
RS Breakers & Controls carries a comprehensive inventory of new, reconditioned, and obsolete k-rated transformers from all major manufacturers. As Canada’s leading supplier of transformers, our technical team is available 24/7 to help you identify the correct transformer. All previously used units are tested to ANSI and CSA standards with a detailed test report and full 2-year warranty.
Within our extensive transformers inventory, k-rated transformers are units designed to handle harmonic currents from non-linear loads like computers, VFDs, and LED lighting, with K-factor ratings (K-4, K-13, K-20, K-30) indicating harmonic handling capacity. Proper selection requires matching voltage, kVA rating, impedance, and application requirements to ensure safe and efficient operation.
RS Breakers & Controls maintains one of Canada’s deepest inventories of transformers, including k-rated transformers across all major manufacturers. Whether you need an emergency replacement or are planning a new installation, our transformers experts deliver fast.
Our reconditioning and testing services for transformers ensure every previously used unit meets ANSI and CSA safety standards before it ships, backed by a full 2-year warranty and detailed test report.
Contact RS Breakers & Controls at sales@rsbreakers.com or call 905-501-1510. We ship from our Mississauga, Saskatoon, and Calgary warehouses.


