TEMCo Isolation Transformer T29040

In stock
Shipping: $361.69 via Ground
3 kVA, 240x480 Primary Volts x 380 Secondary Volts, 50/60 Hz, Single Phase, Copper
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More Information
TEMCo ID T29040
Transformer Type Isolation
Input Voltage 240x480
Output Voltage 380
Phase Single
Frequency (Hz) 50/60
kVA 3
K Rating 1
Primary Configuration Two Winding
Secondary Configuration One Winding
Winding Material Copper
BIL Rating (kV) 10
Temperature Rise (°C) 150
Insulation System (°C) 220
Enclosure Rating NEMA 3R
Enclosure Material Steel
Construction Style Enclosed (Ventilated Core & Coil)
Mounting Type Floor or Wall
Connection Type Lugs/Bolt down Terminals
Cooling Air/Dry
Agency Approvals File No. E108255 ISO9001 Quality Certification
Length (in) 6.5
Width (in) 7.63
Height (in) 13
Weight (lb) 60
Warranty 10 Years
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(Size: 218.2 KB)
Data Sheet
(Size: 423.1 KB)
Dimensional Diagram
(Size: 347.8 KB)
Wiring Diagram
(Size: 163.6 KB)
Product Description View more Close tab

TEMCo Single Phase Isolation Transformers are 50/60 Hz rated and come in a NEMA 3R enclosure for indoor use as well as outdoor protection against rain and sleet. Our transformers are built to last, guaranteed. That's why we back these with a decade long warranty. For the same transformer with a different winding material, see the "Related Products" section below. For copper or aluminum windings in other sizes, please refer to the TEMCo Single Phase Isolation Transformer Selection Guide for the part number (link to the right).

For rush build options and custom kVA sizes, please call us for a quote.


  • 50/60 Hz
  • NEMA 3R
  • 150°C rise
  • UL Listed and CSA Certified
  • 10 Year Warranty

TEMCo 1 Phase Isolation Transformers Selection Guide
Product Videos View more Close tab
What Is a Transformer And How Does It Work?

What is a Transformer and How Does It Work?

Transformers change voltage through electromagnetic induction between the primary and secondary winding coils. This video illustrates the basics of how transformers work.

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