Collection: Jefferson Electric

Rock Lighting carries Jefferson Electric three-phase ventilated dry-type transformers designed for commercial and industrial applications. These DOE-compliant units feature 480V delta primary to 208Y/120V secondary configurations, with capacity ratings spanning 75 KVA through 1000 KVA to accommodate diverse load requirements. Ventilated construction enables efficient cooling for continuous operation in demanding environments.

Ideal for contractors, electricians, and facility managers, these transformers deliver reliable power distribution for commercial buildings, manufacturing facilities, and industrial installations. Jefferson Electric's proven engineering ensures consistent performance and regulatory compliance. Rock Lighting provides detailed specifications and quote support to help you select the right transformer capacity and configuration for your project requirements.