What is the maximum secondary circuit voltage for sign transformers?

The maximum secondary circuit voltage for sign transformers is 15,000 volts. This specification is rooted in the safety standards and regulations governing electrical installations, particularly for transformers used in signage and similar applications. The limit on secondary voltage is established to ensure safe operation and to minimize the risk of electrical hazards, such as shock or fire, that can occur at higher voltage levels.

Sign transformers are designed specifically to power neon signs and other lighting devices, and 15,000 volts is deemed the maximum allowable voltage to ensure efficiency while maintaining safety. Understanding these voltage limits and their applications is crucial for anyone working with electrical equipment and installations, particularly in compliance with the National Electrical Code (NEC) and local regulations. This knowledge helps professionals ensure that they are selecting the appropriate equipment and adhering to safety standards in their work.