Search  for anything...

Automatic Vacuum Switch for Power Tools, Etoolcity Unique Current Sensing Technology to Delay Vacuum On to Prevent Circuit Overload, Eliminating Circuit Breaker Tripping

  • Based on 3,260 reviews
Condition: New
Checking for product changes

Buy Now, Pay Later


As low as $8 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Nov 28
Order within 7 hours and 13 minutes
Available payment plans shown during checkout

Features

  • Unique Current Sensing Technology. If the tool motor connected to the 'A' port exceeds 30W, the vacuum connected to the 'B' port will automatically delay 1s to turn on, which helps prevent circuit overloaded by large current if tool and vacuum power-on at the same time
  • Make the Work More Effective. Automatic delays 1s to turn on the vacuum when you start your tool, and delays 7s to turn off the vacuum to clean the inlet tube when you complete your work. Saving time and electricity, reducing airborne toxin and work area noise that can lead many health problems
  • Suitable for Most Medium Duty Workloads. Etoolcity automatic vacuum switch has a starting threshold of approximately 0.25 amps(30watts at 120V and 60watts at 220V), perfectly suited for medium-sized work loads such as most Miter Saws, Table Saws, Power Sanders and Routers, and extend the life of your vacuum
  • More Safety. Adopting high-cost, UL-certified American Standard 14AWG power cord which allowable passage with a large current that more than 30A, the Etoolcity Automatic Vacuum Switch can work stably within 3600W. The switch's shell has PC+ABS V0 grade flame retardant material, it is more reliable and safe to protect work
  • Two Installation Methods. You can use screws to fix the power module part, or use strong nano-markless hook sticker to attach directly to the wall. Both ways are very strong

Manufacturer: ‎Etoolcity


Part Number: ‎Ec


Item Weight: ‎10.8 ounces


Package Dimensions: ‎6.81 x 3.46 x 2.24 inches


Item model number: ‎LF40-HVC01


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: October 14, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Nov 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great switch for small workshops
I no longer have to turn on the power tool and vacuum separately. I can keep them both connected to this switch and start cutting. They both engage and shot off in slightly delayed synchronicity. It drastically reduces the dust output by at least 75% or more. I use it on my table saw connected to a vortex separator and shopvac as well as similar setup with my miter saw. Two of the most dust producing tools I use most often. It's no replacement for a full air vac system, but does reduce the dust on individual tools effectively. I am prone to use my dust heavy tools more often because of the single push button ease, than I would if I had to hit two switches every time I want to make a cut. The boost in efficiency is well worth it. I used to say why bother, it's only a few quick cuts, which, in reality, output more dust than you would expect, creating a bigger mess to clean up. My shop isn't dust free, but there is far less build up than before, which is a vast improvement for such a modest expense. ... show more
Reviewed in the United States on October 7, 2022 by WMD

  • One of the best purchases for my shop
I built my own dust collection system with a unit from home depot mounted on a 5 gallon bucket then mounted on top of a rigid shop vac via PVC pipes and fittings with some scrap plywood and a few screws. This works very well mounted to my dust collection system with the vac in one plug and the table saw or miter saw in the other. I turn on the saw and within a few seconds the vac turns on automatically and then when I turn the saw off it leaves the vac running for about 10 seconds to get all the dust out of the hose then shuts off the vac. I would recommend this product for this use. It is great. ... show more
Reviewed in the United States on October 19, 2022 by Robert B.

  • Should have bought this years ago.
I dont know why I didnt buy one of these years ago. Being able to fire up the table saw and have the vacuum come on automatically is awesome,. I didn't realize how much time I spend going back and forth between the vacuum and the saw until I started using this. About the only knock I have is that it is made out of plastic, which makes me wonder how long it will ask. With that stated, I have not had a problem with it yet. ... show more
Reviewed in the United States on October 30, 2022 by Deeve

  • Can't do a real operation review because SainSmart Genmitsu 4030 router has not worked for 3weeks.
This unit operated correctly with a quick test but can't review it for the intended operation because SainSmart has been so slow taking care of fixing the operation of my Genmitsu 4030 cnc router. It's been out of operation for 3 weeks under warranty, with very little hope that it will be operational any time soon. ... show more
Reviewed in the United States on September 29, 2022 by JR

  • Nearly perfect
Does a great job on the table saw, router table and lathe. Less helpful on the compound miter saw. The one second delay frequently sees the vacuum kick on just as the saw is stopped. I understand the reason for the delay (I've done the same thing on industrial equipment countless times) but for a quick cut on a compound miter, the delay is counter productive. Best advice, trigger the saw, wait for the vacuum, then cut. ... show more
Reviewed in the United States on August 1, 2022 by Dave Cunningham

  • Why did I wait so long?
This is a game changer! I can focus more time on my work instead of starting up my dust collection. Saves time!
Reviewed in the United States on September 17, 2022 by B-Dub

  • Exactly what I needed.
No dislikes. Used just as intended. Functions perfectly.
Reviewed in the United States on August 19, 2022 by Jim Copeland

  • Autostart your shop vac when you engage a power tool, briliant!
Should have purchased one of these years ago.
Reviewed in the United States on September 12, 2022 by Eric S. Swanzey

Can't find a product?

Find it on Amazon first, then paste the link below.