Allen-Bradley / Rockwell Automation Datasheets for Isolation Transformers

Isolation transformers provide electrical decoupling or isolation to two connected circuits. They have a turn ratio of 1:1.
Isolation Transformers: Learn more

Product Name Notes
Isolation Transformer -- 1321-3TH118-AA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 118 KVA, 230VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH118-AB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 118 KVA, 230VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH118-AC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 118 KVA, 230VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH118-BA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 118 KVA, 460VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH118-BB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 118 KVA, 460VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH118-BC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 118 KVA, 460VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH118-CA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 118 KVA, 575VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH118-CB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 118 KVA, 575VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH118-CC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 118 KVA, 575VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH145-AA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 145 KVA, 230VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH145-AB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 145 KVA, 230VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH145-AC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 145 KVA, 230VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH145-BA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 145 KVA, 460VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH145-BB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 145 KVA, 460VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH145-BC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 145 KVA, 460VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH145-CA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 145 KVA, 575VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH145-CB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 145 KVA, 575VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH145-CC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 145 KVA, 575VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH175-AA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 175 KVA, 230VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH175-AB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 175 KVA, 230VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH175-AC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 175 KVA, 230VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH175-BA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 175 KVA, 460VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH175-BB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 175 KVA, 460VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH175-BC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 175 KVA, 460VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH175-CA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 175 KVA, 575VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH175-CB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 175 KVA, 575VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH175-CC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 175 KVA, 575VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH220-AA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 220 KVA, 230VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH220-AB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 220 KVA, 230VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH220-AC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 220 KVA, 230VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH220-BA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 220 KVA, 460VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH220-BB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 220 KVA, 460VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH220-BC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 220 KVA, 460VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH220-CA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 220 KVA, 575VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH220-CB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 220 KVA, 575VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH220-CC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 220 KVA, 575VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH275-AA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 275 KVA, 230VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH275-AB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 275 KVA, 230VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH275-AC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 275 KVA, 230VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH275-BA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 275 KVA, 460VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH275-BB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 275 KVA, 460VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH275-BC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 275 KVA, 460VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH275-CA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 275 KVA, 575VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH275-CB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 275 KVA, 575VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH275-CC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 275 KVA, 575VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH330-AA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 330 KVA, 230VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH330-AB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 330 KVA, 230VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH330-AC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 330 KVA, 230VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH330-BA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 330 KVA, 460VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH330-BB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 330 KVA, 460VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH330-BC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 330 KVA, 460VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH330-CA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 330 KVA, 575VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH330-CB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 330 KVA, 575VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH330-CC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 330 KVA, 575VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TW040-AA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 40 KVA, 230VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TW040-AB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 40 KVA, 230VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TW040-BA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 40 KVA, 460VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TW040-BB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 40 KVA, 460VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TW040-CA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 40 KVA, 575VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TW040-CB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 40 KVA, 575VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TW040-CC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 40 KVA, 575VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH440-AB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 440 KVA, 230VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH440-AC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 440 KVA, 230VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH440-BB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 440 KVA, 460VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH440-BC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 440 KVA, 460VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH440-CB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 440 KVA, 575VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH440-CC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 440 KVA, 575VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TW005-XX Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 5 KVA, 208VAC Primary, 208VAC Secondary
Isolation Transformer -- 1321-3TW005-AB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 5 KVA, 230VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TW005-BA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 5 KVA, 460VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TW005-BB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 5 KVA, 460VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TW005-CA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 5 KVA, 575VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TW005-CB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 5 KVA, 575VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TW005-CC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 5 KVA, 575VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TW051-AA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 51 KVA, 230VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TW051-AB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 51 KVA, 230VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TW051-BA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 51 KVA, 460VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TW051-BB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 51 KVA, 460VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TW051-CA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 51 KVA, 575VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TW051-CB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 51 KVA, 575VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TW051-CC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 51 KVA, 575VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH550-AB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 550 KVA, 230VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH550-AC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 550 KVA, 230VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH550-BB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 550 KVA, 460VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH550-BC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 550 KVA, 460VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH550-CB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 550 KVA, 575VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH550-CC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 550 KVA, 575VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH063-AA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 63 KVA, 230VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH063-AB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 63 KVA, 230VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH063-AC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 63 KVA, 230VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH063-BA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 63 KVA, 460VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH063-BB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 63 KVA, 460VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH063-BC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 63 KVA, 460VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH063-CA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 63 KVA, 575VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH063-CB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 63 KVA, 575VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH063-CC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 63 KVA, 575VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH660-AB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 660 KVA, 230VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH660-AC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 660 KVA, 230VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH660-BB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 660 KVA, 460VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH660-BC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 660 KVA, 460VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH660-CB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 660 KVA, 575VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH660-CC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 660 KVA, 575VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH075-AA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 75 KVA, 230VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH075-AB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 75 KVA, 230VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH075-AC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 75 KVA, 230VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH075-BA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 75 KVA, 460VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH075-BB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 75 KVA, 460VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH075-BC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 75 KVA, 460VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH075-CA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 75 KVA, 575VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH075-CB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 75 KVA, 575VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH075-CC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 75 KVA, 575VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH770-AB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 770 KVA, 230VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH770-AC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 770 KVA, 230VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH770-BB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 770 KVA, 460VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH770-BC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 770 KVA, 460VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH770-CB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 770 KVA, 575VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH770-CC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 770 KVA, 575VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH880-AB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 880 KVA, 230VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH880-AC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 880 KVA, 230VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH880-BB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 880 KVA, 460VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH880-BC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 880 KVA, 460VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH880-CB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 880 KVA, 575VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH880-CC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 880 KVA, 575VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH093-AA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 93 KVA, 230VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH093-AB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 93 KVA, 230VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH093-AC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 93 KVA, 230VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH093-BA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 93 KVA, 460VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH093-BB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 93 KVA, 460VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH093-BC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 93 KVA, 460VAC Primary, 575VAC Secondary
Isolation Transformer -- 1321-3TH093-CA Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 93 KVA, 575VAC Primary, 230VAC Secondary
Isolation Transformer -- 1321-3TH093-CB Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 93 KVA, 575VAC Primary, 460VAC Secondary
Isolation Transformer -- 1321-3TH093-CC Isolation Transformer, 3 Phase, NEMA 3R Enclosure, 93 KVA, 575VAC Primary, 575VAC Secondary