UL 497
Protectors for Communications Circuits
| Org/Number ID | UL 497 |
|---|---|
| Alternate Organization ID / number | ASA C33.22 ANSI/UL |
| Version(s) | 1965; 1979 |
| Bin # | 0396 |
| Comments | |
| Status | Present |
| Record last updated | June 11, 2022, 8:29 pm |
This is not the most recent edition of this standard.
Newer edition note: 2009