Square D QO2175SB Surge Protective Device
- 5 kA, SCCR 22.5 kA
- 120/240 VAC, 1 phase, 3 wire
- QO load centers, plug-on, 2 adjacent spaces
- Individually fused MOVs
- LED status indicator, 5.92 ounces
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A small plug-on surge device for QO panels that adds basic whole-home protection. Its surge rating is modest, and it will not fit Homeline or other panels.
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ASIN: B0CKZZ3H41Model: QO2175SBCategory: Surge Protectors
Overview
A home or small business with a Square D QO panel can add this plug-on surge device in two adjacent spaces. Individually fused MOVs suppress transients, and an LED shows whether it is working.
Quick installation in a QO panel and fused MOVs give simple panel-level protection. The surge rating is modest, which suits it to secondary protection.
Who it's for
QO panel owners adding protection for HVAC, solar or EV charging circuits get a simple plug-on device. Owners of Homeline or other brand panels need a model made for those.
Pros and cons
- Each MOV individually fused
- LED status indicator
- Fits QO load centers only
- Modest surge rating
- Title voltage conflicts with bullets
Performance notes
Fused MOVs disconnect individually if they fail, so one bad part does not take the whole device down unsafely. Surge rating sets how large a spike it can divert, and this one is meant as secondary protection. The LED confirms operation without testing tools.
Specifications
| Brand | Schneider Electric |
|---|---|
| Model | QO2175SB |
| Dimensions & fit | |
| Item weight | 5.92 ounces |
| Power & efficiency | |
| Voltage | 120/240 VAC, 1 phase, 3 wire |
| Construction & materials | |
| Material Type | Metal |
| Compatibility & installation | |
| Mounting type | Plug-on, 2 adjacent spaces |
| Compatible Devices | QO loadcentre |
| Other details | |
| Surge Protection Rating | 5 kA, SCCR 22.5 kA |
| Other Special Features of the Product | Individually fused MOVs, LED indicator |
Frequently asked questions
How much space does the QO2175SB need?
Two adjacent mounting spaces, with a plug-on design.
What voltage is the Square D QO2175SB?
The bullets give 120/240 VAC, 1 phase, 3 wire. The title's 12/24V figure conflicts with that.