Inrush Current Solutions

Inrush Current Limiters are used to reduce the inrush current that occurs when an electrical device is switched on. High inrush current is the result of the maximum instantaneous input current drawn by an electrical device during the initial power up. As technology continues to advance, most systems today run efficiently and maintain a low impedance which in turn contributes to high inrush current.

Additionally, devices that produce alternating current such as electric motors or transformers can draw several times their steady state current at switch on. Although this additional draw of inrush often lasts less than ½ of a normal 60 hertz cycle, that is enough time to cause possible damage to the equipment.

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Inrush Current Limiters

as-series

The AS Series of Inrush Current Limiters are used in high energy applications and short term high current.

surge-gard

Surge-Gard Inrush Current Limiters Formerly of RTI Electronics.

Standard Inrush Current Limiters

Standard Inrush Current Limiters come in a wide array of sizes, values, and ratings.

bigampscaled

The Big AMP series of Inrush Current Limiters are used in high energy applications and short term high current.

MS35 Inrush Current Limiter

The MS35 is our most rugged Inrush Current Limiter for up to 680 volts.

PTC Inrush Current Limiters

PTC Thermistor for Inrush Current Protection.  Rated for up to 680 Volts.

ul-and-csa-approved-updated

These Inrush Current Limiters are UL and CSA approved.

Mini Amp Miniature Inrush Current Limiters where cool operation is desired

The Mini-AMP Inrush Current Limiter is great for compact power applications.

Mega Surge Inrush Current Limiters

The Mega Surge Inrush Current Limiters are best used when you have higher than average voltage and current requirements.

Inrush Current Limiter Data Sheets

 

 

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What is an Inrush Current Limiter? The Single Part Solution

There is a lot of information available about inrush current limiters and their different applications, capabilities, limitations, and other particular details. But very infrequently is the most basic question asked, what is an inrush current limiter and why is it used? To access, appreciate, and apply the benefits and solutions that these components provide, it is important to first be able to understand, acknowledge, and answer the question of what … Continue Reading

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DC/DC Converter Inrush Current

Regulating Inrush Current at Powerup At powerup, DC/DC converters draw a large amount of electrical current.  This inrush current can be fatal to both the converter and the load if not controlled at the beginning. To achieve a soft start, when the electrical current rises gradually to its specified level, the use of an NTC Thermistor Inrush Current Limiter can be vital.   DC/DC Converters DC/DC converters transform a source … Continue Reading

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Inrush Current Limiter Family

Cool-down Time for Inrush Current Limiters

NTC Thermistor Inrush Current Limiters are used to reduce the inrush current that occurs when an electrical device is switched on. High inrush current is the result of the maximum instantaneous input current drawn by electrical equipment during the initial power up. As technology continues to advance, most systems today run efficiently and maintain a low impedance, which in turn contributes to a high inrush current. Cool-Down Time After Power … Continue Reading

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Resource Center

Inrush current limiting solutions, tips and tricks.

Inrush Current Limiters

Inrush Current APP Notes

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