TEMCo Control Transformer TT1876

In stock
Shipping: $361.69 via Ground
3 kVA, 480 Primary Volts x 480Y/277 Secondary Volts, 50/60 Hz, Three Phase
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More Information
Transformer Type Control
Input Voltage 480
Output Voltage 480Y/277
Phase Three
Frequency (Hz) 50/60
kVA 3
K Rating 1
Primary Configuration Delta
Secondary Configuration Wye
Winding Material Copper
BIL Rating (kV) 4
Insulation System (°C) 155
Enclosure Rating NEMA 1
Enclosure Material Steel
Construction Style Enclosed (Ventilated Core & Coil)
Mounting Type Floor or Wall
Connection Type Lugs/Bolt down Terminals
Cooling Air/Dry
Sound Level (dB) Less than 40
Length (in) 10
Width (in) 16
Height (in) 11
Weight (lb) 69
Warranty 10 Years
Support Information View more Close tab
(Size: 459.9 KB)
(Size: 218.2 KB)
Data Sheet
(Size: 231 KB)
Dimensional Diagram
(Size: 341.6 KB)
Wiring Diagram
(Size: 353.3 KB)
Product Description View more Close tab


  • CSA Approved
  • UL Listed
  • Copper windings
  • 1.5 to 2 week build time
  • Built with heat-proof insulation for compact size and long life.
  • Soldily fixed terminals with standard combination slotted Robertson head screw connections facilitate wiring.
  • Unique bobbin-wound coils for greater efficiency, superior heat evacuation, and compact structure.
  • .

TEMCo's 3 Phase Control Transformers are copper wound and built with heat-proof insulation for compact size and long life. Wiring is made easy by the solidly fixed terminals with standard combination slotted Robertson head screw connections. Bobbin-wound coils provide better efficiency, great heat evacuation, and compact structure. These units are built to last, guaranteed, backed with a 10 Year Warranty. Looking for a different specification? Check out our link to our 3 phase control transformer selection guide on the right of this page. We carry thousands of models in all kinds of configurations.

Please call us for additional options:

  • NEMA 4/4X
  • Encapsulation
  • Other voltages/multiple taps
  • Electrostatic shield

Output Amps
480Y/277 V 3.61
TEMCo 3 Phase Control Transformer selection guides
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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