Watch out: Fits only post-2014 Homeline plug-on neutral panels
Not for: Other panel brands
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 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
Editor's Rating: 4.6
Pros
Plugs into a Homeline panel like a breaker, with no extra wiring
50kA per phase surge rating
LED shows when protection is working
Made by the same brand as the panel, so the fit is exact
Takes only two panel spaces
Cons
Only fits Square D Homeline plug-on neutral panels made after 2014
Lower surge rating than the Eaton CHSPT2ULTRA
Needs two free panel spaces
Should still be installed by an electrician
Specs
Model
HOM250PSPD
Fits
Square D Homeline plug-on neutral load centers (2014 and newer)
Surge rating
50kA per phase
Voltage
120/240V, single phase
Mounting
Plug-on, 2 panel spaces, no wiring
Status
LED indicator
Weight
5.9 oz
Verdict
If you have a newer Square D Homeline panel, the HOM250PSPD is the easiest whole-home surge protector to fit. For other panel brands or the highest surge rating, the Eaton CHSPT2ULTRA is the better choice.
