• Understanding the UL 325 Rules for Safety
  • Author avatar
    Trinity Blog
  • UL 325 loops photo eyes bumper edgesUnderstanding the UL 325 Rules for Safety
Understanding the UL 325 Rules for Safety

 Prepared by Cathie Johnson

May 26th , 2016

When it comes to owning and operating an electric gate, door, or window, safety should always be a top priority. These complicated pieces of equipment are made from strong, durable materials. Electric gates are built to last. This means they are not a toy and should be handled with great care.


Underwriter Laboratories (or “UL” for short) teamed up with leaders in the industry and created a safety standard for all electric gates, doors and other opening and closing devices. This standard exists to ensure those who install these devices and those use them on a day-to-day basis stay as safe as possible. These standards help prevent fires and other electrical hazards.


These safety standards are in place to aid in the safety of everyone involved. From the manufacturer, the designer, the dealer, and the installer; the safety standards established by the leaders in the industry will help make sure everyone has a successful and safe experience with electric gates and other such devices.


These standards apply to a collection of gate classifications. The classifications include residential gate operators, commercial/general access vehicular gate operators, industrial/limited access vehicular gate operators and restricted access vehicular gate operators.


An example of the safety standards is the requirement of a non-contact sensor ─ whether a photoelectric sensor or equivalent ─ that is capable of detecting an obstructing in the path of the electric gate. This sensor will then cue the gate to stop and reverse its course within a maximum of 2 seconds of sensing the object regardless if the gate was in the opening direction or the closing direction. For those gates without a non-contact sensor, they will possess a contact sensor or entrapment protection.


Additionally, warning signs supplied with the gate must be displayed and installed in visible areas of the gate. Alarms attached to certain gates, such as a siren, bell or horn, must fall within a specific frequency range and contain a certain sound level pulsation.


Are you not sure if the equipment being used on a project meets the UL 325 safety standards? One way to ensure the gate you are installing has met the standards is by checking to see if there is a UL mark or a mark from an independent testing agency on the equipment. Without this mark you can’t be certain if the piece of equipment has met the safety standards put into place by Underwriters Laboratories.


No matter the electric gate, door, or window being involved one thing is certain: safety should be a priority at all times. The UL 325 safety standards have been developed to help all people involved with these complex pieces of equipment stay as safe as possible.


If you’re not sure if your equipment meets the safety standards, get in touch with a nearby security gate company, such as Trinity Gate and Door, who can help you out. Need help installing, upgrading, or repairing your existing electronic access system? Give us a call here at Trinity Gate and Door at (425) 881-3554 right away! Our family-owned and operated company has been helping clients across the Greater Northwest since 1979 get the safety they want and the quality they deserve.




  • Author avatar
    Trinity Blog
  • UL 325 loops photo eyes bumper edgesUnderstanding the UL 325 Rules for Safety