Leviton Surge Panel, 120/208V ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$10.81
Leviton Surge Panel, 120/208V 3-Phase, NEMA 3R Enclosure

Leviton Surge Panel, 120/208V 3-Phase, NEMA 3R Enclosure

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Model: 32120-1

In Stock (leaves warehouse same day if ordered before 3pm ET)

$10.81
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Leviton Surge Panel, 120/208V 3-Phase, NEMA 3R Enclosure

The Leviton Surge Panel is a whole-building surge protective device engineered for 120/208V 3-Phase WYE or Delta electrical systems. Housed in a NEMA 3R enclosure for outdoor and wet-location durability, this panel is UL 1449 4th Edition Type 2 listed, delivering code-recognized surge suppression performance for commercial and light-industrial services. It is also Decora Home Control & X10 compatible, allowing integration with existing home automation and control infrastructure. Available in Configuration 1 and DY3 to match specific panel and service requirements.

Key Features

  • System Voltage: Engineered for 120/208V 3-Phase WYE or Delta electrical service configurations.
  • Device Type: Surge protective panel designed for whole-panel transient voltage suppression.
  • Enclosure Rating: NEMA 3R enclosure supports outdoor and wet-location mounting.
  • Listing: UL 1449 4th Edition Type 2 rated for verified surge protection performance.
  • Smart Home Compatibility: Decora Home Control & X10 compatible for integration with automation systems.
  • Configuration Options: Offered in Configuration 1 and DY3 to suit specific installation needs.

Certifications & Compliance

  • UL 1449 4th Edition Type 2 Listed
  • NEMA 3R Enclosure Rating
  • Suitable for Outdoor and Wet-Location Installation

Technical Specifications

  • Device Type: Surge
  • Voltage/Configuration: 120/208V 3-Phase WYE or Delta
  • Enclosure: NEMA 3R
  • Listing: UL 1449 4th Edition Type 2
  • Available Configurations: 1, DY3
  • Compatibility: Decora Home Control & X10

Typical Applications

  • Commercial and Industrial Electrical Service Entrances
  • 3-Phase Panelboard and Distribution Protection
  • Outdoor and Wet-Location Electrical Installations
  • Facilities Using Decora Home Control or X10 Automation
  • Renovation and New Construction Surge Protection Upgrades

Why Leviton?

Leviton builds surge protection solutions to recognized industry listings, and this panel's UL 1449 4th Edition Type 2 rating and NEMA 3R enclosure reflect that commitment to verified, code-compliant performance. For electrical professionals specifying reliable surge protection on 120/208V 3-Phase systems, this panel offers a trusted, well-documented option backed by Leviton's reputation for durable electrical products.

Manufacturer Resources

Product Specs

Device Type:
Surge
Product Type:
Surge Panel
Listing:
UL 1449 4th Edition Type 2
Department:
Electrical
Product Group:
Wiring Devices
Short Circuit Current:
100 kiloamps
Storage Temperature:
-20 To 85 degrees celsius
Flammability Class:
Rated V-2 Per UL 94
Connection Type:
Parallel
Country of Origin:
Mexico
Frequency:
50/60 hertz
Warranty Length:
5 years
Operating Temperature:
-10 degrees celsius
Product Subgroup:
Shop All Leviton

Leviton 32120-1 – Frequently Asked Questions

1) Will the Leviton 32120 surge panel work on a 120/208V 3-phase system, and does it matter if my service is WYE or Delta?
The 32120 is built for 120/208V 3-phase service and covers both WYE and Delta configurations, so the transformer arrangement on your service doesn't rule it out. What it will not do is protect a 277/480V system. If the panelboard you're feeding is 277/480, this is the wrong voltage class and you need an SPD rated for that service instead. Frequency is 50/60 Hz, so it's fine on either standard supply.
2) Is the Leviton 32120 wired in-line with the feeders or tapped off the panel?
Parallel. The 32120 surge panel is a parallel-connected (shunt) device, meaning it taps off the panelboard through a dedicated breaker or disconnect rather than carrying the load current through it. Practical consequence for the install: you size the feed conductors and the breaker for the SPD, not for the building load, and you keep the lead length between the breaker and the panel as short and straight as you can, since lead length is what determines the let-through voltage you actually get. A series-connected SPD would sit in the load path and limit the current it can pass; this one does not.
3) Does the Leviton 32120 meet the NEC requirement for a Type 2 SPD on the load side of the service disconnect?
Yes. The 32120 is UL 1449 4th Edition Type 2 listed, which is the classification for a device installed on the load side of the service disconnect overcurrent device, including at the main panelboard or a downstream distribution panel. Type 2 is what an inspector expects to see at a panelboard installation. It is not classified Type 1, so it isn't intended for line-side-of-the-service-disconnect mounting without an overcurrent device ahead of it.
4) What short circuit current rating does the Leviton 32120 surge panel have, and will it hold up on a high-fault commercial service?
The 32120 carries a 100 kA short circuit current rating. That covers most commercial and light-industrial services, where available fault current at the panelboard typically runs well below that figure. The number matters because an SPD's SCCR has to equal or exceed the available fault current at its point of connection, so pull the fault current study or the utility figure for that panel and confirm it lands under 100 kA before you commit.
5) Do I need a surge panel at the main service or a plug-in strip at the equipment?
They do different jobs and a facility usually wants both. A panel-mounted device like the Leviton 32120 is a parallel-connected Type 2 SPD that clamps transients entering the whole panelboard, so it protects everything fed from that board including motors, HVAC controls and lighting drivers that no plug strip ever touches. Point-of-use protection at a receptacle handles the residual let-through and the surges generated inside the building downstream of the panel. If you are choosing only one for a commercial service, the panel device is the one that protects the equipment you cannot easily replace.
6) Can the Leviton 32120 surge panel tie into an existing X10 or Decora Home Control system?
Yes. The 32120 is Decora Home Control and X10 compatible, so it can sit in a building that already runs powerline automation without interfering with it. This matters in multi-family and hospitality retrofits where the automation layer is already installed and the SPD is being added later. It is still a whole-panel surge device first: the automation compatibility does not make it a controller or a signal coupler.
7) Does the Leviton 32120 surge panel meet flammability requirements for a spec job?
The 32120's housing material is rated V-2 per UL 94, the flammability classification submittal reviewers ask for on electrical enclosures and device bodies. Pair that with the UL 1449 4th Edition Type 2 listing and the NEMA 3R rating and you have the three items that typically get checked on an SPD submittal for a commercial service entrance.
8) Where is the Leviton 32120 surge panel manufactured, for Buy American or country-of-origin documentation?
The 32120 surge panel is manufactured in Mexico. That is the figure to put on a country-of-origin declaration for a government, healthcare or education procurement package. It is a USMCA-country origin, not domestic, so on a job carrying a Buy American Act or BABA requirement it will need to be checked against that specific clause.
How fast can I get the Leviton 32120-1 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Leviton 32120-1 come with a warranty?
Absolutely. The Leviton 32120-1 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Leviton 32120-1?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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