Suncourt SW100 Current Switch

This switch is ideal for automatic on off control of accessories linked to the use of another device such as an appliance, etc.

Works good for my dryer fan

Note: I got this for half price from Amazon Warehouse Deals.I am not an electrician and found this very easy to install. In fact I know nothing about wiring which is why I bought this.Just had to know Black = Live/Hot, Green = Ground, White is neutral. Put the White wire through the center. Put Black wire in = L1 , Black Out T1.I hooked this up to a surge protector because they are cheap just in case I fried it, but I didn't fry it +and now I have a surge protector to run my on power appliances.The quote I got was $150 to hook up relay switch and the wiring.How long did it take? 15 minutes and I saved $130.

Used to control my dryer booster fan. Booster turns on as soon as my dryer starts its cycle and automatically stops when the dryer is finished. Easy to install, been running strong for about a year.

Unfortunately I did not put the switch to use within the Amazon 30 day return period for this item. Right out of the box the item was defective. Before even putting a monitoring load thru the core, the switch is in the closed position. Obviously with only a 30 day warranty from order, they hope to take your money and run before you know that you bought trash. This is the first time in many years I have been burned ordering from Amazon. I do not blame Amazon, they warned me about the 30 day return policy, I only wish they would screen out these losers from their site a little better.Update 8/16/2014 I may have been wrong. I really did not want to believe this product was a total loss or piece of junk. After experimenting with the sensor/switch I found out that switch (on the load line) was in the closed or on position without any current in the sensor line IF THE LOAD IS VERY SMALL. In my case, the sensor was monitoring a pump and my load was only an old fashion, 110V 3W analog clock. I am measuring cumulative running time, to the second, for a pump that only runs about once a week for 20 minutes. With only the clock connected to the switch (load), the clock would run without any current thru the sensor. However, if I also added a 40W incandescent light bulb to the load, same line as the clock, BINGO, the switch opens and neither the clock or light bulb are on until the pump is on and there is current thru the sensor as expected. Now when the pump is on, the clock runs and the light bulb is on. A minor annoyance for me but a satisfactory work around. I am not an electronics expert so am not sure if my observation is typical of solid state electronics or a manufacturing problem with the switch. In any event they advertise the switch up to a maximum number of amps but make no mention of a minimum necessary to function properly. Anyway, I will up my rating to 3 stars and am now happy with the purchase. Jim

works well - a little tough to put a cover over this in a two gang box. had to cut the ears off.

bought it in may of 2019.I own a Massage and Skin Care spa, We are very busy my dryer runs 10 hours a day and I use this switch to operate A booster fan for the dryer. works 10 hours a day no problems.

Took awhile to install. Had to hire a professional electrician to do installation due to need to work in main box and 220 line. Works extremely well now. The directions could have been clearer.

Great and easy to use product

Ran the dryer's neutral line through it and it turn on the booster fan as it should. No problems.

No dislikes arrived promptly

Actuates 120 Volt Loads upon sensing current flow from another device.

I bought this unit to control a Tjernlund Products DBF2 Dryer Duct Booster Fan which I also purchased from Amazon. The set up worked correctly for about a year and then just stopped working.The fan power consumption is well within the switch rating, so there’s no reason for it to have failed so prematurely.