Reference Source

IEEE C37.20.3

For IEEE C37.20.3, laboratory is UL LLC; standard title is Metal-Enclosed Interrupter Switchgear, verified against its source on 2026-08-10.

Laboratory
UL LLC verified
Standard number
IEEE C37.20.3 verified
Standard title
Metal-Enclosed Interrupter Switchgear verified
Sourceosha.gov
Verified
Review by
DatasetWhich OSHA NRTL is recognized for which test standard: all 21 labs' scopes of recognition, cross-referenced

What the source says

IEEE C37.20.3 | Metal-Enclosed Interrupter Switchgear |

— osha.gov, retrieved 2026-08-10

Source

Last verified against source: . Due for re-check by . This page as Markdown · OKF bundle · full dataset as JSON.