How to Avoid Inrush Problems When Installing an Emergency Inverter

April 16, 2021 Daren Hatfield

Contractor Emergency Lighting Insider Inrush Protection

Whenever inverters are used with LED loads, it is important to consider the effects of inrush on the emergency circuit. Inrush is an electrical condition that occurs as capacitors in devices draw excess initial power at start-up. This initial power draw is brief and, by itself, is typically not noticeable, but when several devices on a circuit are turned on simultaneously, the combined inrush of all devices can be significant. The cumulative inrush can exceed the specified ratings of any peripheral device on the circuit, such as a switch, sensor or control, and render it inoperable. Some of the more disruptive inrush profiles of LED drivers have been witnessed at 50 times their normal rated power, making it difficult to find peripheral devices that can accommodate these anomalies. Emergency inverters are also susceptible to the impact of inrush, so it is important to understand the different methods of accommodating inrush on your emergency circuits.

Read our latest Contractor Emergency Lighting Insider to learn the details on inrush and how to make the wisest inverter investment for you emergency application.

For more information on IOTA Emergency Lighting Solutions, visit or contact us at 1-800-866-4682!

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