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MCC Renewal Parts Lookup

OEM part numbers for the pieces that actually break: handle mechanisms by breaker type, stabs, doors, latches, terminal blocks. Identify your line first, then find the part. Source document cited under every table.

Technical reference

Not sure which line you have? Start with the identification reference. Part numbers below are the OEM's own, from the renewal parts publications cited under each table. Where a number ends in -xx, the suffix is selected from a table in the cited document by breaker type, NEMA size, or hand.

Eaton F2100 and Advantage: handle mechanism kits by disconnect

Source: Eaton RP04304001E (F2100), December 2002. RP04304002E (Advantage) lists the identical handle table. Each kit includes operating arm, adjustable linkage, and hardware.
Disconnect in the bucketHandle mechanism kit
FB breaker or MCP4719A92G43
KB breaker4719A92G05
HFD breaker or HMCP4719A88G01
HFD / HMCP, 6 inch unit4719A92G56
HMCPE4700A99G69
HLD4700A99G65
HJD or HKD4719A89G01
LB4719A92G06
MA or MC4719A92G07
NB4719A92G08
FCL4719A92G44
LCL4719A92G45
K fusible switch, 30/60/100 A5A10098G01
K fusible switch, 200 A5A10098G03
K fusible switch, 400 A5A10098G05

Eaton F2100: structure and unit parts

Source: Eaton RP04304001E. Stab assemblies are not sold separately on any Eaton vintage: a replacement unit includes new wrapper, stab assembly, door, and handle mechanism (RP04304001E p. 26).
PartNumber
Vertical bus, 300 to 1200 A4719A80G01 - G05
Vertical bus shutter kit4719A91G15
Blank unit doors, 6" to 36"4719A91G20 - G25
Door mounting hardware kit (2 hinges, pins, two quarter-turn latches)4719A91G26
Vertical wireway door kit4719A91G17
Unit drawout top rail4719A92G02
Pull-apart terminal block, 7 circuit4719A92G57
Overload reset button and rod kit4719A92G58
Control transformers, 50 to 500 VA4719A92G46 - G54
Bus splice kits4719A97G86 - G91
Touch-up paint4719A91G10

Eaton / Cutler-Hammer Freedom Unitrol: handle mechanisms

Source: Eaton RP04304004E (Freedom Unitrol, 1988-94). Dual-handle variants: 82-6439, 82-6440, 82-6442, 82-6443 per the same tables.
DisconnectHandle mechanism
FS / FH breaker, single82-5821
FD / HFD / FDC / HMCP, single82-6441
6 inch unit82-6437
JS / JH / JL82-6438
JD / HJD82-6444
KS / KH / KD / HKD82-6445
LS / LH / LC82-5824
MS / MH / MC82-5827
NS / NH / NC82-5828
Fusible 30 / 60 A, single82-5829
Fusible 100 A82-5830
Fusible 200 A82-5831
Fusible 400 A82-6458
Fusible 600 A82-6562
Fusible 800 A82-6566

Westinghouse Type W: handle mechanisms and unit parts

Source: Eaton RP04304006E (Type W, 1965-75). The same document lists Series C retrofit kits converting Type W, Five Star, and F10 buckets from obsolete MCP / F / FA / FB / K / KA / KB / L / LA / LB breakers to Series C, the only OEM-documented cross-generation breaker retrofit in this group.
PartNumber
Handle: HMCP / HFD / MCP / FB4719A94G03
Handle: HJD / KB / MCP 2504719A94G04
Handle: LA / MCP 4004719A94G05
Handle: MA4719A94G06
Handle: NB4719A94G07
Handle: DS switch 30/60/100 A4719A94G08
Handle: DS switch 200 A4719A94G09
Pressure terminal block4719A94G11
Pull-apart terminal block4719A94G12
Unit top rail4719A94G32
Single to dual feeder breaker kit4719A94G18
Fuse clip kits4719A94G22 - G30

GE 8000-Line and Spectra

Source: ABB/GE renewal parts bulletin GEF-4628B (June 2026 edition). Gx suffixes select by unit function, NEMA size, and door height per the bulletin's matrices. Two hard stops in the same document: Spectra handle assemblies are obsolete (broken assembly means an 8000-style replacement bucket), and QMR/QMW fusible switches are no longer supported.
PartNumber
Handle only (egg-shaped operator)204B4050RWG6
Handle only, earlier style204B4050RWG5
Handle assembly, TED/TEC breaker combos169C6350KEGx
Handle assembly, fusible 30-600 A169C6350KHGx / KGGx
Handle assembly, TFJ/TFK and TJJ/TJK frames169C6381AAGx - ASGx
Stab base assembly (plastic base and cover)117B6219G1
Stab power harness, by size and door height8000L4Gx / L6Gx / L8Gx
Vertical ground bus stab finger259A3264G1
Door latch assembly, quarter-turn169C6366DMG2
Unit frame latch assembly169C6386DMG1
Racking screw, plug-in units273A7722P1
Overload reset assemblies204B4142BDG1 - G7
Control terminal board assembly, 3 point204B4048G1

Allen-Bradley CENTERLINE 2100

Source: Rockwell publication 2100-6.0.2, CENTERLINE MCC Renewal Parts Selection Guide (hosted as 2100-TD015-EN-P), the deepest component-level parts book in the industry: 114 pages including exploded views and a serial/series decoder. The -xx suffixes select by bulletin number, NEMA size, amps, and hand from its tables; stab selection is on pp. 73-74.
PartNumber
Handle + operating mechanism + side plate40116-438-xx
Handle + operating mechanism40116-440-xx
Handle + breaker operating mechanism40116-446-xx
Large-frame handles40126-416-xx / 417-xx / 832-xx
Unit stab assembly (ships with NO-OX-ID)40120-410-xx
Stab mounting screws, 1/4-20 taptite28171-140-09
Handle legend caps (ON/OFF/RESET/TRIPPED)40116-117-01 - 08
Handle gaskets40119-264-01 / -02
Control terminal block, 5 pole (= 1492-EC85, 25 A)40164-426-xx
Power terminal block, 3 pole (= 1492-ED103, 60 A)40164-427-03
Size 3 power terminal blocks (= 1492-CE2, 195 A)40120-818-01 - 03
Ground lug, #4 to 500 MCM40114-812-01
Ground lug, #6 to 250 MCM40114-812-02
NO-OX-ID stab grease, pint / 1 oz2100-N18 / 2100-N18T

Siemens: tiastar and legacy lines

Source: Siemens Aftermarket Renewal Parts Catalog, ANSI-LV-MCC-AFTMKT. Handle kit suffixes select by breaker type (through current 3VA retrofits) and hand per its tables. The shutter kit fits only insulated-vertical-bus structures built after June 1, 2001. Stab and unit-side bus parts are factory service quote only.
PartNumber
Handle kits, Model 958PG1092-1HC00 - 14
Handle kits, Model 95+8PG1092-1HD00 - 15
Handle kits, Model 908PG1092-1HB00 - 06
Handle kits, Marq218PG1092-1HA00 - 13
Handle kits, System 89 / tiastar8PG1192-1HE00 - 33
Vertical wireway doors, 95+/89/tiastar8PG1192-1DD00 - 24
Unit and filler doors8PG1192-1DE00 - 51
tiastar door latch and mounting kit8PG1192-2DF01
Plug-in unit support kits8PG1192-2DF02 / -2DF03
Overload reset kits8PG1192-2RA00 / -2RA01 / -2RB00
Horizontal bus splice kits, 600-2500 A8PG1191-2KA / -2KB
tiastar shutter mechanism kit8PG1191-2MA00
Touch-up paintXPT060M

Square D Model 6

Schneider publishes no consolidated Model 6 parts bulletin; these numbers come from se.com FAQ articles and orderable Class 8998 accessory SKUs. Model 5 handles, linkages, and saddle assemblies are obsolete (FAQs FA127402, FAQ000269132). Model 4: replacement units by 8998 catalog type and Model 6 transition sections only, per the Obsolete MCC digest, section 12.
PartNumberSchneider source
Handle mechanism, Size 1, 12" unit, PowerPact H MCP/TM80439-402-51FAQ FA313959
Operator mechanism with handle80439-889-54FAQ FA400650
Stab assembly, 100 A H-frame breaker feeder80451-941-55FAQ FA127804
Pawl latch assembly (units over 12" only)80420-879-50FAQ knowledge base
Breaker feeder doors, 6" / 12" / 18"80427-002-51 / 80440-007-53 / 80440-012-55FAQ knowledge base
Mid shelf, current standard80466-008-52FAQ FA128794
Blank doors by height, 6" to 24"8998CP06 - 8998CP24Class 8998 catalog SKUs
Wireway cover screws, 10-32 x 1.2580450-227-01FAQ FA129593

Sources

1. Eaton renewal parts guides RP04304001E (F2100), RP04304002E (Advantage), RP04304003E (Series 2100 / Five Star), RP04304004E (Freedom Unitrol), RP04304005E (F10), RP04304006E (Type W), RP04304007E (9800 Unitrol), RP04304008E (11-300), RP04304010E (Type 5600), all December 2002.
2. ABB/GE, renewal parts bulletin GEF-4628B, June 2026; GEH-4961.
3. Rockwell Automation, publication 2100-6.0.2 / 2100-TD015-EN-P.
4. Siemens, Aftermarket Renewal Parts Catalog ANSI-LV-MCC-AFTMKT; identification guide CCBR-MCCAR-0813.
5. Schneider Electric, catalog 8998CT9701; se.com FAQ articles as cited per row; Obsolete Motor Control Centers digest, section 12.

Related: identify your lineup, breaker interrupting ratings, parts in stock.