Fixed-trip molded case breaker cross reference by trip rating
Meisterline Controls scopes and quotes UL 508A control panels. This page lines up fixed-trip UL 489 molded case circuit breakers from ABB, Allen-Bradley, Eaton, Schneider Electric and Siemens by trip rating, lists each frame’s interrupting rating at 480 V, and shows how each line’s part numbers are built, with the catalog page for each.
Trip ratings side by side
A matching trip rating is a starting point, not an equivalent. Interrupting rating at your voltage, voltage rating (including slash ratings such as 480Y/277 V), pole count, terminals and lugs, and any series or combination rating all have to be checked before a breaker can be substituted. Send the list and we’ll check it against your ratings.
Scope: fixed-trip breakers only. Adjustable-trip breakers go through our Parts Check, where the setting is confirmed.
| Trip rating | ABB Record Plus, Tmax XT | Allen-Bradley 140G frame | Eaton Power Defense, Series G | Schneider Electric (Square D) PowerPacT | Siemens 3VA5 |
|---|---|---|---|---|---|
| 15 A | FB100 / XT1 / XT2 | 140G-G / 140G-H | PD-1 / PD-2 / EG | B-frame | 3VA51 |
| 16 A | Not in the FB100 or Tmax XT TMF ranges | 140G-G / 140G-H | Not in the Power Defense or EG fixed-trip ranges | Not in the B- or Q-frame ranges | Not in the 3VA5 fixed-thermal ranges |
| 20 A | FB100 / XT1 / XT2 | 140G-G / 140G-H | PD-1 / PD-2 / EG | B-frame | 3VA51 |
| 25 A | FB100 / XT1 / XT2 / XT4 | 140G-G / 140G-H / 140G-J | PD-1 / PD-2 / EG | B-frame | 3VA51 |
| 30 A | FB100 / XT1 / XT2 / XT4 | 140G-G / 140G-H / 140G-J | PD-1 / PD-2 / EG | B-frame | 3VA51 |
| 32 A | Not in the FB100 or Tmax XT TMF ranges | 140G-G / 140G-H / 140G-J | Not in the Power Defense or EG fixed-trip ranges | Not in the B- or Q-frame ranges | Not in the 3VA5 fixed-thermal ranges |
| 35 A | FB100 / XT1 / XT2 / XT4 | 140G-G / 140G-H / 140G-J | PD-1 / PD-2 / EG | B-frame | 3VA51 |
| 40 A | FB100 / XT1 / XT2 / XT4 | 140G-G / 140G-H / 140G-J | PD-1 / PD-2 / EG | B-frame | 3VA51 / 3VA52 |
| 45 A | FB100 / XT1 | 140G-G | PD-1 / PD-2 / EG | B-frame | 3VA51 / 3VA52 |
| 50 A | FB100 / XT1 / XT2 / XT4 | 140G-G / 140G-H / 140G-J | PD-1 / PD-2 / EG | B-frame | 3VA51 / 3VA52 |
| 60 A | FB100 / XT1 / XT2 / XT3 / XT4 | 140G-G / 140G-H / 140G-I / 140G-J | PD-1 / PD-2 / EG | B-frame | 3VA51 / 3VA52 |
| 63 A | Not in the FB100 or Tmax XT TMF ranges | 140G-G / 140G-H / 140G-I / 140G-J | Not in the Power Defense or EG fixed-trip ranges | Not in the B- or Q-frame ranges | Not in the 3VA5 fixed-thermal ranges |
| 70 A | FB100 / XT1 / XT2 / XT3 / XT4 | 140G-G / 140G-H / 140G-I / 140G-J | PD-1 / PD-2 / EG | B-frame / Q-frame | 3VA51 / 3VA52 |
| 80 A | FB100 / XT1 / XT3 / XT4 | 140G-G / 140G-I | PD-1 / PD-2 / EG | B-frame / Q-frame | 3VA51 / 3VA52 |
| 90 A | FB100 / XT1 / XT3 / XT4 | 140G-G / 140G-I | PD-1 / PD-2 / EG | B-frame / Q-frame | 3VA51 / 3VA52 |
| 100 A | FB100 / XT1 / XT3 / XT4 | 140G-G / 140G-I | PD-1 / PD-2 / PD-3 / EG | B-frame / Q-frame | 3VA51 / 3VA52 |
| 110 A | XT1 / XT3 / XT4 | 140G-G / 140G-I | PD-1 / PD-2 / EG | B-frame / Q-frame | 3VA51 / 3VA52 |
| 125 A | XT1 / XT3 / XT4 | 140G-G / 140G-I | PD-1 / PD-2 / PD-3 / EG | B-frame / Q-frame | 3VA51 / 3VA52 |
| 150 A | XT3 / XT4 | 140G-I | PD-2 / PD-3 | Q-frame | 3VA52 |
| 160 A | Not in the FB100 or Tmax XT TMF ranges | 140G-I | Not in the Power Defense or EG fixed-trip ranges | Not in the B- or Q-frame ranges | Not in the 3VA5 fixed-thermal ranges |
| 175 A | XT3 / XT4 | 140G-I | PD-2 / PD-3 | Q-frame | 3VA52 |
| 200 A | XT3 / XT4 | 140G-I | PD-2 / PD-3 | Q-frame | 3VA52 / 3VA53 |
| 225 A | XT3 / XT4 | 140G-I | PD-2 / PD-3 | Q-frame | 3VA52 / 3VA53 |
| 250 A | XT4 | Not in the 140G fixed-trip ranges | PD-3 | Q-frame | 3VA52 / 3VA53 |
| 300 A | Not in the FB100 or Tmax XT TMF ranges | Not in the 140G fixed-trip ranges | PD-3 / PD-4 | Not in the B- or Q-frame ranges | 3VA53 |
| 350 A | Not in the FB100 or Tmax XT TMF ranges | Not in the 140G fixed-trip ranges | PD-3 / PD-4 | Not in the B- or Q-frame ranges | 3VA53 |
| 400 A | Not in the FB100 or Tmax XT TMF ranges | Not in the 140G fixed-trip ranges | PD-3 / PD-4 | Not in the B- or Q-frame ranges | 3VA53 |
| 450 A | Not in the FB100 or Tmax XT TMF ranges | Not in the 140G fixed-trip ranges | PD-4 | Not in the B- or Q-frame ranges | 3VA54 |
| 500 A | Not in the FB100 or Tmax XT TMF ranges | Not in the 140G fixed-trip ranges | PD-3 / PD-4 | Not in the B- or Q-frame ranges | 3VA54 |
| 600 A | Not in the FB100 or Tmax XT TMF ranges | Not in the 140G fixed-trip ranges | PD-3 / PD-4 | Not in the B- or Q-frame ranges | 3VA54 / 3VA55 |
| 700 A | Not in the FB100 or Tmax XT TMF ranges | Not in the 140G fixed-trip ranges | PD-4 | Not in the B- or Q-frame ranges | 3VA55 |
| 800 A | Not in the FB100 or Tmax XT TMF ranges | Not in the 140G fixed-trip ranges | PD-4 | Not in the B- or Q-frame ranges | 3VA55 / 3VA57 |
| 900 A | Not in the FB100 or Tmax XT TMF ranges | Not in the 140G fixed-trip ranges | Not in the Power Defense or EG fixed-trip ranges | Not in the B- or Q-frame ranges | 3VA57 |
| 1000 A | Not in the FB100 or Tmax XT TMF ranges | Not in the 140G fixed-trip ranges | Not in the Power Defense or EG fixed-trip ranges | Not in the B- or Q-frame ranges | 3VA57 |
| 1200 A | Not in the FB100 or Tmax XT TMF ranges | Not in the 140G fixed-trip ranges | Not in the Power Defense or EG fixed-trip ranges | Not in the B- or Q-frame ranges | 3VA57 |
| 1400 A | Not in the FB100 or Tmax XT TMF ranges | Not in the 140G fixed-trip ranges | Not in the Power Defense or EG fixed-trip ranges | Not in the B- or Q-frame ranges | 3VA58 |
| 1600 A | Not in the FB100 or Tmax XT TMF ranges | Not in the 140G fixed-trip ranges | Not in the Power Defense or EG fixed-trip ranges | Not in the B- or Q-frame ranges | 3VA58 |
| 1800 A | Not in the FB100 or Tmax XT TMF ranges | Not in the 140G fixed-trip ranges | Not in the Power Defense or EG fixed-trip ranges | Not in the B- or Q-frame ranges | 3VA59 |
| 2000 A | Not in the FB100 or Tmax XT TMF ranges | Not in the 140G fixed-trip ranges | Not in the Power Defense or EG fixed-trip ranges | Not in the B- or Q-frame ranges | 3VA59 |
“Not in the … range” means that line’s catalog prints no fixed-trip, UL-listed breaker at that rating in the frames shown. A larger or adjustable-trip breaker from the same line may exist; those go through the Parts Check. Allen-Bradley 16, 32, 63 and 160 A appear as printed in Rockwell’s tables (pp.33, 37, 42, 46–47); Eaton prints 16, 32, 63 and 160 A for the EG as well but marks them “not UL listed ratings” (V4-T2-171 to 175), and Power Defense prints none of them, so they aren’t shown for Eaton.
Trip rating is the breaker’s continuous ampere rating as printed in the catalog’s selection table. A breaker counts as fixed-trip here only where its own catalog prints the overload (thermal) trip as fixed: ABB “TE = Fixed Thermal Magnetic” (Record Plus) and TMF, with the overload threshold and trip time both “Fixed” (Tmax XT catalog p.61), Allen-Bradley protection type C “Fixed thermal/fixed magnetic”, Eaton Power Defense TFF “Fixed Thermal / Fixed Magnetic” and TFA “Fixed thermal / Adjustable magnetic” (V4-T2-23, 31, 44, 58) and Series G “FF = Fixed fixed”, Square D “Fixed … thermal-magnetic protection”, and Siemens TM210 FTFM (fixed thermal, fixed magnetic) and TM230 FTAM (fixed thermal, adjustable magnetic). Eaton’s VFF and VFA (50 °C) trip units are marked “non UL” and aren’t shown. One row per trip rating; each cell names the frames of that line printed with a fixed-trip breaker at exactly that rating. Lines are in alphabetical order. Poles, voltage and interrupting ratings for each frame are in the frame table below.
UL: only UL 489 circuit breakers whose catalog states the UL listing appear. ABB: “UL489/cUL489 Listed” (BuyLog p.6-7); Tmax XT “comply with UL489 and CSA C22.2 Standards (E116596; E116595; E93565)” (Tmax XT catalog p.16), a UL file number with the standard. Allen-Bradley: “UL Listed” (140G-TD101 pp.19, 31). Eaton: Power Defense “UL 489” (V4-T2-6) and “UL File Number E7819” for each frame (V4-T2-12, 15), a UL file number with the standard; EG “UL and CSA listed: Yes”, to 125 A (V4-T2-165). Square D: “UL listed interrupting ratings” (B-frame, Digest Sec07 p.7-34) and “cULus” (Q-frame, p.7-41). Siemens: “All 3VA5 thermal-magnetic trip and 3VA6 electronic trip circuit breakers are UL listed for reverse feed applications” (Sect17 p.17/6), with the same statement for each 3VA5 frame. Supplementary protectors (UL 1077) are a different product and aren’t listed here.
Frames: poles, voltage and interrupting rating
Interrupting rating is the UL 489 rating in kA rms symmetrical at 480 V AC, by the line’s own interrupting code, for multi-pole breakers. 480 V is the voltage printed for most frames on this page; the one frame without it is a 240 V breaker, and that cell says so. Where 1-pole versions carry no 480 V rating, the cell says so.
| Line and frame | Fixed-trip ratings (A) | Poles | Maximum AC voltage | kA at 480 V, by interrupting code | Catalog pages |
|---|---|---|---|---|---|
| ABB Record Plus FB100 | 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100 | 1, 2, 3 | 600/347 V (1-pole: 347 V) | FBV 35 · FBN 65 · FBH 100 · FBL 150. 1-pole: no 480 V rating printed. | BuyLog pp.6-178 to 6-181 |
| ABB Tmax XT1 (125 A) | 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100, 110, 125 | 3, 4 | 600Y/347 V | N 25 · S 35 · H 65 | Tmax XT pp.61, 248–249 |
| ABB Tmax XT2 (125 A) | 15, 20, 25, 30, 35, 40, 50, 60, 70 (80 A and up are TMA, adjustable thermal) | 3, 4 | 600 V | N 25 · S 35 · H 65 · L 100 · V 150 · X 200 | Tmax XT pp.61, 250–268 |
| ABB Tmax XT3 (225 A) | 60, 70, 80, 90, 100, 110, 125, 150, 175, 200, 225 | 3, 4 | 600Y/347 V | N 25 · S 35 | Tmax XT pp.61, 246, 272; BuyLog p.6-95 |
| ABB Tmax XT4 (250 A) | 25, 30, 35, 40, 50, 60, 70, 80, 90, 100, 110, 125, 150, 175, 200, 225, 250 (80 A and up: 3-pole only) | 3, 4 | 600 V | N 25 · S 35 · H 65 · L 100 · V 150 · X 200 | Tmax XT pp.61, 274–296 |
| Allen-Bradley 140G frame G (125 A) | 15, 16, 20, 25, 30, 32, 35, 40, 45, 50, 60, 63, 70, 80, 90, 100, 110, 125 | 3, 4 | 600Y/347 V | G2 25 · G3 35 · G6 65 | 140G-TD101 pp.32–33 |
| Allen-Bradley 140G frame H (125 A) | 15, 16, 20, 25, 30, 32, 35, 40, 50, 60, 63, 70 (80 A and up are adjustable thermal) | 3, 4 (current-limiting HC: 3) | 600 V | H2 25 · H3 35 · H6 65 · H0 100 · H15 150 | 140G-TD101 pp.34–37 |
| Allen-Bradley 140G frame I (225 A) | 60, 63, 70, 80, 90, 100, 110, 125, 150, 160, 175, 200, 225 | 3, 4 | 600Y/347 V | I2 25 · I3 35 | 140G-TD101 pp.41–42 |
| Allen-Bradley 140G frame J (250 A) | 25, 30, 32, 35, 40, 50, 60, 63, 70 (80 A and up are adjustable thermal) | 3, 4 (current-limiting JC: 3) | 600 V | J2 25 · J3 35 · J6 65 · J0 100 | 140G-TD101 pp.43–47 |
| Eaton Power Defense PD-1 (125 A) | TFF: 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100, 110, 125 | 1, 2, 3, 4 (N and P: 3, 4) | 600Y/347 V (interrupting table, V4-T2-22; the technical data, V4-T2-12, prints 600/347 V) | C 18 · F 25 · G 35 · K 50 · M 65 · N 85 · P 100. 1-pole: rated at 277 V, no 480 V rating. | V4-T2-12, 22, 23 |
| Eaton Power Defense PD-2 (225 A) | TFF: 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100, 110, 125, 150, 175, 200, 225 (1-pole: to 150) | 1, 2, 3, 4 | 600 V | F 25 · G 35 · K 50 · M 65 · N 85 · P 100. 1-pole: rated at 277 V, no 480 V rating. | V4-T2-12, 30, 31 |
| Eaton Power Defense PD-3 (400 A and 600 A constructions) | TFA: 100, 125, 150, 175, 200, 225, 250, 300, 350, 400, 500, 600 | 2 (in a 3-pole frame), 3, 4 | 600 V | F 25 · G 35 · K 50 · M 65 · N 85 · P 100 | V4-T2-15, 43, 44 |
| Eaton Power Defense PD-4 (800 A) | TFA: 300, 350, 400, 450, 500, 600, 700, 800 | 2 (in a 3-pole frame), 3, 4 | 600 V | G 35 · K 50 · M 65 | V4-T2-15, 58 |
| Eaton Series G EG | 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100, 110, 125. 110 A: EGB, and the EGS and EGH bolt-on versions. | 1, 2, 3, 4 (EGE: 2–4; EGC: 3, 4) | 600Y/347 V | EGB 18 · EGE 25 · EGS 35 · EGH 65 · EGC 100. 1-pole: no 480 V rating printed. | V4-T2-163, 165, 170–177 |
| Schneider Electric (Square D) PowerPacT B-frame (125 A) | 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100, 110, 125 (BK: 15–30) | 1, 2, 3, 4 (BK: 1, 2) | 600Y/347 V | BD 18 · BG 35 · BJ 65 · BK 65 (2-pole). 1-pole: rated at 277 V (480Y/277 V on I-Line versions only). | Digest Sec07 pp.7-34, 7-35 |
| Schneider Electric (Square D) PowerPacT Q-frame (250 A) | 70, 80, 90, 100, 110, 125, 150, 175, 200, 225, 250 | 2, 3 | 240 V | 240 V breaker: no 480 V rating. At 240 V: QB 10 · QD 25 · QG 65 · QJ 100 (3-pole QJ: 208Y/120 V only). | Digest Sec07 p.7-41 |
| Siemens 3VA51 (125 A) | 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100, 110, 125 (FTFM and FTAM) | FTFM: 1, 1-in-2, 2, 3, 4. FTAM: 3, 4 | 600Y/347 V | S 25 · M 35 · H 65. 1-pole and 1-in-2-pole: no 480 V rating printed. | Sect17 pp.17/14–17/18 |
| Siemens 3VA52 (250 A) | FTFM 40–250; FTAM 70–250 (40, 45, 50, 60, 70, 80, 90, 100, 110, 125, 150, 175, 200, 225, 250) | 2 (in a 3-pole frame), 3, 4 | 600 V | M 35 · H 65 · C 100 | Sect17 pp.17/24–17/27 |
| Siemens 3VA53 (400 A) | FTAM: 200, 225, 250, 300, 350, 400 | 2 (in a 3-pole frame), 3, 4 | 600 V | M 35 · H 65 · C 100 | Sect17 pp.17/32–17/33 |
| Siemens 3VA54 (600 A) | FTAM: 450, 500, 600 | 2 (in a 3-pole frame), 3, 4 | 600 V | M 35 · H 65 · C 100 | Sect17 p.17/37 |
| Siemens 3VA55 (800 A) | FTAM: 600, 700, 800 | 2 (in a 3-pole frame), 3, 4 | 600 V | M 35 · H 65 · C 100 | Sect17 p.17/41 |
| Siemens 3VA57 (1200 A) | FTAM: 800, 900, 1000, 1200 | 2 (in a 3-pole frame), 3 | 600 V | M 35 · H 65 · C 100 | Sect17 p.17/47 |
| Siemens 3VA58 (1600 A) | FTAM: 1400, 1600 | 3 | 600 V | M 35 · H 65 · C 100 | Sect17 p.17/51 |
| Siemens 3VA59 (2000 A) | FTAM: 1800, 2000 | 3 | 600 V | M 35 · H 65 · C 100 | Sect17 p.17/55 |
Siemens prints “UL listed” for every 3VA5 frame, but never prints the standard number against it. Only the 3VA6 text names UL 489.
The 3VA5 is on this page on that listing statement. If your submittal needs the standard number, ask Siemens for it in writing.
Ratings: ABB US BuyLog Section 6, 9AKK108467A9438 (2026-10), pages 6-7 and 6-178 to 6-181, and SACE Tmax XT UL/CSA catalog 1SDC210200D0206 (2024-08), PDF pages 16, 61 and 248–296. Allen-Bradley: Rockwell 140G-TD101E-EN-P (2025-08), pages 19, 31–37 and 41–47. Eaton: Volume 4 Tab 2, CA08100005E (2026-04), pages V4-T2-6, 12, 15, 22, 23, 30, 31, 43, 44, 58, 163, 165 and 170–177. Schneider Electric: Square D Digest 179, Section 07 (2026-09), pages 7-33 to 7-35 and 7-41. Siemens: Industrial Controls catalog Section 17 (2026-02), pages 17/6, 17/14 to 17/18, 17/24 to 17/27, 17/32, 17/33, 17/37, 17/41, 17/47, 17/51 and 17/55.
ABB Formula isn’t named in this table: its catalog marks the order-code tables only “(UL and IEC)” (BuyLog pp.6-50 to 6-52), with no UL file number or standard, and Meisterline Controls names a breaker only where the catalog states the UL listing. Lines whose catalogs don’t print the trip as fixed or adjustable (Square D H-, J- and LA/LH-frame thermal-magnetic, Eaton Series C, ABB TEY and E150, Siemens Sentron and BQ) are covered through our Parts Check. Miniature plug-on and bolt-on panelboard breakers, such as ABB Q-Line, aren’t covered on this page.
Several lines are not on this page because their catalogs do not print the trip as fixed. The Square D H-frame prints a fixed alternating current magnetic trip with factory-sealed trip units and does not state the thermal trip; the J-frame and the LA and LH print an adjustable magnetic trip without stating the thermal. Eaton Series C prints non-interchangeable trip units, with fixed thermal and adjustable magnetic appearing only in the J and L trip unit keys rather than against the complete breakers. The ABB TEY and E150 print non-interchangeable trip. The Siemens Sentron and BQ do not state it.
This page covers fixed-trip breakers. Send any of the lines above through our Parts Check.
How each line’s part numbers are built
Each section uses only that line’s own catalog, with the page for every code. Where two pages of the same catalog disagree, the item is left out and noted.
ABB Record Plus FB100
Format: F frame interrupting rating poles voltage type rated current connection, for example FBN36TE050R. Source: ABB US BuyLog Section 6, 9AKK108467A9438 (2026-10). ABB prints the product number structure on page 6-178.
| Segment | Code | Meaning | Page |
|---|---|---|---|
| Family | F | Record Plus | p.6-178 |
| Frame rating | B | 100 A | p.6-178 |
| Interruption rating (480 V) | V / N / H / L | 35 / 65 / 100 / 150 kA | p.6-178 |
| Poles | 1 / 2 / 3 | 1, 2 or 3 poles | p.6-178 |
| Voltage rating | 6 | 600/347 | p.6-178 |
| Type | TE | Fixed Thermal Magnetic | p.6-178 |
| Rated current | 015–100 | 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100 A | p.6-178 |
| Connection | R / R2 / RV | Standard, no lugs / load lugs only / A-Series AD Plus lighting panel (includes load lugs and panel connections) | p.6-178 |
One number, segment by segment
| Segment | Value | Meaning | Page |
|---|---|---|---|
| Family | F | Record Plus | p.6-178 |
| Frame | B | 100 A frame | p.6-178 |
| Interruption rating | N | 65 kA at 480 V | p.6-178 |
| Poles | 3 | 3 poles | p.6-178 |
| Voltage | 6 | 600/347 | p.6-178 |
| Type | TE | Fixed thermal magnetic | p.6-178 |
| Rated current | 050 | 50 A | p.6-178 |
| Connection | R | Standard, no lugs | p.6-178 |
FBN36TE050R is printed in the 3-pole ordering table (p.6-181).
ABB Tmax XT (TMF)
Source: ABB SACE Tmax XT UL/CSA catalog 1SDC210200D0206 (2024-08), PDF pages. The ordering tables print each breaker’s US/CA part number in a row that names the frame, the interrupting rating at 480 V, the frame rating (Iu), the trip unit and the rated current (In), with separate columns for 3 and 4 poles. The catalog doesn’t print a key for the part number’s characters, so this section reads numbers from their table rows rather than decoding them.
Trip units
| Code | Overload threshold | Overload trip time | Short-circuit threshold | Page |
|---|---|---|---|---|
| TMF | Fixed | Fixed | Fixed (fixed instantaneous) | p.61 |
| TMA | Adjustable | Fixed | Adjustable (fixed instantaneous) | p.61 |
Only TMF breakers are on this page. TMA and the Ekip electronic trip units are adjustable and go through our Parts Check.
One number, read from its table row
| Column | Value | Page |
|---|---|---|
| US/CA part number | XT1NU3100AFF000XXX | p.248 |
| Table heading | SACE XT1N TMF, front terminals (F) | p.248 |
| Size | XT1 | p.248 |
| Interrupting rating (480 V) | 25 kA | p.248 |
| Iu (frame rating) | 125 A | p.248 |
| Trip unit | TMF | p.248 |
| In (rated current) | 100 A | p.248 |
| Poles | 3 (the 4-pole number in the same row is XT1NU4100AFF000XXX) | p.248 |
Allen-Bradley 140G
Format: 140G- frame interrupting code protection type poles - rated current, for example 140G-G3C3-C30. Source: Rockwell 140G-TD101E-EN-P (2025-08), “Catalog Number Explanation” for each frame (p.32 frame G, p.34 frame H, p.41 frame I, p.43 frame J). Rockwell notes that not all combinations generate a valid catalog number (p.32).
| Segment | Code | Meaning | Page |
|---|---|---|---|
| Bulletin | 140G | MCCB | p.32 |
| Frame size / rating | G / H / HC / I / J / JC | 125 A / 125 A / 125 A current limiting / 225 A / 250 A / 250 A current limiting | pp.32, 34, 41, 43 |
| Interrupting rating (based on Ic at 480 V) | 2 / 3 / 6 / 0 / 15 | 25 / 35 / 65 / 100 / 150 kA (0 on frames H and J; 15 on frame H) | pp.32, 34, 41, 43 |
| Protection type | C | Fixed thermal/fixed magnetic (all four frames) | pp.32, 34, 41, 43 |
| Protection type, adjustable (not on this page) | E / F | E: adjust thermal/fixed magnetic (frame G). F: adjust thermal/adjust magnetic (frames H, J) | pp.32, 34, 43 |
| Number of poles | 3 / 4 | 3 poles / 4 poles | p.32 |
| Rated current | C□ / D□ | Example: C30 = 30 A; D16 = 160 A | p.32 |
| Continuous rated | (blank) | 80% rated | p.32 |
Rockwell’s numbering rule gives the 140G-D12 as 120 A. Its own selection tables print it at 125 A, and the D17 and D22 at 175 A and 225 A.
This page uses the table values. The five-ampere difference is small enough to pass unnoticed and large enough to matter when you’re sizing against a calculated load or coordinating with an upstream device.
One number, segment by segment
| Segment | Value | Meaning | Page |
|---|---|---|---|
| Bulletin | 140G- | MCCB | p.32 |
| Frame | G | Frame G, 125 A | p.32 |
| Interrupting code | 3 | 35 kA at 480 V (65 kA at 240 V, 14 kA at 600Y/347 V) | pp.32, 33 |
| Protection type | C | Fixed thermal/fixed magnetic | p.32 |
| Poles | 3 | 3 poles | p.32 |
| Rated current | C30 | 30 A | pp.32, 33 |
140G-G3C3-C30 is printed in Table 17 (p.33).
Eaton Power Defense
Format: PD certifications frame poles interrupting rating continuous current trip unit terminals, for example PDG13M0125TFFJ. Source: Eaton Volume 4 Tab 2, CA08100005E (2026-04), “Catalog Number / Product Selection” for each frame (V4-T2-23 frame 1, V4-T2-31 frame 2, V4-T2-44 frame 3, V4-T2-58 frame 4). Eaton presents it “as a tool to develop catalog numbers”. Electronic (PXR) trip units are adjustable and go through our Parts Check.
| Segment | Code | Meaning | Page |
|---|---|---|---|
| Product series | PD | Power Defense | V4-T2-23 |
| Certifications / standards | G / F / D | G = UL/CSA/IEC (frame 1), UL/CSA/IEC/CCC (frames 2 to 4); F = 100% UL/CSA rated (frame 3); D = UL/CSA, rated to 240 V AC (frames 2, 3) | V4-T2-23, 31, 32, 44 |
| Frame size | 1 / 2 / 3 / 4 | 125 A / 225 A / 400 A and 600 A constructions / 800 A | V4-T2-22, 30, 43, 58 |
| Poles | 1 / 2 / 3 / 4 / 0 / 6 | 1-pole, 2-pole, 3-pole, 4-pole (100% N), 4-pole (0% N), 4-pole (60% N); not every frame takes every option | V4-T2-23, 31, 44, 58 |
| Interrupting rating (480 V) | C / F / G / K / M / N / P | 18 / 25 / 35 / 50 / 65 / 85 / 100 kA (C on frame 1 only; frame 4: G, K, M) | V4-T2-23, 31, 44, 58 |
| Continuous current | 0015–0800 | Four digits in amperes, for example 0125 = 125 A. Frame 3 also prints H250 to H400 (high override, 600 A construction). | V4-T2-23, 31, 44, 58 |
| Trip unit | TFF / TFA | TFF = Fixed thermal / Fixed magnetic (frames 1, 2). TFA = Fixed thermal / Adjustable magnetic (frames 3, 4). | V4-T2-23, 31, 44, 58 |
| Trip unit, not on this page | VFF / VFA | 50 °C fixed thermal versions, marked “(non UL)” | V4-T2-23, 31, 44, 58 |
| Terminals | N / J / K / L | No terminals / line and load terminals / line only terminals / load only terminals | V4-T2-23 |
One number, segment by segment
| Segment | Value | Meaning | Page |
|---|---|---|---|
| Product series | PD | Power Defense | V4-T2-23 |
| Certifications | G | UL/CSA/IEC | V4-T2-23 |
| Frame | 1 | Frame 1, 125 A | V4-T2-23 |
| Poles | 3 | 3-pole | V4-T2-23 |
| Interrupting rating | M | 65 kA at 480 V (25 kA at 600Y/347 V) | V4-T2-22, 23 |
| Continuous current | 0125 | 125 A | V4-T2-23 |
| Trip unit | TFF | Fixed thermal / fixed magnetic | V4-T2-23 |
| Terminals | J | Line and load terminals | V4-T2-23 |
PDG13M0125TFFJ is printed as the key example on V4-T2-23.
Eaton Series G EG
Format: E standard performance poles amperes trip unit terminations, for example EGH3015FFG. Source: Eaton Volume 4 Tab 2, CA08100005E (2026-04), “Catalog Number Selection” on page V4-T2-170. Eaton notes it is “an aid to understanding catalog numbers” and not for building them.
| Segment | Code | Meaning | Page |
|---|---|---|---|
| Frame | E | EG frame | V4-T2-170 |
| Standard / application | G | IEC/CE/UL/CSA | V4-T2-170 |
| Performance (kA at 480 V) | B / E / S / H / C | 18 / 25 / 35 / 65 / 100 (at 240 V: 25 / 35 / 85 / 100 / 200) | V4-T2-163, 170 |
| Number of poles | 1 / 2 / 3 / 4 | One / two / three / four, neutral 0% protected | V4-T2-170 |
| Amperes | 015–125 | 15 to 125 A. 016, 032, 063 and 160 “cannot be UL rated”. | V4-T2-170 |
| Trip unit | FF / AF | FF = fixed fixed (fixed thermal, fixed magnetic). AF = adjustable thermal, fixed magnetic, and “Adjustable thermal are not UL listed”. | V4-T2-170, 171 |
| Terminations / hardware | G / M / E / B | G = line/load standard terminals, metric hardware; M = metric end caps; E = imperial end caps; B = bolt-on | V4-T2-170 |
One number, segment by segment
| Segment | Value | Meaning | Page |
|---|---|---|---|
| Frame | E | EG frame | V4-T2-170 |
| Standard | G | IEC/CE/UL/CSA | V4-T2-170 |
| Performance | H | 65 kA at 480 V | V4-T2-163, 170 |
| Poles | 3 | Three poles | V4-T2-170 |
| Amperes | 015 | 15 A | V4-T2-170 |
| Trip unit | FF | Fixed thermal, fixed magnetic | V4-T2-170, 174 |
| Terminations | G | Line/load standard terminals, metric hardware | V4-T2-170 |
EGH3015FFG is printed in the EG-Frame 70/65 table (V4-T2-174) and as the key example on V4-T2-170.
Schneider Electric (Square D) PowerPacT B-frame and Q-frame
Format: frame interrupting rating termination poles voltage amperage [suffix], for example BDL36100. Source: Square D Digest 179, Section 07 (2026-09), Table 7.48 “Common Catalog Numbering System for PowerPacT Circuit Breakers” (p.7-33), with the B-frame tables on p.7-34 and the Q-frame tables on p.7-41.
| Segment | Code | Meaning | Page |
|---|---|---|---|
| Frame | B / Q | 125 A frame / 250 A frame (the key also lists H, J, L, M, P and R) | p.7-33 |
| Interrupting rating, B-frame | D / G / J / K | 18 / 35 / 65 / 65 kA at 480 V (multi-pole); K is 15–30 A, 1- and 2-pole | p.7-34, Table 7.51 |
| Interrupting rating, Q-frame | B / D / G / J | 10 / 25 / 65 / 100 kA at 240 V | p.7-41, Table 7.67 |
| Termination, B-frame | A / F / L / M / P | I-Line / no lugs (terminal nut kit both ends) / EverLink lugs both ends / EverLink lugs ON end, nut kit OFF end / nut kit ON end, EverLink lugs OFF end | p.7-34, Table 7.49 |
| Termination, Q-frame | A / E / F / L / M / P | I-Line / bolt-on I-Line / no lugs / lugs both ends / lugs ON end, studs OFF end / lugs OFF end, studs ON end | p.7-41, Table 7.68 |
| Poles | 1 / 2 / 3 / 4 | 1-pole to 4-pole | p.7-33 |
| Voltage | 4 / 6 | 480 V / 600 V. Q-frame numbers carry 2 in this place (for example QGL32200); the key doesn’t list 2, and the Q-frame is a 240 Vac breaker. | pp.7-33, 7-41 |
| Amperage | 015–250 | Three digits, for example 100 = 100 A | p.7-33 |
| Lug option suffix, B-frame | LU / LV / LW / LC / LH | Control wire terminal ON end / OFF end / both ends; copper mechanical lugs; aluminum mechanical lugs. No suffix = EverLink lugs both ends. | p.7-34, Table 7.50 |
One number, segment by segment
| Segment | Value | Meaning | Page |
|---|---|---|---|
| Frame | B | B-frame, 125 A | p.7-33 |
| Interrupting rating | D | 18 kA at 480 V (25 kA at 240 V, 14 kA at 600Y/347 V) | p.7-34 |
| Termination | L | EverLink lugs both ends | p.7-34 |
| Poles | 3 | 3-pole | p.7-33 |
| Voltage | 6 | 600 V in the key; the B-frame is rated up to 600Y/347 Vac | pp.7-33, 7-34 |
| Amperage | 100 | 100 A | p.7-34 |
BDL36100 is printed in Table 7.52 (p.7-34) and as the example on the same page.
Siemens 3VA5
Format: 3VA then digits and letters in fixed positions, for example 3VA5140-5ED31-0AA0. Source: Siemens Industrial Controls catalog Section 17 (2026-02), “Catalog Numbering Logic” on pages 17/14 and 17/15.
| Position | Code | Meaning | Page |
|---|---|---|---|
| Breaker designation | 4 / 5 / 6 | Thermal magnetic panelboard breakers / thermal magnetic (cable-in cable-out) breakers / electronic trip breakers | p.17/14 |
| Frame size | 1 / 2 / 3 / 4 / 5 / 7 / 8 / 9 | 125/150 A / 250 A / 400 A / 600 A / 800 A / 1200 A / 1600 A / 2000 A (6 = 1000 A) | p.17/14 |
| Rated current | two digits | Read with the frame: 3VA5140 is 40 A, 3VA5340 is 400 A. 15 A is 95; 100, 110 and 125 A are 10, 11 and 12 on the 3VA51. | pp.17/14, 17/16 |
| Interrupting capacity at 480 V (3VA5) | 4 / 5 / 6 / 7 | 25 / 35 / 65 / 100 kA | p.17/14 |
| Trip unit | ED / EC | TM210 FTFM: fixed thermal, fixed magnetic / TM230 FTAM: fixed thermal, adjustable magnetic | p.17/15 |
| Trip unit, 100% neutral | GD / GC | TM210 / TM230 with 100% neutral | p.17/15 |
| Trip unit, adjustable (not on this page) | EF / GF | TM240 ATAM: adjustable thermal, adjustable magnetic | p.17/15 |
| Number of poles | 1 / 2 / 3 / 4 / 5 / 6 | 1, 2, 3, 4 pole / 1-in-2 pole / 2-in-3 pole | p.17/15 |
| Connection technology | 1 / 2 / 6 | No wire connector / nut keeper kit, line and load / wire connector, line and load | p.17/15 |
| Regional specifics | 0 / 1 / 2 | Standard / NAVAL/50C (3VA41/3VA5) / 100% rated | p.17/15 |
| Auxiliary releases; auxiliary/alarm switches | A; A0 | Without; without | p.17/15 |
Interrupting classes by name: 3VA51 S / M / H = 25 / 35 / 65 kA at 480 V (p.17/17); 3VA52 to 3VA59 M / H / C = 35 / 65 / 100 kA at 480 V (pp.17/27, 17/33, 17/37, 17/41, 17/47, 17/51, 17/55).
One number, segment by segment
| Position | Value | Meaning | Page |
|---|---|---|---|
| Family | 3VA | 3VA molded case circuit breaker | p.17/14 |
| Breaker designation | 5 | Thermal magnetic (cable-in cable-out) | p.17/14 |
| Frame size | 1 | 125/150 A frame (3VA51) | p.17/14 |
| Rated current | 40 | 40 A | pp.17/14, 17/17 |
| Interrupting capacity | 5 | 35 kA at 480 V (M class) | pp.17/14, 17/17 |
| Trip unit | ED | TM210 FTFM, fixed thermal and fixed magnetic | p.17/15 |
| Poles | 3 | 3 pole | p.17/15 |
| Connection | 1 | No wire connector | p.17/15 |
| Regional specifics | 0 | Standard | p.17/15 |
| Auxiliary releases; switches | AA0 | Without auxiliary releases; without auxiliary/alarm switches | p.17/15 |
3VA5140-5ED31-0AA0 is printed in the 3VA51 3-pole table (p.17/17).
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Last updated 2026-10-28.