UL 140 Relocking Devices for Safes and Vaults

standard by Underwriters Laboratories, 11/25/1997

Full Description

These requirements cover relocking devices for the following: Light vault doors, Heavy vault doors, and Safes or chests.

Relocking devices are intended to relock the bolt mechanism or door of a vault, safe, or chest in the event that the combination lock is subjected to attack.

A product that contains features, characteristics, components, materials, or systems new or different from those in use when the Standard was developed, and thatinvolves a risk of fire, electric shock, or injury to persons, shall be evaluated using the appropriate additional component and end-product requirements as determinednecessary to mai ntain the level of safety for the user of the product as originally anticipated by the intent of this Standard.