WattBox™ Power Conditioner, 8 Outlets -  3240J, EMI/RFI Filtration

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WattBox™ Power Conditioner, 8 Outlets - 3240J, EMI/RFI Filtration

Item#: WB-400-8

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WattBox™ Power Conditioner, 8 Outlets - 3240J, EMI/RFI Filtration
The WB-400-8 power conditioner provides 8 outlets on the back of the rack - where you need them most. Of course if you're mounting it to the back of a cabinet or on the wall, it comes with all the necessary hardware for that, too. Connected equipment is safe and sound thanks to best-in-class surge protection and noise filtration for improved audio and video performance. Our engineers just couldn’t stop there – this is custom install! So, instead of using inexpensive plastic they built it like a tank with an 18 gauge steel chassis. Now THAT'S professional grade power.


  • Fireproof MOV

    Ceramic Encased Surge Components
  • Total Outlets

    8 Switched

  • Filter Banks

    1 Isolated Noise Filter
  • Surge Protection

    Energy Dissipation

Installer Friendly

Rack Mount Versatility
Normal chassis-based power products put the outlets closer to the front of the rack, making them tough to reach and in some cases impossible to use wall warts. That just didn't make sense - so our engineers came up with a better way with the patent-pending WattBox design. Exclusive back-of-rack mounting puts those hard-to-reach outlets where you need them most. And the included brackets let you mount it in any direction - straight on for traditional installation, up/down/angled for increased visibility when installed at the top or bottom of the rack, you can even recess it for easier cable management and to reduce depth.

Cabinet/Shelf Mounting
Whether you're installing into a rack, shelf, or cabinet, we have you covered! Simply turn the small bracket around backwards and the surge protector can easily mount in the back of a cabinet or on a wall. Turn the bracket facing down, apply the included feet and you can quickly secure it to a shelf or the top of the cabinet.

Power Adapters Welcome
We've been there before - you get all the power cords just where you want them, only to forget about the "wall wart" for the IR block or the network switch or the... Then you have to undo something just to make it all fit - oh... and then the bulky "wart" covers up the outlet next to it! To solve this, we have spaced the outlets as far apart as possible and turned them 90-degrees so every outlet can be used. And since those bulky power supplies are prone to falling out, we even supply tie-down straps to keep them in place.

Less is More
Other manufacturers pad their chassis with lots of dead space in a failed attempt to get the outlets near the back of the rack. This adds cost, wastes space – and more important, really doesn’t solve the problem of outlet accessibility. The back-of-rack WattBox design gets the outlets where you need them and removes the unnecessary bulk to give you more room in the rack.

Protection & Conditioning

Noise Filtration
Sensitive A/V equipment is negatively impacted by noisy appliances and other electronics that create interference on the AC line. All WattBox power conditioners feature noise filtration that cleans up this "dirty power" to deliver the purest A/V experience possible. By lowering the audio noise floor and reducing hum, you hear exactly what was intended. Video performance can see an improvement too - with reduced power-related artifacts on HD displays.

Surge Protection
Surges can come from a variety of sources - from fluctuations at the power company to catastrophic events such as lightning. This excess energy can damage your connected equipment if not properly protected. The Joule rating is a measure of a surge protector's ability to "clamp" this excess energy down to a safe level - the higher the rating, the more protection your equipment has.

Fireproof MOVs
MOVs, or Metal Oxide Varistors, are surge protection components that dissipate excess energy in the form of heat. Under extreme conditions, lower quality MOVs can get so hot they catch on fire! WattBox power conditioners feature ceramic-encased MOVs to protect not only your system but your home as well.

AC Disconnect
As an added precaution, in the event of a catastrophic spike, a thermal fuse completely disconnects AC power from your system to stop the surge in its tracks before it can get to your connected equipment. All three "legs" of the power (hot, neutral and ground) will disconnect for unsurpassed equipment protection.


Flexible Power Cable
Bulky power cables can cause all sorts of frustration when installing in a cabinet or rack. This WattBox 400-series power conditioner includes a 6 ft, detachable IEC cord that is super-flexible for easy wire management. The connector is gold plated to resist corrosion and minimize loss. There's also a locking clip to prevent accidental removal. For custom lengths, replacement cords are available from 6 inches long up to 15 feet.

Cord Labels
Pick a card, any card. Sometimes it can feel like a guessing game when you're servicing equipment and trying to figure out which outlet goes to what piece of gear. To prevent this, apply the supplied labels to each cord and know exactly what's what.


AC Power
Line Voltage 120V, 60Hz
AC Input Connection IEC C-14
Power Cord Length 6 Feet
Circuit Breaker Rating 15A
UL Current Rating 12A
Voltage Protection Rating (UL 1449 3rd Edition) 500V
Joule Rating 3240 Joules
Surge Component Ceramic Encased MOV
Protection Modes L-N, L-G, N-G
Peak Impulse Current 72,000A
Disconnect Circuitry Yes
Thermal Fuse Yes
Type NEMA 5-15
Numer of Outlets 8
Switched All
EMI / RFI Noise Filtration
All Outlets 53 dB, 300KHz to 50 MHz
UL Certifications
UL 60950-1, UL 1449, UL 498, UL 1283
3.47" H x 17.02" W x 2.13" D


Lifetime Limited Warranty
This SnapAV® product has a Lifetime Limited Warranty. This warranty includes parts and labor repairs on all components found to be defective in material or workmanship under normal conditions of use. This warranty shall not apply to products which have been abused, modified or disassembled. Products to be repaired under this warranty must be returned to SnapAV or a designated service center with prior notification and an assigned return authorization number (RA).

Connected Equipment Guarantee
Lifetime - see SnapAV's Surge Protector Equipment Warranty Policy

Connected Equipment Guarantee Amount