18-657-822-165 |
| Cover | 18-393-691-001 |
| Cover | 18-395-033-001 |
| Cover | 18-395-033-002 |
| Cover | 18-657-822-165 |
| Cover Assembly, EO (Trip Guide Must) | 18-655-008-547 |
| Cover Assembly, MO (Be Added) | 18-655-008-548 |
| Cover EO Only | 18-657-803-006 |
| Decal, Charge Discharge | 18-657-800-116 |
| Decal, Close-open | 71-141-817-001 |
| Detail of Parts Assembly | 72-240-028-501 |
| Double Pole Doube Throw Switch | 18-392-075-504 |
| Double Throw Single Pole Switch | 18-392-075-504 |
| EI Stop Nut | 00-633-059-210 |
| Extension | 18-657-838-285 |
| Flag, Close | 18-728-500-505 |
| Flag, Discharge | 18-274-498-001 |
| Flapper Extension | 18-657-854-174 |
| Gear Assembly | 18-724-505-501 |
| Gear Brace | 18-724-508-001 |
| Gear Pin | 18-657-768-371 |
| Ground Bar | 18-657-781-278 |
| Guide | 18-657-803-018 |
| Guide | 18-657-854-166 |
| Guide Link | 18-657-854-171 |
| Guide Plate | 18-657-853-256 |
| Handel Assembly, MO | 18-656-781-895 |
| Hood | 18-657-882-559 |
| Insulation | 00-413-615-182 |
| Insulation | 00-413-615-182 |
| Insulator | 18-657-783-362 |
| Insulator | 18-657-800-327 |
| Insulator | 18-657-783-362 |
| Insulator | 18-667-783-362 |
| Insulator | 18-657-854-183 |
| Insulator Shield | 18-657-840-380 |
| Interlock | 18-657-823-355 |
| Interlock Guide | 18-657-823-354 |
| Kick-Off Spring | 18-657-768-038 |
| "L" Link | 18-657-823-341 |
| Label | 18-657-822-350 |
| Label | 18-657-822-350 |
| Latch | 71-142-070-001 |
| Latch Assembly | 18-657-765-564 |
| Lever, Slide | 18-657-822-167 |
| LimiTrip 2000A | 61-300-042-501 |
| LimiTrip 3200A | 61-300-042-502 |
| LimitTrip 4000A | 61-300-042-504 |
| Link | 18-657-854-170 |
| Link | 18-657-838-283 |
| Link | 18-657-854-124 |
| Link | 18-657-823-340 |
| Link | 18-724-511-001 |
| Link | 18-657-823-345 |
| Link End | 18-657-838-299 |
| Locknut, Elastic, .375-16 | 00-633-025-124 |
| Locknut, Hex., 312-18, (Huglock) | 00-633-222-105 |
| Locknut, Hex., 312-18, Stover | 15-171-063-006 |
| Locknut, Stover, .312-18 | 15-171-063-006 |
| Locknut, Stover, .375-16 | 15-171-063-011 |
| Locknut, Stover, .375-24 | 15-171-063-014 |
| Lockwasher | 00-655-017-022 |
| Lockwasher | 00-655-047-060 |
| Lockwasher, #10 | 00-655-017-022 |
| Lockwasher, #10, Ext. Tooth | 00-655-067-100 |
| Lockwasher, #6 | 00-655-047-060 |
| Lockwasher, .50 | 00-655-017-036 |
| Lockwasher, Ext. T 250 | 00-655-067-140 |
| Lockwasher, Int. T., 250 | 00-655-047-140 |
| Lockwasher, Med., 312 | 00-655-017-030 |
| Loctite-Loctite Primer | 15-333-281-005 |
| Loctite-Screw Lock | 15-333-281-003 |
| Manual Reset Rod | 18-658-024-006 |
| Marking Strip | 15-171-052-004 |
| Marking Strip | 15-171-051-005 |
| Motor | 18-657-784-003 |
| Motor 120 VAC/125 VDC | 71-340-297-001 |
| Motor 240VAC/250VDC | 71-340-297-002 |
| Motor 48VDC | 71-340-297-005 |
| Motor Switch | 15-171-186-010 |
| Motor Switch | 15-171-186-010 |
| Name Plate | 18-657-823-345 |
| Name Plate | 18-657-840-382 |
| Nut | 00-633-059-210 |
| Nut | 15-171-035-002 |
| Nut | 00-633-059-210 |
| Nut | 15-171-035-001 |
| Nut, 3 Switches Only | 15-171-063-004 |
| Nut, Elastic Stop, #10-24 | 00-633-039-110 |
| Nut, Elastic Stop, #10-32 | 00-633-050-210 |
| Nut, Hex, #10-32 | 00-631-109-210 |
| Nut, Hex. Jam. 25-20 | 00-631-171-104 |
| Nut, Hex. .500-13 | 00-631-171-108 |
| Nut, Hex., 500-13 | 00-631-171-108 |
| Panel | 18-395-371-001 |
| Pawl | 18-657-800-346 |
| Phase Barrier | 18-727-829-001 |
| Pin | 18-727-750-003 |
| Pin | 18-657-840-385 |
| Pin, .31 x 2.12 | 18-657-769-367 |
| Pin, .375 x 1.16 | 18-724-501-001 |
| Pin, .375 x 1.62 | 19-724-501-002 |
| Pin, .375 x 1.88 | 18-724-501-004 |
| Pin, .375 x 1.94 | 18-724-501-012 |
| Pin, .375 x 2.12 | 18-724-501-006 |
| Pin, .375-3.75 | 18-724-501-011 |
| Pin, .50 Dia. X 2.04 | 18-727-832-001 |
| Pin, Shoulder | 18-657-769-368 |
| Pin. .50 Dia. X 3.00 | 18-727-832-002 |
| Plate | 18-657-838-296 |
| Primary Disc | 18-733-481-502 |
| Push Rod | 18-657-768-036 |
| Pushrod | 18-393-685-001 |
| Rack Position | 18-657-823-348 |
| Racking | 18-657-784-002 |
| Racking Screw Assembly | 18-727-842-502 |
| Racking Shaft Assembly | 18-729-236-501 |
| Reset Assembly | 18-657-633-575 |
| Reset Lever | 18-657-822-166 |
| Resistor | 15-171-046-015 |
| Retainer | 00-673-285-063 |
| Retainer | 18-657-822-197 |
| Rivet, Flat Hd., 188 x .75 | 18-657-824-128 |
| Rivet, Rd. Hd., .188 x .375 | 00-671-251-085 |
| Rocking Block | 18-657-823-359 |
| Rod End Clip, .250 | 15-171-399-004 |
| Roll Pin | 00-671-185-901 |
| Roll Pin .188 x .375 | 00-671-177-321 |
| Roll Pin, .125 x 1.25 | 00-671-176-195 |
| Roll Pin, .168 x .75 | 00-671-177-313 |
| Roll Pin, .188 X .75 | 00-671-177-313 |
| Roller | 71-141-789-003 |
| Rotor | 71-141-993-001 |
| Screw | 00-613-124-216 |
| Screw | 15-171-399-010 |
| Screw | 15-171-399-010 |
| Screw | 00-615-641-903 |
| Screw | 15-171-399-025 |
| Screw | 00-615-124-220 |
| Screw | 00-615-124-218 |
| Screw | 15-171-399-008 |
| Screw | 15-171-399-041 |
| Screw | 15-171-399-008 |
| Screw | 15-171-399-038 |
| Screw | 00-615-641-904 |
| Screw | 00-615-485-225 |
| Screw | 00-615-485-222 |
| Screw | 18-657-465-036 |
| Screw #10-32 (.5) | 15-171-399-010 |
| Screw #6-32 | 15-171-074-007 |
| Screw Terminal | 18-657-465-035 |
| Screw, #10-32 x .50 | 15-171-399-010 |
| Screw, #10-32 x .62 | 00-615-513-220 |
| Screw, #10-32 x .75 | 15-171-399-025 |
| Screw, #10-32 x 3.25 | 00-615-485-242 |
| Screw, FI. Hd. #10-32 x .62 | 00-615-345-220 |
| Screw, Hex, Soc.Button Hd., 250-20 x .62 | 00-615-663-373 |
| Screw, Hex, Washer, Hd., Thd. Rolling, .25-20 x .62 | 00-615-663-373 |
| Screw, Hex. Washer Hd., Thd. Rolling, .25-20 x .62 | 00-615-663-373 |
| Screw, Stand-off | 18-657-465-036 |
| Screw, Terminal | 18-657-465-035 |
| Screws (.25-28) .38 | 00-615-485-369 |
| Sealed Actuator | 18-387-921-503 |
| Seat, Spring | 18-657-854-166 |
| Seat, Spring | 18-657-822-184 |
| Seat, Spring | 18-657-822-196 |
| Secondary Disconnect Assembly complete | 72-240-028-501 |
| Shaft | 71-141-992-001 |
| Shield | 18-657-784-013 |
| Slide Assembly | 18-727-836-501 |
| Solendoid 120 VAC-48VDC | 18-724-513-001 |
| Solendoid 24 VDC | 18-724-513-006 |
| Solendoid 240 VAC-125VDC | 18-724-513-002 |
| Solendoid 250 VDC | 18-724-513-004 |
| Solendoid 32 VDC | 18-724-513-007 |
| Solenoid | 18-724-513-007 |
| Solenoid 120VAC/48VDC | 18-724-513-001 |
| Solenoid 240VAC/125VDC | 18-724-513-002 |
| Solenoid 250VDC | 18-724-513-004 |
| Solenoid for Electric Reset 120VAC | 18-721-497-001 |
| Solenoid for Electric Reset 125VDC | 18-721-497-002 |
| Solenoid for Electric Reset 240VAC | 18-721-497-003 |
| Solenoid for Electric Reset 250VDC | 18-721-497-004 |
| Solenoid for Electric Reset 48VDC | 18-721-497-005 |
| Spacer | 18-727-750-003 |
| Spacer | 18-657-768-053 |
| Spacer | 71-915-695-013 |
| Spacer | 18-657-838-298 |
| Spacer Plate | 18-657-768-030 |
| Spacer, .375 x .190 | 18-724-503-003 |
| Spacer, .375 x .190 | 18-724-503-003 |
| Spacer, .375 x .255 | 18-657-823-356 |
| Spacer, .375 x .460 | 18-724-503-001 |
| Spacer, .375 x .460 | 18-724-503-001 |
| Spacer, .375 x .50 | 18-724-503-004 |
| Spacer, .375 x 1.94 | 18-724-503-004 |
| Spacer, .50 I.D. x .180 | 18-727-838-001 |
| Spacer, .50 I.D. x .460 | 18-727-838-002 |
| Spacer, .62 I.D. x .180 | 18-727-659-002 |
| Spacer, .62 I.D. x .310 | 18-727-839-003 |
| Spacer, .62 x .240 | 18-727-839-005 |
| Spacer, Link | 18-657-763-372 |
| Spring | 71-141-976-001 |
| Spring | 71-141-173-001 |
| Spring | 18-657-823-358 |
| Spring | 71-141-799-001 |
| Spring | 00-837-455-026 |
| Spring | 71-142-408-001 |
| Spring | 72-140-324-001 |
| Spring | 18-657-768-033 |
| Spring | 71-141-761-001 |
| Spring | 14-18-784-001 |
| Spring | 18-657-840-381 |
| Spring Assembly | 18-726-870-501 |
| Spring Guide | 18-657-838-281 |
| Spring Hanger | 18-727-726-001 |
| Spring, Opening | 71-142-123-001 |
| Stand Off | 18-657-465-036 |
| Static Trip 2000A | 61-300-032-505 |
| Static Trip 2400A | 61-300-032-509 |
| Static Trip 3200A | 61-300-032-506 |
| Static Trip 4000A | 61-300-032-503 |
| Stop Block | 18-657-768-039 |
| Strap | 18-727-834-001 |
| Strap | 71-141-990-001 |
| Stud | 14-135-915-008 |
| Sub-Cover | 18-657-838-295 |
| Support | 71-142-108-001 |
| Support 10 Per CT | 71-142-108-001 |
| Support Pivot | 18-657-940-150 |
| Switch | 00-871-523-008 |
| Switch | 15-171-186-010 |
| Switch Bracket | 18-657-803-007 |
| Switch Lever (Cam) | 18-657-768-037 |
| Switch Lever (Gear) | 18-657-768-032 |
| Terminal | 00-851-062-023 |
| Terminal | 15-171-399-032 |
| Terminal | 00-851-021-042 |
| Terminal | 00-851-609-006 |
| Terminal | 00-851-062-023 |
| Terminal Block | 15-171-051-005 |
| Terminal Block, 7 Point | 15-171-051-005 |
| Terminal Only | 15-171-399-032 |
| Toggle Link | 18-657-768-025 |
| Transformer | 15-171-194-001 |
| Trip | 18-657-838-287 |
| Trip Bar | 18-728-500-037 |
| Trip Flap Assembly | 18-727-727-502 |
| Type LTI | 18-733-681-501 |
| Type LTS | 18-733-681-502 |
| Type LTSI | 18-733-681-503 |
| Type TI (2T) | 18-734-167-515 |
| Type TS (2T) | 18-734-167-516 |
| Type TSG (3T) | 18-734-167-507 |
| Type TSI (2T) | 18-734-167-517 |
| Type TSIG (3T) | 18-734-167-508 |
| "U" Washer | 00-659-056-057 |
| UV Base | 18-395-032-001 |
| UV Link | 18-727-850-001 |
| Washer | 71-152-809-024 |
| Washer | 00-651-017-087 |
| Washer | 71-105-182-016 |
| Washer, .375 x .12 | 18-657-768-374 |
| Washer, .38 | 00-651-007-214 |
| Washer, .50 | 00-651-007-285 |
| Washer, Fibre | 71-105-182-017 |
| Washer, Plain | 00-651-027-357 |
| Washer, Plain | 00-651-027-170 |
| Washer, Plain | 00-651-017-135 |
| Washer, Rubber | 72-140-000-001 |
| Wheel | 18-657-822-355 |
| Wingnut, .250-20 | 15-639-101-002 |
| "X" Washer | 15-171-399-035 |
| "X" Washer | 00-659-055-250 |
| "X" Washer | 00-659-055-187 |
| "X" Washer | 00-659-055-250 |
| "X" Washer | 00-659-005-156 |
| "X" Washer | 00-659-055-250 |
| "X" Washer | 15-171-399-035 |
| "Y" Relay 120 VAC | 15-171-399-014 |
| "Y" Relay 125 VDC | 15-171-399-016 |
| "Y" Relay 240 VAC | 15-171-399-015 |
| "Y" Relay 250 VDC | 15-171-399-017 |
| "Y" Relay 48 VDC | 15-171-399-027 |
How Can We Help?
Use the form below to check stock on parts, full assemblies, accessories, switchgear or inquire about service work to your circuit breaker. No part number? No problem! Upload a picture or file of your existing equipment. Our expert staff is skilled at identifying replacement parts from customer images.