The Square D HOM250PSPD is a whole-house surge protector that plugs into a Square D Homeline panel like a breaker. It is rated 50kA per phase, has an LED status light and costs about $100 to $120.
What you need before you buy
- A Square D Homeline plug-on neutral panel made after 2014.
- Two free panel spaces.
- An electrician to install it safely.
Why whole-home surge protection
Smart thermostats, EV chargers, solar inverters and appliances all have sensitive electronics. A panel surge protector stops big spikes from lightning or the grid before they reach them. The 2023 electrical code now requires one in new and upgraded services.
How it compares
| Square D HOM250PSPD | Eaton CHSPT2ULTRA | |
|---|---|---|
| Typical price | $100–$120 | $110–$185 |
| Surge rating | 50kA per phase | 108kA |
| Mounting | Plugs into the panel, 2 spaces | Outside the panel, wired to a 2-pole breaker |
| Fits | Square D Homeline (2014+) | Any 120/240V panel |
| Best for | Homeline panels | Highest rating, any brand |
See my Eaton CHSPT2ULTRA and Square D QO load center reviews.
Want to see other Smart Panels? Compare them side by side →
How I researched this: Square D’s HOM250PSPD product page and specs, the Amazon listing, and Schneider Electric’s installation video. Prices checked October 30, 2026.
Square D HOM250PSPD Surge Protective Device
The Square D HOM250PSPD plugs into a Homeline panel for whole-home surge protection with no extra wiring. Here is whether it fits yours.
Product Brand: Square D
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