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Duct Fan Speed Adjuster - Active Air ACSC
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Duct Fan Speed Adjuster

120 Volt - Rated For 15 Amps - Universal Plug - One Outlet - Active Air ACSC


The Active Air ACSC fan speed adjuster was designed especially for centrifugal fans to help prevent damage to fan motors, ensuring longer life. It will correctly adjust the speed of fans without causing the motor to hum. This 120 volt speed adjuster has three settings, allowing you to simply increase or decrease the fan speed, and set a minimum fan idle speed between 0 to 100%. Rated for 15 amps, this speed adjuster features an electronic auto-resetting circuit breaker that has been added in the event of a power surge. The breaker remains tripped for a period of time set by an external timing capacitor and then is automatically reset. For use with permanent split capacitor type motors, all Hydrofarm inline fans, and Active Air booster fans.

Brochures & Spec Sheets


Stock Code:  GROW-ACSC
Part No.:  ACSC
Voltage:  120
Length:  6.2 in.
Height:  5.5 in.
Plug Type:  Universal
Use With:  Centrifugal Fans
Brand:  Active Air
UPC:  638104005234
Amperage:  15 Amps
Width:  8.2 in.
Number of Outlets:  1
Warranty:  1 Year
Case Quantity:  24

Return Policy

Grow Lighting & Hydroponics Return Policy

Grow Lights, Hydroponic supplies, special orders, and non-stock items are sold as "ALL SALES FINAL, no returns accepted". All fixtures are considered Special Order and are non-returnable. Please allow an account manager to assist you in this kind of purchase in order to guarantee that you are receiving the correct product.

Some grow lights and accessories have their respective factory warranties stated on our website. will assist its customers with these factory warranties in the following manner:

If a product is declared defective and is under warranty; the customer is asked to contact customer service or their account manager and ask for a return merchandise authorization. (RMA) With the RMA, our customer may return the declared defective product at the customer's expense, for factory testing. When the factory tells that the product is defective and not a product that has been improperly installed, we can credit our customer for the product and we will also credit the original shipping costs of that original purchase. If a replacement is needed, it must be ordered and paid for as if it were a new order. (A credit for the defective may take from 2-4 weeks to be declared acceptable under warranty.) Any and all remedies concerning Hydroponics Supply purchases will follow guidelines as set forth here. Other products are not returnable under circumstances outside those described above.

All of the products sold by are first quality products. All are factory tested and ready for customer application.

WARNING: Non- Plug in Ballast wiring and installation procedures are very complicated and should be attempted by a licensed electrician only. Ballast installation poses serious risks of electric shock which can lead to injury or death.

Shipping or Website Errors

Should the customer receive product not expressly ordered either by our shipping error or incorrect website information, the product will be picked up by our shipper and replacements shipped at no additional charge.

Customer Reviews

Rated 3 out of 5 by 1 reviewer.
Rated 3 out of 5 by the jury is out When I plugged this into the wall, the front of it snapped loose from the back! I didn't really want to pulled it out (or it would probably come completely apart), and it was completely seated in the outlet, so I figured I would try it. I love the operation of it; the fan on the home-built woodstove in the home I bought is just too large and loud, and this product effectively reduced the output volume of air and noise that the fan puts out. I really like the usefulness. I will probably flip off the breaker controlling this outlet before attempting to pry it from the outlet. I would recommend this to a friend, just with caution. January 18, 2015
  • 2015-03-27T05:34:18.109-05:00
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