TDS PDF

Nonmetallic Outlet Boxes, Flush-Device Boxes, and Covers (Edition 4, published April 8, 2014; revisions through November 30, 2018). Original standard UL 514C 2018-11 in PDF full version. Additional info + preview on request

Document status: Replaced by St UL 514C 2026-07

Nonmetallic Outlet Boxes, Flush-Device Boxes, and Covers (Edition 4, published April 8, 2014; revisions through August 18, 2020). Original standard UL 514C 2020-08 in PDF full version. Additional info + preview on request

Document status: Replaced by St UL 514C 2026-07

Heat Detectors for Fire Protective Signaling Systems (Edition 7, published February 19, 1999; revisions through March 24, 2021). Original standard UL 521 2021-03 in PDF full version. Additional info + preview on request

Document status: Replaced by St UL 521 2025-10

Flexible Metallic Hose (Edition 10, published December 5, 2014; revisions through December 10, 2019). Original standard UL 536 2019-12 in PDF full version. Additional info + preview on request

Document status: Replaced by

Flexible Metallic Hose (Edition 11, August 9, 2021). Original standard UL 536 2021-08 in PDF full version. Additional info + preview on request

Document status: Replaced by

Single and Multiple Station Heat Alarms (Edition 7, published April 28, 2017; revisions through May 22, 2018). Original standard UL 539 2018-05 in PDF full version. Additional info + preview on request

Document status: Replaced by St UL 539 2025-01