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The connection service is free; contractor services are not. Contractors are independent. Surge Protection Experts may receive compensation for qualifying calls. Verify licensing and insurance.

Free contractor connection service. Surge Protection Experts is a free service to assist homeowners in connecting with local service contractors. The connection service is free; contractor services are not. All contractors are independent, and Surge Protection Experts does not warrant or guarantee any work performed. It is the homeowner’s responsibility to verify that a hired contractor furnishes the license and insurance required for the work. Surge Protection Experts may receive compensation for qualifying calls. Availability, pricing, and service terms vary by location. All persons depicted in a photo or video are actors or models and are not contractors listed through this site. This number is not an emergency service. For fire, smoke, sparking, electric-shock risk, downed lines, or another immediate danger, leave the area and contact emergency services or the utility as appropriate.

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Category: Choosing Protection

Choosing protection begins with electrical fit, not a “best” badge or the largest kA number. This collection translates the specifications that determine whether a device belongs in the proposed location: SPD type, system voltage and phase, connection method, panel compatibility, voltage protection rating, nominal discharge current, short-circuit current rating, MCOV, protection modes, enclosure, and status indication. It also separates current products from phased-out models and puts warranty headlines beside their conditions. Use the selection guide and ratings explainer before moving into model-specific fit guides or the compatibility-first comparison. A qualified electrician must confirm the actual service, panel, available fault current, instructions, routing, permits, and local requirements before purchase or installation.

The goal is a short list of electrically plausible options, not a universal winner detached from the home.

Latest guides

Four specification cards comparing surge current, nominal discharge current, voltage protection rating, and short-circuit current rating for a generic whole-home surge protector.

Choosing Protection

Whole-House Surge Protector Ratings Explained

Translate kA, In, VPR, MCOV, SCCR, protection modes, enclosure, and status ratings without reducing whole-home surge protection to one number.

Updated October 20, 2026

Generic compact Type 1 surge protector and a two-path diagram illustrating the Leviton R2120-B reduced protection modes.

Choosing Protection

Leviton R2120-B Review and Fit Guide

A documentation-based Leviton R2120-B review covering Type 1 fit, reduced protection modes, VPR, In, SCCR, NEMA 4X, monitoring, and warranty.

Updated October 20, 2026

Current generic external surge protector beside a faded legacy unit, illustrating the Siemens FSPD140 replacement for FS140.

Choosing Protection

Siemens FSPD140 vs FS140: Current Replacement Guide

Siemens identifies FSPD140 as the current replacement for phased-out FS140. Compare lifecycle, ratings, monitoring, warranty, fit, and buying cautions.

Updated October 20, 2026

Generic compact Type 1 whole-home surge device beside a closed outdoor-rated panel, illustrating Square D HEPD80 fit.

Choosing Protection

Square D HEPD80 Review and Fit Guide

A documentation-based Square D HEPD80 review covering Type 1 fit, ratings, NEMA 4X enclosure, LED status, warranty conditions, and alternatives.

Updated October 20, 2026

Generic external whole-home surge protector beside a closed residential panel, illustrating the Eaton CHSPT2ULTRA form and fit questions.

Choosing Protection

Eaton CHSPT2ULTRA Review and Fit Guide

A documentation-based Eaton CHSPT2ULTRA review covering fit, VPR, In, SCCR, enclosure, warranty conditions, tradeoffs, and installer questions.

Updated October 20, 2026

Homeowner and electrician comparing a whole-home surge protector specification sheet beside a closed electrical panel.

Choosing Protection

How to Choose a Whole-House Surge Protector

Choose a whole-house surge protector by system compatibility, permitted type, VPR, In, SCCR, modes, enclosure, status, installation, and warranty.

Updated October 20, 2026

Four generic whole-home surge protector forms arranged for a compatibility-first comparison beside a residential electrical panel.

Choosing Protection

Best Whole-House Surge Protectors: A Compatibility-First Comparison

Compare four current whole-house surge protectors by system fit, type, VPR, In, SCCR, modes, enclosure, monitoring, and documented warranty.

Updated October 20, 2026