UL 508A Frequently Asked Questions

Q. Does NEC Article 409 and UL508A include fire alarm control panels that are mounted into large industrial control panels and power supplies, IO terminals and other devices?

A. In the newest version of UL508A, fire protection equipment is exempt and you should refer back to UL864 for fire protection signaling systems.

Category: Application

Keywords: fire alarm, fire protective, power supplies, I/O terminals