Three Phase Transformers Three-phase transformers are passive machines with a three-phase AC (alternating current) electrical system that transfers electrical power between its three circuits without changing frequency, thereby providing stable and device-safe electricity to any type of building. No matter the design, voltage, or load-bearing capabilities you need; Surplus Record has the right three phase transformers for you! Check out our 7,341 Three Phase Transformer listings today!Categories★ = Our Most Popular Categories! Pole Mount, Three Phase Transformers (6) Transformers, Three Phase, 60 Cycle (4,025) Pad Mount Transformers, Three Phase, 60 Cycle, (Padmount) (3,307) Also See Single Phase, Pad Mount Transformers, 60 Cycle, (Padmount) (275) Transformers, Three Phase, 50 Cycle (3)Popular Three Phase Transformers This Month 42/56/70 MVA 230 KV Wye Primary, 13.8 KV Secondary ... 60 Hz Three Phase Transformers 30000/40000/50000/56000 kVA, 115000 Delta Primary ... 60 Hz Three Phase Transformers 750 KVA 4160 Delta Primary, 480Y/277 Secondary, Pad ... 60 Hz Three Phase Padmount Transformers 78 KVA 230X460 Delta Primary, 480Y/27 Secondary ... 60 Hz Three Phase Transformers 2500 KVA 12470 Primary, 480/277 Secondary, ABB, FR3 ... 60 Hz Three Phase Padmount Transformers 145 KVA 380 Primary, 460Y/266 Secondary, Hevi-Duty 3 ... 50 Hz Three Phase Transformers 3000 KVA 13800 Delta Primary, 415Y/239 Secondary ... 60 Hz Three Phase Padmount Transformers 500 KVA 12470 Delta Primary, 208Y/120 Secondary ... 60 Hz Three Phase Padmount Transformers 1000 KVA 34500GRDY/19920 Primary, 480Y/277 Secondary ... 60 Hz Three Phase Padmount Transformers 500 KVA 12470GrdY/7200 Primary, 480Y/277 Secondary ... 60 Hz Three Phase Padmount Transformers 2500 KVA 34500 Primary, 575Y/332 Secondary, ABB, pad ... 60 Hz Three Phase Padmount Transformers 25/33.33/41.67 MVA 132000 Primary, 13800 Secondary ... 60 Hz Three Phase Transformers 1500 KVA 13200 Primary, 480 Secondary, Eaton, 3 phase ... 60 Hz Three Phase Transformers 12 MVA 67000x33500 Primary, 4160Y/2400x13090Y/7560 ... 60 Hz Three Phase Transformers 1500 KVA 8320Y/4800 Primary, 480Y/277 Secondary ... 60 Hz Three Phase Padmount Transformers 2000 KVA 13800 Primary, 600Y/347 Secondary, PTI ... 60 Hz Three Phase Padmount Transformers 75 KVA 480 Primary, 380Y/219 Secondary, MGM ... 60 Hz Three Phase Transformers 3000 KVA 13800/12470 Delta Primary, 415 Wye Secondary ... 60 Hz Three Phase Padmount Transformers 12 KVA 575/204 Primary, 380 Secondary, Trasfor ... 50 Hz Three Phase Transformers 75 KVA 480 Delta Primary, 208Y/120 Secondary, Square D ... 60 Hz Three Phase Transformers 75 KVA 240 Delta Primary, 480Y/277 Secondary, Step Up ... 60 Hz Three Phase Transformers 2500 KVA 12470 Primary, 2x460 Delta Secondary, Eaton ... 60 Hz Three Phase Transformers 5000 KVA 4160 Delta Primary, 600Y/346 Secondary ... 50 Hz Three Phase Transformers