A step down transformer is a vital component for commercial and industrial facilities, designed to reduce higher mains voltage to a lower, usable voltage. This collection focuses on transformers that convert high input voltages, such as 347V or 480V, down to standard voltages like 120V or 277V. This allows you to safely power standard lighting fixtures, controls, and equipment from a high-voltage electrical system without needing to run separate, dedicated circuits.
Common Applications for High Voltage Transformers
These transformers are essential in buildings where high-voltage power is distributed to save on wiring costs, but lower voltages are needed for specific loads.
- Powering 277V Lighting: In industrial facilities or large commercial buildings with 480V 3-phase power, a 480V to 277V transformer is used to power standard 277V fluorescent or LED high bay fixtures.
- Creating 120V Circuits: Step down a 480V, 347V, or 277V line to create a standard 120V circuit for wall outlets, task lighting, fans, or other general-purpose equipment.
- Operating Controls and Accessories: Provide the correct operating voltage for lighting controls, sensors, or other system components that are not rated for high-voltage input.
How to Choose the Right Step Down Transformer
Selecting the correct transformer is critical for safety and performance. Match these specifications to your project's requirements.
- Confirm Input and Output Voltage: The most important step. Ensure the transformer's primary (input) voltage matches your building's supply (e.g., 480V) and the secondary (output) voltage matches the device you need to power (e.g., 277V).
- Calculate the Required VA Rating: Determine the total load in Volt-Amps (VA) or Watts of all devices that will be connected. To prevent overload and ensure longevity, choose a transformer with a VA rating that is at least 20% higher than your total load.
- Verify the Enclosure and Mounting: Check that the transformer's design and NEMA rating are suitable for the installation environment, whether it's a dry indoor location or an area requiring a more robust enclosure.
Find the Right High Voltage Transformer Today
At Bees Lighting, we specialize in providing the commercial-grade electrical components you need to get the job done right. Our selection of step down transformers is sourced for reliability and durability, ensuring you can safely and efficiently manage the power in your facility. Browse our collection to find the voltage and VA rating you require.
