1 Scope

1.1 These requirements cover the following devices intended for installation and operation on horizontal and vertically opening hoistway doors and gates and car doors and gates in accordance with the requirements of ASME A17.1/CSA B44:

1. a) Hoistway Door Interlocks;

2. b) Hoistway Door Closed Detection Means;

3. c) Hoistway Door Combination Mechanical Lock and Electric Contacts;

4. d) Hoistway Gate Electric Contacts;

5. e) Car Door Interlocks;

6. f) Car Door Closed Detection Means; and

7. g) Car Gate Closed Detection Means.

Summary of Topics

This new Twelfth Edition of ANSI/UL 104, Standard for Elevator Door Locking Devices and Door or Gate Closed Detection Means, dated November 30, 2023 is being issued as first time UL/CSA bi-national standard.