Transformer Product Information

With a primary objective of providing support to the engineer/designer in selecting, applying and specifying the appropriate transformers for a given project, the included selection guide for Powersmiths’ OPAL Series transformers will yield the optimum performance for the application. To begin with the “Transformer Selection by Application” and make a selection of product based on the characteristics of load, CLICK HERE.

ESaver OPAL™ Series Transformers


ESaver-33L Series

For the typically light loading, K-7 Rated


ESaver-25H Series

For heavy electronic loading, K-13 Rated


T1000-30 Series

Harmonic cancelling, for heavy, harmonic rich loading


ESaver-SOL Series

Photovoltaic application, highest efficiency


ESaver-EV Series

For Level 2 EV charger models 240V & 208V systems


OPAL™ – Optimized Performance for the Application Load

The Powersmiths’ design best practice OPAL™ (Optimized Performance for the Application Load), maximizes transformer energy savings potential, delivering up to 80%+ more savings than existing pre 2007/TP1 for transformer retrofit projects and 25-50% more savings than the new U.S. Department of Energy law (DOE 2016) on New Construction projects.

Recognizing that the transformer has much more impact in an electrical system than just efficiency, OPAL transformers integrate into the system as a whole, providing the benefits of managing impedance, arc flash, fault level, inrush, harmonics, and more.  OPAL is a direct result of and made possible by the tight feedback loop between design, onsite manufacturing, and extensive ongoing real-world operating performance verification.

The result is more savings for the same dollar.

With all of this attention to design engineering and energy performance, Powersmiths can offer a 32 year (prorated) warranty.

This same design intent has led to new transformers with the exacting requirements for new markets such as PhotoVoltaic systems and Electric Vehicle charging.

Powersmiths knows the power quality business. We have been manufacturing the most energy-efficient
transformers in the industry for over 20 years. We have combined this technology with our customer-centric manufacturing philosophy to create a product line that meets the ever-changing demands of our data center clients.

Powersmiths transformers and transformer-based products have become the best choice for energy savings, application specific product enhancements and electromagnetic compatibility for any application, and always with an eye to Power for the Future.


Click on the product names(s) for more information.

Toward the goal of assisting the engineer/designer in selecting, applying and specifying the best product(s) for a given project, Current Systems has produced the Transformer Quick Reference Application Guide and the Design Assist Materials (DAM) Binder.

Click on the title(s) or the document(s) below for information.

Transformer App Guide

DAM Binder