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Square D HEPD Whole Home Electronics Protective Device, AC Surge Protection, Type 1 SPD, 120/240VAC, 1-Phase 3-Wire, 80kA Current

Square D HEPD Whole Home Electronics Protective Device, AC Surge Protection, Type 1 SPD, 120/240VAC, 1-Phase 3-Wire, 80kA Current

Q: Will this protect from solar flares?

Yes, this device will help protect (never 100%) the home from Voltage surges from any cause, including solar-induced surges. Rare solar events CAN cause surges in commercial power systems. No protective device can function in every case, however. This is called science.

Q: where do you install this? from the power meter to the main circuit breaker then to Square D then to the rest of the breaker tree?

top reply by walker is incorrect...instruction offer two installation options 1) (preferred method) connect to service panel's bus bar "lugs" (just under the main breaker) these are always live if the main breaker is on, so you need to know what you are doing; option 2) connect to the closest (prefer first) double breaker slot (top two slots) on either side, and yes, use a 20 amp 240 V double breaker (so both 125V bars are protected). Two separate 20 amp 120V single pole breakers (one above the other on the same side) "attach" to same bus bars as the double breaker, but if one breaker trips, you lose half the protection, so you want to use a 20amp 240v double pole breaker! If you connect the HEPD to the top right single pole breaker and top left single pole breaker (one breaker on each side of the same "row"), you will only protect one of the 120V bus bars and not both. That is why 240V breakers are double wide, so they connect to both 120V bus bars (the right side does not connect to one bus bar and the left side to the other). Also, walker's mention of three wires from the pole...only two carry 120v each, the other one is the ground. If you are not knowledgeable, hire a professional to be safe...if you install it wrong, the insurance policy it provides is null and void.

Q: will this protect all the breakers in the panel or is it just for one breaker

It must be connected to it's own breaker in the panel. By doing that it protects the entire panel.

Q: How do I determine how many of these I need for my house? I have a main panel outside and 4 panels in the garage.

What size is your main service entrance panel?One of these units usually covers a 200 amp residential service.Interesting (and a bit strange) that you have so many subpanels in your garage.What kind of equipment are you running in your garage that require 4 subpanels?

Product ID: 273825119

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Details

Brand
Schneider
Colour
Black
Total power outlets
6
Voltage
600 Volts
Special features
LED status

⚡80kA surge capacity

🏠Whole home coverage

🔴LED status indicator

Frequently Bought Together

Schneider Electric – Square D HEPD Whole Home Electronics Protective Device, AC Surge Protection, Type 1 SPD, 120/240VAC, 1-Phase 3-Wire, 80kA Current

Square D by Schneider Electric HEPD50 Universal Whole House Surge Protection Device, 1-Phase, 3-Wire + Ground for 120/240V, 50kA, Black

Description

⚡ Power up your home’s defense with next-level surge protection!

SMART STATUS ALERTS - LED indicator instantly notifies you when protection needs renewal—never be caught off guard.
SEAMLESS INTEGRATION - Compact design mounts flush next to your load center for a sleek, professional setup.
PEACE OF MIND ALWAYS - Reliable CSA/UL certified protection that keeps your home safe during storms and power fluctuations.
UNRIVALED SURGE DEFENSE - Protect your entire home’s electronics with 80kA surge capacity—no device left behind.
EXTEND APPLIANCE LIFESPAN - Shield your investments from damaging voltage spikes and avoid costly replacements.

The Schneider Electric Square D HEPD Whole Home Electronics Protective Device delivers robust 80kA surge protection for 120/240VAC single-phase, 3-wire residential systems. Compact and easy to install next to your load center, it safeguards all connected electronics and appliances from damaging voltage spikes. Featuring a clear LED status indicator and certified by CSA/UL, this device ensures comprehensive, reliable whole-home surge suppression for enhanced appliance longevity and homeowner peace of mind.

Specifications

Manufacturer	Square D by Schneider Electric
Part number	HEPD80
Item Weight	449 g
Product Dimensions	6.78 x 9.53 x 9.14 cm; 449.06 g
Item model number	HEPD80
Size	80kA
Color	Black
Style	80kA
Pattern	Device
Voltage	600 Volts
Amperage Capacity	80 Kiloamps
Item Package Quantity	1
Number Of Pieces	1
Measurement System	English
Plug Profile	Plug-In Mount
Specification met	Csa/Nema/Ul
Special Features	LED status indicator
Specific uses	Whole Home Surge Protection
Included components	Surge protective device, instruction bulletin
Batteries Included?	No
Batteries Required?	No

Have a Question? See What Others Asked

Will this protect from solar flares?

where do you install this? from the power meter to the main circuit breaker then to Square D then to the rest of the breaker tree?

will this protect all the breakers in the panel or is it just for one breaker

How do I determine how many of these I need for my house? I have a main panel outside and 4 panels in the garage.

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