| General > General Technical Chat |
| Please help identifying these two marks on a step up transformer |
| (1/1) |
| Goophy629:
They are on a 110/120v to 220/240v step up transformer (those travel size thing), not sure what they really mean. |
| bob91343:
I suspect the second one indicates for indoor use only. |
| Cubdriver:
The first one appears to indicate that it is an isolation transformer (no electrical connection between primary and secondary) https://www.iso.org/obp/ui#iec:grs:60417:5222 -Pat |
| old-jo:
For the first symbol: http://www.cycloflow.com/2014/11/markings-and-symbols-on-transformers.html --- Quote --- * Equipment designed for indoor use only. * The IEC 60417-5957 (ISO symbol does not have the arrow) --- End quote --- The ISO/IEC symbol that does not have inside-pointing arrow: https://www.iso.org/obp/ui#iec:grs:60417:5957 |
| Goophy629:
:-+ thanks all for the info |
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