Standard and Flex Series General Purpose Distribution Transformers
OnAugust 4, 2026
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Delta General Purpose transformers deliver energy efficient solutions to meet the demands of commercial, institutional, and industrial applications. Our portfolio offers two General Purpose solutions, each engineered for performance, durability and installation flexibility:
- Low Voltage General Purpose: Standard solution for broad commercial applications.
- Low Voltage Distribution Flex Series: Utilizes an EVI insulation process, providing enhanced impregnation properties and added features.

New General Purpose Standard Series:
Our new General Purpose Standard Series replaces the previous Commercial Series and delivers greater value with enhanced standard features, including a 10-year warranty and 10kV BIL, providing greater value and protection:
- 10-year warranty
- 10kV BIL protection
- Factory-installed installation features
- CSA and UL compliance
- Type 3R enclosure as standard
- North American manufacturing

Low Voltage Distribution Flex Series:
Our existing General Purpose transformer line is now named “Flex Series” to better reflect the extensive customization options and application flexibility it already provides:
- EVI insulation process
- K-factor options
- Multiple temperature rise configurations
- Custom voltages and impedances
- Specialty enclosure options
- Thermal monitoring and other value-added options
- Proudly built in Canada