The DS9 turns hardwired heat cable systems on and off using both temperature and moisture, saving you a lot on your electric bill. This controller works with any Heat Tape PRO spooled cables from 6 watt to 8 watt, from 120 volts up to 277 volts. The DS9 will control TWO 30 amp circuits at 277 volts.
$381.55
7 in stock
The DS9 unit operates by detecting environmental conditions through a base mounted temperature sensor and a remote heated precipitation sensor. When rain or snow land on the precipitation sensor, your cable system will turn on. The small heater in the sensor then rapidly evaporates the moisture, clearing the sensor in preparation for the next cycle. Smart stuff. The precipitation sensor is connected to a 10 foot cable and is intended for remote mounting near the roof deicing system. Use an EX-50 extension kit (with coupler) to put the precipitation sensor up to 60 feet away from the DS9 unit.
Signals from the sensor are supplied to the microcontroller which determines the appropriate action based on the system settings.
The difference between “sensor” and “controller” modes is the “Delay Off” drying cycle provided by each configuration. “Delay Off” time is the amount of time the sensor/controller will hold the load control relay(s) closed after the last detection of rain or snow. Proper setting of “Delay Off” assures that heat cables have created a sufficient melted pathway through the snow/ice on the roof.
The DS9 heat cable controller detects snow and rain in addition to directly controlling the cables themselves by pushing power into the cable only when called for. The DS9 is constructed of a durable NEMA 3R enclosure, rated for outdoor use and has a 3/4 Inch conduit hub and operates from -40F to +185F. The power pigtails are #14 Blue/Brown/Green and the load pigtails are #10 AWG Yellow.
“Heat Tape Pro did exactly what I needed it to do. Now I don’t have to worry about water leaking into my house, because I can tell when it’s working by the little light on the end of the cable.”
-Michael P.
Amazon Customer
“This heat tape works as advertised. It was delivered to me fast, and although it’s a little complicated to install, the documentation is good..”
-Shaun D.
Radiant Solutions Customer
“I install thousands of feet of heat tape every year. This is the best stuff I’ve found to protect my customers homes and give them the piece of mind they need.”
-Patrick B.
Professional Installer
Radiant Solutions products, including Ice Dam Prevention products such as Heat Tape Pro and Pipe freeze Prevention products like Pipe Freeze Pro can be purchase here at this website or at Amazon.com.
We work with licensed roofers, electricians and other contractors as Installers of Radiant Solutions Products. We know of installers all over the country.
If you are interested in finding a Heat Tape PRO™ installer in your area, click here to submit your info. If we have an installer we know of in your area, we will send you a recommendation.
Heat Tape Pro has the most comprehensive installation system that works on almost any kind of roof type.
For information about installing Heat Tape Pro on a Natural Slate Roof, Click here.
For information about installing Heat Tape Pro on a Synthetic late Roof, Click here.
The Free Shipping option uses available “standard” delivery methods for whichever carrier services your location. For many that means UPS ground, but for locations that UPS doesn’t go to –or is too expensive, we substitute a different carrier.
We are based in the Twin Cities (Minneapolis/St. Paul) metro area, so depending on where you are located, your shipping time will vary.
Here’s A link to shipping distances with Approximations of Lead times
If you can’t wait for your product to arrive via UPS ground, Radiant Solutions also offers a paid, 2-day shipping option. One thing to keep in mind: our cables are fairly heavy, which mean they are expensive for us to ship. This means that they are even more expensive to ship expeditiously. A little bit of planning ahead can save you some good money.
Radiant solutions has developed several accessories and installation components that work well for flat and low-pitch roofs. Installing heat tape on a flat roof often requires more unique considerations than standard serpentine patterns used on pitched roofs.
Check out our Case Studies for examples of Heat Tape installations, including information on flat roofs.
Also refer to the Heat Tape Pro Product Manual for information on flat roof installations of heat tape.
Radiant Solutions has the most comprehensive installation system for Heat Tape that exists. We make accessories to install heat tape on almost any kind of roof.
Click here to learn about product specifically for Natural Cedar Roofs
Including a thermostatic heat tape switch or controller in your installation will cut power to your heat tape in times it is not needed. This will lessen your environmental footprint and save you money.
Savings will always depend on the weather and how often you have temperatures above the threshold that the switch turns on your heat cable. In most situations where heat cable is needed, savings will offset the cost of the ThermaCord and then some.
If you are in need of a specific product that is currently out of stock, you can request to be notified when new inventory of product is in stock.
Click Here to complete the Re-stock Notification Form
We generally do not reserve stock for miscellaneous reasons outside our stated inventory on this website. Besides selling on this website, we also Sell our products on Amazon.com – in doing so, we send separate inventories to their warehouse for fulfillment, so you could check inventory of the product you are looking for there.
Check out our full list of Frequently Asked Questions on our FAQ Page.
Take a Look at Our Heat Tape Installation Case Studies
Learn a Bit about Ice Dams and How & Why they Form
Find heat tape products & accessories for ice dam prevention and pipe freeze protection.
We may be able to help connect you with a Radiant Solutions Heat Tape installer in your area.
And Product Dimensions
Understand the problems that our products solve and the advantage Radiant Solutions has over our competitors.
Demand is high across the U.S. & installers are needed!
128-Bit encrypted connection
We’re here to help. We are a 35 year old, family-owned, American company who loves to hear from our customers.
