Use these resources to explore our full catalog of products and select a transformer that meets your goals.

Need additional help? Contact our application engineering department by calling 800-892-3755 or 414-209-1620, or send us an email.

Learn more about technical associations, buying groups, and regulating agencies by clicking here.

Helpful resources and documents

PRODUCT SHEETS
DOE Sales Sheet
C802 Sales Sheet
HMT (Zig Zag) Sales Sheet (US)
18 Pulse Sales Sheet
Encapsulated Transformers Overview
Drive Isolation Transformers Sales Sheet
Totally Enclosed Transformers Sales Sheet
Elevator Transformers Sales Sheet
Pre-Wired Transformers Sales Sheet
Ventilated Transformers Sales Sheet
Buck-Boost Transformers Sales Sheet
Industrial Control Transformers Sales Sheet
Medium Voltage Industrial Control Sell Sheet
Medium Voltage Sales Sheet
Seismic Qualified Transformers 2017 Sales Sheet
Seismic Qualified 2017 White Paper
Outdoor Lighting Transformers Sales Sheet
JEI Xtra High Performance Transformers Brochure

BROCHURES
Jefferson Full Line Brochure
Jefferson Transformateurs Standards (Fr)
Stocked Items Brochure
JEI Customization (OEM) Brochure
HOJAS DE PRODUCTO ESPANOLAS
Folleto Corporativo
DOE Hoja de Ventas
Transformadores Industriales de Control
Transformadores Buck Boost
Transformadores Encapsulados Tipo

GENERAL INFORMATION SHEETS
Rodent Screens
Lug Kits on Transformers
Anti Vibration Pad Info Sheet
TERMS & CONDITIONS, WARRANTY
JEI Terms & Conditions
JEI Warranty

Installation Information
Ventilated & Encapsulated Transformer Maintenance Manual
Manual de Instalación, Operación y Mantenimiento de Transformadores
Outdoor Power Unit Installation Manual
Installation for wall mount brackets
Installation for wall mount brackets with drip pans
Weather Shield Installation sheet
Lug Instruction Sheet
Seismic Unit Installation
Rodent Shield Instructions
Touch Up Painting Instructions
Medium Voltage Installation Manual
Whitepapers
Seismic Qualified Whitepaper
2019 DOE Energy Efficiency Whitepaper
JEI 2019 Canada Efficiency Statement
Buck boost information
Buck-Boost Installation Guide
Manual de Instalacion de Buck-Boost
Transformadores Buck-Boost
Buck-Boost Application Manual
Buck-Boost Selector (MS Excel spreadsheet)
Tanning Bed Installation Manual
Pre-Wired Auto-Transformer White Paper

Weather Shields - Ordering and Installation Info
Mounting Bracket Sheet
Mounting Bracket with Drip Pan Sheet
1Ph Enclosure Replacement Parts sheet
Anti-Vibration Pads - Information and Part Numbers
3Ph Enclosure Replacement Parts sheet
Anti-Vibration Pads - Information and Part Numbers
Touch Up Paint Instructions
DOE-2016 (NEMA 3R) NON-LINEAR DESIGNS
DOE - 3 Ph Ventilated, 150C rise, Al & Cu, K411-2019
DOE - 3 Ph Ventilated, 115C rise, Al & Cu, K411-2019
DOE - 3 Ph Ventilated, 80C rise, Al & Cu, K4/a>11-2019
DOE - 3 Ph Ventilated, 150C rise, Al & Cu, K1311-2019
DOE - 3 Ph Ventilated, 115C rise, Al & Cu, K1311-2019
DOE - 3 Ph Ventilated, 80C rise, Al & Cu, K1311-2019
DOE - 3 Ph Ventilated, 150C rise, Al & Cu, K2011-2019
DOE - 3 Ph Ventilated, 115C rise, Al & Cu, K2011-2019
DOE - 3 Ph Ventilated, 80C rise, Al & Cu, K2011-2019
DOE-2016 (NEMA 3R) ENCLOSURE & MOUNTING DIMS
DOE - 1 Ph Ventilated, 150C rise, Al & Cu, K1 UPDATED03-2020
DOE - 1 Ph Ventilated, 115C rise, Al & Cu, K1 UPDATED03-2020
DOE - 1 Ph Ventilated, 80C rise, Al & Cu, K1 UPDATED03-2020
DOE - 3 Ph Ventilated, 150C rise, Al & Cu, K110-2019
DOE - 3 Ph Ventilated, 115C rise, Al & Cu, K110-2019
DOE - 3 Ph Ventilated, 80C rise, Al & Cu, K110-2019

ENCAPSULATED ENCLOSURE & MOUNTING DIMS
Single Phase Encapsulated, 0.50 - 1.0 kVA, 95° rise07-2019
Single Phase Encapsulated, 1.50 - 5 kVA, 135° rise07-2019
Single Phase Encapsulated, 7.5 - 25 kVA, 135° rise07-2019
Three Phase Encapsulated, 3 - 15 kVA, 135° rise07-2019
Three Phase Encapsulated, 30 - 75 kVA, 135 degree rise
Landscape Lighting 300 - 1800 Watt
TP1 (NEMA 1) ENCLOSURE AND MOUNTING DIM
Single-Phase Ventilated, 15 to 167 kVA, 150 degree rise
Single-Phase Ventilated, 15 to 167 kVA, 115 degree rise
Single-Phase Ventilated, 15 to 167 kVA, 80 degree rise
Three-Phase Ventilated, 15 to 150 kVA, 150 degree rise
Three-Phase Ventilated, 225 to 1000 kVA, 150 degree rise
Three-Phase Ventilated, 15 to 750 kVA, 115 degree rise
Three-Phase Ventilated, 15 to 150 kVA, 80 degree rise
Three-Phase Ventilated, 225 to 500 kVA, 80 degree rise

Terms & Conditions, Warranty
JEI Terms & Conditions (website page)
JEI Terms & Conditions (PDF)
JEI Warranty
Compliances
JEI REACH compliance
JEI Conflict Minerals Policy
JEI Statement of PCB use in products
CERTIFICATIONS & TESTING
ABS Approved
ABS Certificate Info
Seismic Qualified
CE Marked Certified
JEI Testing

UPDATED JULY 2023
RoHS 3 CERTIFICATES OF CONFORMITY
RoHS 3: Core/Coil Transformers
RoHS 3: Single and Three-Phase Encapsulated
RoHS 3: Industrial Control Transformers
RoHS 3: Single and Three-Phase Ventilated

Copyright notice

These electronic files are to be used for promotional purposes only, to support the sale of Jefferson Electric products. No portion of these may be used, in either electronic or in print form, for commercial purposes without the written permission of Jefferson Electric, 200 Newton Bridge Road, Athens, Georgia 30607. Files may be transmitted only in their entirety without any alterations to content, appearance, or functionality.

Due to ongoing product development and technical enhancements, Jefferson Electric reserves the right to change technical specifications.

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