Transformers (29)

United Rentals’ large power transformer rentals are outdoor rated and mounted to a skid frame. These temporary power supply transformers are all designed for safe and easy installation through industry-standard connectors. Our fleet of transformers is ideal for powering jobsite trailers and loads from the same power source and can be used in a variety of industries like construction, entertainment, sports, and more.

FAQs

What does a transformer do in HVAC?

  • Transformers do not generate power, they transfer power. They can help moderate incoming voltage to reduce or eliminate spikes in power that damage HVAC circuitry. 

What are the different types of transformers?

  • Different types of transformers are used in various types of applications. The main types are power transformer, distribution transformer, autotransformer, isolation transformer, instrument transformer, current transformer and potential transformer.

How do I test a transformer HVAC?

  • The best way to test a transformer is with a multimeter — a device that measures electrical current, voltage and resistance. However, you should only test a transformer if you are comfortable and confident working with electrical equipment. Always remember to remove electrical power from the electrical equipment or appliance and test in a dry area away from children and pets. 

 

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Cat Class: 241-3450

Isolation Transformer, 208V/208V

This item is not available for online ordering.

Request more information about this Power & HVAC product and one of our specialty representatives will contact you shortly.

  • Isolate sensitive equipment from other loads
  • 150 kVA 3 phase
  • 208V to 208V
  • Popular choice for entertainment professionals to isolate sound systems from other loads
  • Uses: Ideal to isolate sensitive sound or computer equipment from other loads that can create power quality issues
Cat Class: 241-3550

Transformer 25 KVA

This item is not available for online ordering.

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  • 25 kVA
  • Step down 480V to 120/240V 1-phase
  • Power your job site trailer and other 480V loads from the same power source
  • Lifting provisions and forklift pockets for portability
  • Power distribution equipment available to complete your temporary power system
  • Uses: Ideal to power worksite trailers and 480V loads from the same power source
Cat Class: 241-3661

Transformer 300kva 1200amp Panel

This item is not available for online ordering.

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  • 300 kVA
  • Step down 480V to 120/208V 3-phase
  • Built in distribution panel with interchangable breakers makes this a perfect choice for a variety of industries, including sports and entertainment events
  • Lifting provisions and forklift pockets for portability
  • Power distribution equipment available to complete your temporary power system
  • Uses: Ideal to power worksite trailers and 480V loads from the same power source and is a good choice for use in a variety of industries like construction, sports or entertainment
Cat Class: 241-3815

Transformer, 15 kVA, 480V to 240/120V, 1 Phase

This item is not available for online ordering.

Request more information about this Power & HVAC product and one of our specialty representatives will contact you shortly.

  • 15 kVA
  • Step down 480V to 120/240V 1 phase
  • Power your jobsite trailer and other 480V loads from the same power source
  • Lifting provisions and forklift pockets for portability
  • Power distribution equipment available to complete your temporary power system
  • Uses: Ideal to power worksite trailers and 480V loads from the same power source and a good choice for use in a variety of industries like construction, sports or entertainment
Cat Class: 241-3642

Transformer, 150 kVA, 400 amp

This item is not available for online ordering.

Request more information about this Power & HVAC product and one of our specialty representatives will contact you shortly.

  • 150 kVA
  • Step down 480V to 120/208V 3 phase
  • Built-in distribution panel with interchangable breakers makes this a perfect choice for a variety of industries, including sports and entertainment events
  • Lifting provisions and forklift pockets for portability
  • Power distribution equipment available to complete your temporary power system
  • Uses: Ideal to power worksite trailers and 480V loads from the same power source and is a good choice for use in a variety of industries like construction, sports or entertainment
Cat Class: 241-3940

Transformer, 150 kVA, 480V to 240/120V

This item is not available for online ordering.

Request more information about this Power & HVAC product and one of our specialty representatives will contact you shortly.

  • 150 kVA
  • Step down 480V to 120/208V 3 phase
  • Common transformer for facilities needing to run temporary equipment at a different voltage than what is available
  • Lifting provisions and forklift pockets for portability
  • Power distribution equipment available to complete your temporary power system
  • Uses: Ideal for running temporary equipment at a different voltage than what is available
Cat Class: 241-3945

Transformer, 167 kVA, 480V to 240/120V, 1 Phase

This item is not available for online ordering.

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  • 167 kVA
  • Step down 480V to 120/240V 1-phase
  • Common transformer for facilities needing to run temporary equipment at a different voltage than what is available
  • Lifting provisions and forklift pockets for portability
  • Power distribution equipment available to complete your temporary power system
  • Uses: Ideal for running temporary equipment at a different voltage than what is available
Cat Class: 241-3950

Transformer, 167 kVA, 575V to 240/120V, 1 Phase

This item is not available for online ordering.

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  • 167 kVA
  • Step down 600V to 120/240V 1 phase
  • Common transformer for facilities needing to run temporary equipment at a different voltage than what is available
  • Lifting provisions and forklift pockets for portability
  • Power distribution equipment available to complete your temporary power system
  • Uses: Ideal for running temporary equipment at a different voltage than what is available
Cat Class: 241-3715

Transformer, 5,000/7,000 kVA, 5/15kV to 480V

This item is not available for online ordering.

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  • 5,000/7,000 kVA 3 phase
  • Taps at 4,160V, 12kV, 12.47kV, 13.2kV, 13.8kV and 14.4kV
  • Step-up or step-down options available
  • Low side includes both 480V and 600V options
  • Power distribution equipment available to complete your temporary power system
  • Uses: Ideal to step up or step down voltage and is a good choice for use in a variety of industries like construction, sports or entertainment
Cat Class: 241-3920

Transformer, 75 kVA, 480V to 240/120V, 3 Phase

This item is not available for online ordering.

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  • 75 kVA
  • Step down 480V to 120/208V 3 phase
  • Common transformer for facilities needing to run temporary equipment at a different voltage than what is available
  • Lifting provisions and forklift pockets for portability
  • Power distribution equipment available to complete your temporary power system
  • Uses: Ideal for running temporary equipment at a different voltage than what is available
Cat Class: 241-3925

Transformer, 75 kVA, 575V to 460/277V

This item is not available for online ordering.

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  • 75 kVA
  • Step-up or step-down options available
  • 480V low-voltage side and 600V high-voltage side
  • Lifting provisions and forklift pockets for portability
  • Power distribution equipment available to complete your temporary power system
  • Uses: Ideal to step up or step down voltage and is a good choice for use in a variety of industries like construction, sports, or entertainment
Cat Class: 241-3600

75 kVA Step-down 3-phase Transformer

  • Step down input 480V to output 208V
  • Input 90 amps to output 208 amps
  • Unit weight 640 lbs.
  • Forklift pockets or lifting eyes included
  • Add this transformer to your cart now
Cat Class: 241-3697

Transformer, 1,250 kVA, 5/15kV to 480V, 3 Phase

This item is not available for online ordering.

Request more information about this Power & HVAC product and one of our specialty representatives will contact you shortly.

  • 1250 kVA 3 phase
  • Taps at 4,160V, 12kV, 12.47kV, 13.2kV, 13.8kV and 14.4kV
  • Step-up or step-down options available
  • Low side includes both 480V and 600V options
  • Power distribution equipment available to complete your temporary power system
  • Uses: Ideal to step up or step down voltage and is a good choice for use in a variety of industries like construction, sports, or entertainment