Products > Transformers
Transformer Brochure: Semper Fi Indoor Transformers
Contractors: Use this handout before running wires
Purchasing Transformers? Use this chart to help specify part numbers
Industry Leading Warranties
Many of the Semper Fi transformers are backed by industry-leading warranties of 25-years (indoor units) and 10-years (outdoor units).
A magnetic transformer in its basic form is a core and coil that steps AC voltages up or down. The number of turns around the core (turns ratio) determines performance.
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