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UL 294B

1st Edition, February 2, 2015

Complete Document

UL Standard for Safety Power Over Ethernet (PoE) Power Sources for Access Control Systems and Equipment

Includes all amendments and changes through Revision Page(s) , February 2, 2015


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Product Details:

  • Revision: 1st Edition, February 2, 2015
  • Published Date: February 2, 2015
  • Status: Active, Most Current
  • Document Language: English
  • Published By: UL (UL)
  • Page Count: 18
  • ANSI Approved: Yes
  • DoD Adopted: No

Description / Abstract:

This standard provides requirements for the evaluation of Power over Ethernet (PoE) power sources for access control systems and equipment. The power sources may be provided integral with the access control equipment or as a separate device supplying power. The equipment is intended to comply with Article 725.121, Power Sources for Class 2 and Class 3 Circuits, of the National Electrical Code, NFPA 70. Equipment covered by this standard provides a nominal source voltage of 48 or 53 V DC.

This standard applies to all connected equipment and interconnections necessary to ensure normal operation of the PoE powered control system.

PoE sources covered by this standard are not intended to be located in an outdoor environment.

The PoE source shall meet the applicable requirements of the Standard for Access Control System Units, UL 294. See 2.2.4 and 2.2.5.

Exception: Outdoor Use Equipment; Sections 70 – 81 of UL 294 inclusive are not applicable.