Select a product to configure its Rex catalog part number.
Configure a general purpose isolation transformer to build its Rex catalog part number. Codes follow the Rex catalog numbering system.
NRCan / DOE (Z3) levels are not available for Type 4 / 4X enclosures.
Selecting a K-factor rating of K4 or higher makes this a K-Factor Rated Isolation transformer — a different product line built for non-linear (harmonic) loads. The part number is assembled correctly either way; for K-rated units you may prefer the dedicated K-Factor Rated Isolation configurator.
This tool assembles a catalog part number from the options you select, following the Rex Power Magnetics catalog numbering system. Not every combination of options is necessarily a standard or available product, and some configurations may require review or a custom quote. For a voltage not listed, the code ‘X’ is used and the value specified separately. Rex Power Magnetics makes no representations as to the accuracy of the information generated by this tool; part numbers should be confirmed with Rex before ordering. Contact Rex Power Magnetics to verify availability, pricing, and specifications.
Configure a K-factor rated isolation transformer to build its Rex catalog part number. Codes follow the Rex catalog numbering system.
NRCan / DOE (Z3) levels are not available for Type 4 / 4X enclosures.
Selecting K1 means this is no longer a K-factor rated transformer — it’s a standard general purpose isolation transformer. The part number still assembles correctly; for a non-K-rated unit you may prefer the General Purpose Isolation configurator.
This tool assembles a catalog part number from the options you select, following the Rex Power Magnetics catalog numbering system. Not every combination of options is necessarily a standard or available product, and some configurations may require review or a custom quote. For a voltage not listed, the code ‘X’ is used and the value specified separately. Rex Power Magnetics makes no representations as to the accuracy of the information generated by this tool; part numbers should be confirmed with Rex before ordering. Contact Rex Power Magnetics to verify availability, pricing, and specifications.
Configure a drive isolation transformer (DIT) to build its Rex catalog part number. Codes follow the Rex catalog numbering system.
Drive isolation transformers are exempt from US DOE 2016 efficiency. For use in Canada, select Z3 (NRCan 2019); Z3 may also be chosen voluntarily for higher efficiency.
This tool assembles a catalog part number from the options you select, following the Rex Power Magnetics catalog numbering system. Not every combination of options is necessarily a standard or available product, and some configurations may require review or a custom quote. For a voltage not listed, the code ‘X’ is used and the value specified separately. Rex Power Magnetics makes no representations as to the accuracy of the information generated by this tool; part numbers should be confirmed with Rex before ordering. Contact Rex Power Magnetics to verify availability, pricing, and specifications.
Configure an encapsulated transformer to build its Rex catalog part number. Codes follow the Rex catalog numbering system.
Encapsulated transformers are exempt from DOE and NRCan efficiency requirements.
This tool assembles a catalog part number from the options you select, following the Rex Power Magnetics catalog numbering system. Not every combination of options is necessarily a standard or available product, and some configurations may require review or a custom quote. For a voltage not listed, the code ‘X’ is used and the value specified separately. Rex Power Magnetics makes no representations as to the accuracy of the information generated by this tool; part numbers should be confirmed with Rex before ordering. Contact Rex Power Magnetics to verify availability, pricing, and specifications.
Configure an industrial control / machine tool transformer to build its Rex catalog part number. Codes follow the Rex catalog numbering system.
This tool assembles a catalog part number from the options you select, following the Rex Power Magnetics catalog numbering system. Not every combination of options is necessarily a standard or available product, and some configurations may require review or a custom quote. For a voltage or requirement not listed, the code ‘X’ is used and the detail specified separately. Rex Power Magnetics makes no representations as to the accuracy of the information generated by this tool; part numbers should be confirmed with Rex before ordering. Contact Rex Power Magnetics to verify availability, pricing, and specifications.
Configure an autotransformer to build its Rex catalog part number. Codes follow the Rex catalog numbering system.
Single-phase autotransformers are copper only.
Encapsulated units use 130 °C standard rise.
Autotransformers are exempt from North American efficiency regulation.
Encapsulated units are Type 3R (or Type 4 / 4X); other enclosures don’t apply.
This tool assembles a catalog part number from the options you select, following the Rex Power Magnetics catalog numbering system. Not every combination of options is necessarily a standard or available product, and some configurations may require review or a custom quote. For a voltage not listed, the code ‘X’ is used and the value specified separately. Rex Power Magnetics makes no representations as to the accuracy of the information generated by this tool; part numbers should be confirmed with Rex before ordering. Contact Rex Power Magnetics to verify availability, pricing, and specifications.
Configure a Mini Power Center to build its Rex catalog part number. Codes follow the Rex catalog numbering system.
This tool assembles a catalog part number from the options you select, following the Rex Power Magnetics catalog numbering system. Not every combination of options is necessarily a standard or available product, and some configurations may require review or a custom quote. For a voltage not listed, the code ‘X’ is used (600 V max) and the value specified separately. Rex Power Magnetics makes no representations as to the accuracy of the information generated by this tool; part numbers should be confirmed with Rex before ordering. Contact Rex Power Magnetics to verify availability, pricing, and specifications.
Configure a control power transformer (CPT) to build its Rex catalog part number. Codes follow the Rex catalog numbering system.
This tool assembles a catalog part number from the options you select, following the Rex Power Magnetics catalog numbering system. Not every combination of options is necessarily a standard or available product, and some configurations may require review or a custom quote. For a voltage not listed, the code ‘X’ is used and the value specified separately. Rex Power Magnetics makes no representations as to the accuracy of the information generated by this tool; part numbers should be confirmed with Rex before ordering. Contact Rex Power Magnetics to verify availability, pricing, and specifications.
Configure a motor starting autotransformer to build its Rex catalog part number. Codes follow the Rex catalog numbering system.
This tool assembles a catalog part number from the options you select, following the Rex Power Magnetics catalog numbering system. Not every combination of options is necessarily a standard or available product, and some configurations may require review or a custom quote. For a voltage not listed, the code ‘X’ is used and the value specified separately. Rex Power Magnetics makes no representations as to the accuracy of the information generated by this tool; part numbers should be confirmed with Rex before ordering. Contact Rex Power Magnetics to verify availability, pricing, and specifications.