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Products
Home > Products > Transformers > General Purpose Transformers

General Purpose Transformers

Dry-type transformers (encapsulated, ventilated or non-ventilated), 600 Volt Class, isolation type, single and three phase, through 500 KVA. Indoor and outdoor models available.

Any situation where the available voltage must be changed to accomodate the voltage required by the specific electrical circuit or connected equipment. FOr many electrical circuits, the National Electric Code (NEC) requires a separately derived neutral secondary connection provided by Delta-Wye connected transformers. Typical applications include:

   Hospitals                          Office Buildings
   Industrial Plants                 Schools
   Commercial Buildings           Shopping Centers
   Apartment Buildings            High Rise Buildings
   Institutional Buildings

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General purpose transformers can be located close to the load. No vaults are required for installation and no long, expensive feeder lines are needed. Common applications include inductive and resistive loads such as motors, lighting and heating.

Sola/Hevi-Duty general purpose transformers are manufactured to meet applicable industry standards, are listed in accordance with UL506 and UL1561 specifications and are classified as isolation transformers.

On this page: Accessories, Design Styles, Construction Features

Single Phase: Features, Selection Tables, Electrical Connections

Printable versions of the following sections are available by selecting one of the pdf files to the left.

Single and Three Phase Features Top

.05-.250 KVA  (Single Phase Only)

  • UL-3R enclosure for indoor or outdoor service
  • Low temperature rise, UL class 130°C insulation system, 80°C temperature rise under full load
  • Conduit knockouts for side entry into roomy wiring compartment
  • Copper lead wire terminations

.500-10 KVA

  • UL-3R enclosures for indoor and outdoor service
  • Electrostatically shielded for quality power on sizes 1 KVA and larger
  • UL class 180°C insulation system, 115°C temperature rise under full load
  • Conduit knockouts for side entry into wiring compartment
  • Copper lead wire terminations
  • .500-10 KVA units are encapsulated with electrical grade silica sand and epoxy for industrial applications

15-167 KVA

  • UL class 220°C insulation system, 150°C temperature rise under full load
  • Electrostatically shielded for quality power
  • Terminal board connections and spacious wiring compartment
  • UL-3R outdoor enclosures when used with optional weather shields (order separately)
  • Panel enclosure design reduces labor time. Remove only two bolts for entry. Wiring diagram on inside front cover.

Construction Features of Ventilated Units Top
  • Electrostatic Shielding
  • UL-3R Enclosures
  • Fast Delivery
  • Easy Installation
  • 10+2 Years Warranty

Accessories Top
  • Wall mounting brackets
  • Stainless Steel Enclosures
  • Totally enclosed non-ventilated designs
  • Open Core and coil designs
  • NEMA 12 or 4X Encapsulated Enclosures
  • Weather Shields
Design Styles Top

 

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Style 1
Style 2

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Style 3

Style 4

 

Wall Mounting Bracket Accessories (Set) Top

 

KVA

Catalog
Number
15 - 25  WB1C
30 - 75  WB1C
112.5 - 500  N/A

Note: Each WB1C is a set of four (4) brackets to mount one transformer and must be ordered separately. Furnished at no charge when ordered with transformer.

 


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