Eaton Magnum MW (IEC 60947-2) Catalog Number Decoder
Decode IEC 60947-2 Magnum MW catalog numbers. Supports 49 ampere ratings with fixed/draw-out mounting and motorized/manual operation. The decoder is free, needs no login, and runs entirely in your browser — paste a catalog number such as MWI8203LEA and it returns every field it can resolve, plus a position-by-position map showing which character carried which value.
- Manufacturer
- Eaton
- Frames
- Magnum MW (IEC)
- Ratings
- 800A – 6,300A
What this decoder identifies
- IEC 60947-2 Magnum MW breaker or cassette
- Frame ampere rating across 49 supported ratings, 800A through 6,300A
- Interrupting and short-time (Icw) ratings
- Fixed or draw-out mounting
- Motorized or manual operation
- Trip unit and accessory configuration
Also sold or stamped as
The same breaker family appears under several names depending on the era of the nameplate. This decoder covers numbers labelled:
- Cutler-Hammer Magnum MW
- Magnum IEC
- Magnum cassette
- MWI
Eaton Magnum MW (IEC 60947-2) — common questions
Does this decoder read the cassette as well as the breaker?
Yes. The Magnum MW decoder is dual-mode — it reads both the breaker catalog number and the draw-out cassette number, and reports the amp range each one covers.
Why does an IEC Magnum use a different number from a Magnum DS?
The IEC 60947-2 Magnum MW is a separate catalog system from the ANSI/UL Magnum DS, with its own ratings structure. Entering an MW number into the Magnum DS decoder, or the reverse, returns the wrong frame.
Related resources
Free manuals for this equipment
Eaton Magnum manuals and renewal-parts catalogs
All breaker decoders
Siemens, Eaton / Cutler-Hammer, GE and Square D catalog-number tools
Working in a switchgear room with no signal? Every decoder also runs offline from a local folder.
Open the Offline KitCan't read the nameplate?
If the plate is painted over, corroded or missing digits, send us what you can read or a photo — our team identifies legacy and obsolete breakers every day, and sources the new-surplus or reconditioned replacement.