SPAN Panel System Designs & Specifications

Updated November 18, 2025 17:50

What are the system specs for SPAN Panels?

We currently have three different SPAN Panels, with slightly different system specifications linked below:

Keep in mind that your SPAN authorized installer will help determine which product is best suited for your home’s electrical needs. You can get connected with a SPAN authorized installer by filling out our form: Get Started.

SPAN Panels replace your existing electrical panel, becoming the central energy management system for your home. SPAN Products are controllable via the SPAN Home App.

What can SPAN do for me and my home?

SPAN Panels are an invaluable asset that allows homeowners to have:

Customizable Battery Backup
Backup Time Remaining Estimates
Real-time Load Control
Energy Monitoring & Insights
Load Management for Upgrade Avoidance
Manage loads with PowerUp™

Is SPAN a good match for my new construction or retrofit project?

SPAN Panels are designed for installation flexibility and work well for both new homes and retrofit projects.

For new construction, SPAN Panels make it easier to enable clean energy homes regardless of whether the project includes solar and storage or simply paves the way for these improvements to be added in the future.

For retrofit projects, SPAN Panels enable cost-effective, streamlined solar and storage installations while delivering a completely differentiated experience for home energy control and customizable whole-home backup.

Are SPAN Panels serviceable?

All circuit breakers in SPAN Panels are serviceable by an electrician. A SPAN authorized installer is required to service the internal assembly and, depending on the panel, replace parts. Please contact your SPAN installer or SPAN Support if you require a service visit.

Is PowerUp™ Code Compliant?

Yes. While approval for any residential electrical installation is ultimately up to local regulations, all versions of the National Electrical Code or “NEC” (NFPA-70) allow electrical services and distribution systems to be sized below the maximum ratings of all connected loads. While the newest NEC editions provide more focused language on this topic, all editions of the NEC in use across the US today provide an allowance for SPAN’s PowerUp™ energy management system (EMS), depending on the use case.

What breakers are compatible with SPAN?

SPAN Panels are compatible with industry standard 1-inch breakers, both single and 2 pole, including Eaton, Siemens, and Square D, including tandem, quad, AFCI, and GFCI styles. A complete list of our compatible breakers can be found in the appendix of our installation guides:

Do all panels come with a main breaker?

SPAN Panel MLO 48 and SPAN Panel MLO 24 are not designed with a main breaker slot. These panels are intended to serve as sub panels to a panel with a main breaker.

The following panels do have a main breaker slot and come with a main breaker in place:

SPAN Panel MAIN 16
SPAN Panel MAIN 32
SPAN Panel MAIN 40

You can learn more about our panel designs by checking out our data sheets here.