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Location
Indoor
Features
Status Indicators
Wired
Voltage
220V AC
Ease of Installation
Intermediate (Installs < 60 minutes)
Brand
Leviton
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Protect All the Electronic Gear in Your Home
Leviton 51120-1 Whole House Surge Suppressor / Surge Protector
Leviton 51120-1 Whole House Surge Suppressor / Surge Protector
whole house surge protector wiring diagram
Leviton 51120-1 Whole House Surge Suppressor / Surge Protector
Item# 4860
Price: Normally $229.99 
Hot Deal $175.69
Qty:
Free shipping on orders $200 and up details
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Overview

  • Unlimited main breaker panel current
  • Transient surge capacity - 950 joules
  • Maximum surge current - 50,000A
  • Response time - Instantaneous

Essential Info

Provide your home with protection from high-energy transient voltage surges that can damage sensitive electronics such as computers, audio and video gear and other electronic appliances.

The Leviton Whole House Surge Suppressor can be surfaced-mounted or flush-mounted in-wall in a 6"x 6"x 4" cutout. 5 year limited warranty.

Also available in a 3-phase version.


Important notes:
  • Smarthome does not offer technical support on this product, please contact the manufacturer directly for all product support.
  • Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
  Manufacturer contact information:
  Leviton Dept: 00244
  Tel: (800) 824-3005

Manuals/Software

What's Included

  • Leviton Whole-House Surge Suppressor
  • More Info


    The Leviton 51120-1 Branch Panel Mounted transient voltage surge suppressor (TVSS) devices have been designed to protect residential as well as small commercial establishments from high voltage transients. Standardized J-Box metal enclosure with prepunched standard size knockouts simplifies flush mounting in typical frame construction environments, and provides convenient connection means to existing branch panels. Some of the features are:

  • Meets UL 1449.
  • IEEE C62.41-1991 category A&B combination wave
    suppression.
  • Solid-state semiconductor TVSS circuitry for each
    phase.
  • Each phase independently fused.
  • Green LED diagnostic indicator for each phase.
  • Standard J-Box metal enclosure.
  • Prepunched standard knockouts.
  • Interior plastic circuit enclosure for added safety.
  • Flush mounting enclosure.

    Protection for whole-house lighting control systems
    While this whole house surge suppressor is great for protecting computers, TVs and other electronics, it can also protect against damage to lighting control systems such as INSTEON, X10 or Z-Wave. Voltage spikes of several hundred or even thousands of volts generated by outside sources do occasionally occur. We know of customers that have had several X10 components fail simultaneously for no apparent reason except for one clue, home control components that happened to be plugged into a surge suppressor/surge protector power strip were still functional.

    If you are going to be using a significant number of remote control light switches in your home adding a whole house surge protector will give you a good insurance policy against costly damage to both your home control system and other delicate electrical equipment in your house.

    We recommend that whole-house surge protector units be installed by a licensed electrician.

    This latest version of the Leviton Whole-House Surge Suppressor has greatly increased surge handling capacity. This surge protector unit is an essential component when installing an extensive whole-house lighting control systems. LEDs on the panel show operation status.

    Installation Connections:
  • J1=L1

  • J2=L2

  • J4=Neutral

  • J5=Ground


  • Specifications

    Specifications

    Manufacturer:Leviton
    Manufacturer Product No.:51120-1
    UPC:07847782764
    Voltage Configuration:50kA
    Surge Counter:No
    Disconnect Switch:No
    Enclosure Rating:NEMA 1
    Protection Mode:4-Mode
    Diagnostics:LED
    MCOV:150V
    AC Noise Rejection:N/A
    Standards and Certifications:UL1449 / CSA / ANSI/IEEE Cat ABC
    Warranty:5 Year Limited



    Reviews

    116 Ratings
    5 star: 69%  (80)
    4 star: 20%  (23)
    3 star: 5%  (6)
    2 star: 3%  (3)
    1 star: 3%  (4)
    Average Customer Rating
    (116 customer ratings)
    Share your thoughts with other customers
    TROY -- houston, TX   4/28/2012
    Easy to install, quality construction at a great price point. Cheap insurance in the long run
    PETER -- port ludlow, WA   4/15/2012
    This is intended to be mounted in a stud space adjacent to the main circuit breaker panel in a residence. It also could be surface mounted. It is supposed to be connected to two single pole 20a circuit breakers which are on different phases (every other row of breakers are alternating phases in most residential panels). The instructions say that it can be connected to existing breakers, paralleling exising loads. I chose to add two new breakers specifically for the surge arrestor. The unit was as advertized and the price was the best I found. Shipping was fast also. Whether it protects against voltage surges, It's hard to prove a negative. Leviton is a venerable and respected brand so I hope it will do its job.
    NEAL -- conway, AR   4/13/2012
    Easy straight forward install.
    DIANE -- edenton, NC   3/18/2012
    I feel very confident with this protecting our home from surges from storms etc. We just put in a very expensive 23 seers HVAC system and that is why we purchased the Leviton 51120-1.
    HENRY -- harbor city, CA   3/12/2012
    Had this product installed by an electrician. Until a surge happens, I will not know how effective this product is. I was delighted how guickly it was shipped.
    JOHN -- bartlett, TN   2/18/2012
    Installation was about an hour by a qualified electrician. I can not honestly rate it yet because there have not been any serious power surges here since this was installed.
    LOUIS -- houston, TX   2/16/2012
    Easy to install.
    HAZEL -- plymouth, IN   11/28/2011
    So far, very pleased. We haven't had a surge since putting it in. Before that, sometimes we would have several surges a day.
    IRENE -- demarest, NJ   10/13/2011
    Appears to be perfect. I had it professionally installed and I know my installer had to purchase something to install it but that's all I know
    WILLIAM -- rockford, IL   9/16/2011
    Will consider ordering again.
    CHRIS -- huntington station, NY   9/10/2011
    may be responsible for some communication issues I'm having in my HA system, still had some problems after return of power post Hurricane Irene
    ROY -- novi, MI   8/11/2011
    The product, shipping and price were all very good, much better than some other on line experiences I have had.
    LEWIS -- cortez, FL   7/16/2011
    Very easy to install. I'm satisfied.
    GAVIN -- bailey, CO   7/15/2011
    I have purchased several of these units and installed them in not only other peoples home, but my own. this is a great unit and works very well! The service that comes from smarthome has been excellent and I will continue to shop at smarthome as well as suggest them to other people!
    BYRON -- oxford station, ON   6/4/2011
    Product was a little counter-intuitive to install, but was extremely easy to do. Seems to be working well as there have not been any power-surges noticed since it was installed. A package deal containing appropriate breakers, conduit and wire would make this an even better no-brainer purchase for any home.
    JAMES -- dilliner, PA   5/7/2011
    This was the second unit purchased as a replacement for the first one. I had problem installing the replacement. The first one did its job when the power companys' line took a lighting strike.
    MARK -- honolulu, HI   3/25/2011
    Reading the instruction made the installation quick to do.
    JAVID -- lake ridge, VA   2/24/2011
    Had this in a previous house I built and it seemed to work great... never had any surges or AC issues that created problems with AC-powered devices in the house... So, I've ordered two more for the new house I'm building!
    BERNARD -- wyckoff, NJ   1/20/2011
    Installed three Leviton 51120-1 surge suppressors on all three load centers in the home a month ago. So far they are working fine.
    DALE -- torrance, CA   12/30/2010
    After a long wait for the back order to be satisfied, I was happy with the design and quality of the unit. It was easy to install and is now protecting my house from surges, like the one that took out one computer power supply and our washing machine.

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