ABB THQLSURGE2 Type 1 Surge Protective Device - Whole-Home Protection

In this review of the ABB THQLSURGE2, the bottom line is simple: this plug-on Type 1 surge protective device is aimed at homeowners and small commercial installers who want durable, whole-home protection that is easy to install. The reviewer found the THQLSURGE2 particularly useful at service entrances and inside compatible PowerMark load centers, where its plug-on design and LED operational indicators make it a practical choice for meeting modern code guidance and protecting connected electronics from severe voltage spikes.

Key Features

• Comprehensive electronic protection: Designed as a Type 1 SPD to protect an entire residence or office from harmful power surges, helping extend the service life of connected devices.
• Easy installation: Plug-on design with pigtail makes installation at service entrances, in subpanels, or in PowerMark PRO load centers straightforward and time-saving for electricians.
• Code-focused safety indicators: LED indicators provide a clear visual status of the unit and support compliance with NEC 2023 Article 230.67 requirements for essential surge protection.
• High surge handling capacity: Rated to handle up to 25kA per phase, offering robust defense against severe transients and lightning-induced spikes where allowed by installation rules.
• Brand assurance: Manufactured by ABB (including GE by ABB product lines) so buyers can verify labels and third-party certifications like UL or Intertek for authenticity and safety.

Who It's For

The THQLSURGE2 is best for homeowners, electricians, and small office managers who need a hardwired, whole-home surge device that is compatible with PowerMark load centers and other installations where a plug-on SPD makes sense. It suits installations at the service entrance or subpanel locations where code-driven, visible status and high surge capacity matter.

Those who should look elsewhere include owners who need a point-of-use strip for a single workstation or people seeking a wireless or smart-managed surge solution; this model is focused on electrical-panel protection rather than consumer power strips or networked monitoring features.

Pros & Cons

Pros

• Robust surge handling of up to 25kA per phase gives strong protection for critical circuits.
• Plug-on with pigtail simplifies mounting in compatible load centers and speeds installation.
• LED operational indicators support quick verification of status and help meet NEC requirements.
• Produced by ABB (including GE by ABB lines), enabling buyers to check authentic labeling and certifications.

Cons

• Not a point-of-use surge strip and lacks networked monitoring or smart features some users might want.
• Installation still requires panel access and a qualified installer for safe, code-compliant mounting.

Specifications

Product type	Type 1 Surge Protective Device (SPD)
Installation	Plug-on with pigtail for load centers and service entrances
Surge handling	Up to 25kA per phase
Indicators	LED operational status indicators
Compatibility	PowerMark PRO load centers and similar panel installations
Manufacturer	ABB (includes GE by ABB product lines)

Our Verdict

The ABB THQLSURGE2 is a solid, no-frills panel-mounted surge protector for anyone who needs reliable whole-home or small office protection without extra connectivity. Its plug-on design, clear LED status, and 25kA per phase capability represent good value for installations that require robust, code-aware surge defense installed by a qualified electrician.

Frequently Asked Questions

Can the THQLSURGE2 be installed in any load center?
The device is designed for plug-on installation in PowerMark PRO and compatible load centers; verify physical and labeling compatibility before purchase.

Does it meet code requirements?
The unit includes LED indicators to support NEC 2023 Article 230.67 requirements, but final compliance depends on proper installation and local code interpretation.

Is this a consumer power strip?
No, this is a Type 1 panel-mounted surge protective device meant for service entrances and subpanels, not a point-of-use strip.