TDS PDF

Ground-Fault Circuit-Interrupters (Edition 5, published May 17, 2016; revisions through August 25, 2025). Original standard UL 943 2025-08 in PDF full version. Additional info + preview on request

Document status: Active

Leakage Current Protection Devices (Edition 1, December 29, 1993). Original standard UL 943A 1993-12 in PDF full version. Additional info + preview on request

Document status: Active

Appliance Leakage-Current Interrupters (Edition 3, December 4, 2017). Original standard UL 943B 2017-12 in PDF full version. Additional info + preview on request

Document status: Replaced by

Appliance Leakage-Current Interrupters (Edition 3, published December 4, 2017; revisions through January 10, 2023; ANSI reaffirmation 2023). Original standard UL 943B 2023-01 in PDF full version. Additional info + preview on request

Document status: Replaced by

Appliance Leakage-Current Interrupters (Edition 4, April 29, 2026). Original standard UL 943B 2026-04 in PDF full version. Additional info + preview on request

Document status: Active

Energy Storage Systems and Equipment (Edition 2, February 27, 2020). Original standard UL 9540 2020-02 in PDF full version. Additional info + preview on request

Document status: Replaced by