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Protect Your X10 Investment
Intermatic Whole House Surge Protector IG1240RC
Intermatic Whole House Surge Protector IG1240RC
Intermatic Whole House Surge Suppressor
Item# 4870
Free shipping on orders over $175 - See Details


  • Transient surge capacity - 1200 joules
  • Maximum surge current - 48,000A
  • Response time - less than 5 nanoseconds

Essential Info

This affordable surge protector is suitable for homes with main breaker panel capacities up to 400 amps. Designed for 120/240 volt single or split-phase service. Install this unit next to your breaker panel closest to where the electrical service enters your home. You will need two dedicated 15-amp circuit breakers available at a home improvement center.


What's Included

  • Intermatic Whole House Surge Protector IG1240RC
  • More Info

    Protect your X10 investment with the Intermatic Whole House Surge Protector.



    Manufacturer Product No.:IG1240RC
    Transient Surge Capacity:1200 joules
    Maximum Surge Current:48,000 amps
    Response Time:Less than 5 nanoseconds
    Maximum Service Capacity:Up to 400-amp panels
    Modes of Protection:L1-L2, L1-N, L2-N,L1-G, L2-G, N-G
    UL 1449 Clamping Voltages:Line to Neutral: 500 volts
    Line to Ground: 500 volts
    Neutral to Ground: 500 volts
    Line to Line: 800 volts
    LED Indicators:Two for each phase to show that protection is enabled
    Housing:Metal NEMA-4 Rated
    Enclosure Size:4.54" (H) x 2.58" (W) x 2.22" (D)
    UL Listings:UL 1449, 2nd Edition
    Warranty:5 years

    Important notes:
    Only merchandise credit for defective items returned within 30 days of purchase. No other returns allowed on this item.
    Manufacturer contact information: Intermatic Inc, Tel: (815) 675-7000


    90 Ratings
    5 star: 71%  (64)
    4 star: 20%  (18)
    3 star: 8%  (7)
    2 star: 0%  (0)
    1 star: 1%  (1)
    Average Customer Rating
    (90 customer ratings)
    Share your thoughts with other customers
    ERIC -- silver spring, MD   1/18/2010
    Item was shipped promptly. I have absolutely no hesitation to do business with Smarthome again.
    REV. JOHN CARL -- wurtsboro, NY   1/14/2010
    Easy to install for me (amateur with considerable experience with electrical wiring). Arrived timely. Good price. Can't tell how well it works-- until there's a power fault which I survive while others don't. Hopefully that will never happen to anyone. But having this unit installed gives peace of mind.
    STEPHEN C -- columbia, TN   1/6/2010
    Item came very quickly. It is not hard to install at all as long as you have some basic knowledge of the inside of your breaker panel. If the inside of your breaker panel looks like mission control to an electrician, it's a 10 min job at the most.
    CHARLES S -- san juan pueblo, NM   1/5/2010
    Good Product Still. Installed and working.
    BLAINE -- los angeles, CA   1/4/2010
    If you have no need to flush mount this device in a finished wall, it should work fine. If you do have this need, you'll need a flush mounting plate from Intermatic that SmartHome doesn't sell, which was my situation. Ended up with the Leviton unit instead.
    MICHAEL -- omaha, NE   12/20/2009
    The item was as advertised and installed easily.
    DENNIS -- big bear city, CA   12/19/2009
    Have not installed yet.
    ROBIN -- charlotte, NC   12/17/2009
    Pros: heavy duty surge protector is a definite cut above regular power bar grade material. easy to follow installation instructions. LED give unambiguous clue of the protection status. Cons: none
    RICHARD -- burbank, IL   12/13/2009
    great service from smarthome. best price for product. No issues with product yet but only time will tell for what is supposed to do.
    HOWARD (WILL) -- santa cruz, CA   12/7/2009
    I got it installed and it past the first power failure/spike just fine. Thanks for the prompt delivery. 5 stars!
    E. -- lighthouse point, FL   12/6/2009
    The price is right and the protection for a small home perfect. Very easy installation. Can do it yourself if you know where your nuetraul block is in your panel and turn off the service main to your home.
    DAN -- napa, CA   12/3/2009
    on time good price
    ROBERT -- chino valley, AZ   12/3/2009
    Very easy to install. I did add 2 additional breakers to handle the unit, but I don't think it was needed.
    PATRICK -- la grande, OR   12/3/2009
    This was a very easy upgrade to the electric service,and the most cost effective way of protecting computerized appliances.
    ALDO ANDRES CAL -- doral, FL   11/13/2009
    The surge suppresor is easy to install and seems to work Ok. I just think about the cables gauge because they are thin an that can limit the avercurrent protection.
    RAYMOND L -- cumberland, MD   11/12/2009
    Easy to install and working as advertised..
    KATHLEEN -- seldovia, AK   11/5/2009
    Product arrived quickly and was easy to install and appears to work great. Would purchase from here again without hesitation.
    LINDA -- richmond, TX   10/19/2009
    CHARLES -- hudson, FL   10/15/2009
    Six more inches of leads and it would be perfect. Beats the Electric Co. offer for six dollars a month.
    RUSSELL -- comanche, TX   10/13/2009
    Easy to install as described. Have not had an incident to relate the ability of the product to work.

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