LED drivers are listed in the SAM (Sign Component Manual) with evaluation and certification to UL879 standards. The NPF/PWM-40/60-12/24 product series supports both constant voltage and constant current applications, and the PWM series is suitable for powering all kinds of LED strips. Both the NPF and PWM series have IP67 ingress protection ratings for operation in dry, damp or wet locations. The NPF and PWM series also support 3-in-1 dimming with dim-to-off features.
The Sign Component Manual (also known as SAM) is a database that records all qualified components used in building electric signs. The SAM list products are tested to UL879 for safety and installation requirements outlined by the National Electrical Code, NFPA 70. LED sign manufacturer can use the SAM as a buyer and designer’s guide. The manufacturing process can also be streamlined because the Conditions of Acceptability for each component is clearly stated in the SAM. More importantly, if a sign is built with components from the SAM, then the sign is exempt from safety tests, and the UL certification process can be expedited significantly. For large sign installations, it is also possible for a local safety representative to conduct onsite inspection for compliance.
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510-683-8886