HIITIO is proud to announce that the HQ Series Plug-in Miniature Circuit Breakers have been officially UL certified, marking a significant milestone in delivering trusted circuit protection for the North American market.


Purpose-built for residential and light commercial applications, the HQ Series combines plug-in convenience with reliable performance, offering electricians and panel builders a professional-grade solution that meets stringent UL safety requirements.
With compatibility for standard BR-style load centers, the HQ Series ensures quick installation, seamless retrofitting, and dependable protection against overloads and short circuits.




HQ Series Highlights:
- UL Certified for North American applications
- Voltage Rating: 120/240VAC
- Interrupting Rating: 10kA
- Current Range: 5A–60A
- 1-Pole and 2-Pole options
- Plug-in, BR-style compatible design
The addition of UL certification reinforces HIITIO’s commitment to delivering safe, high-quality, and globally compliant solutions that align with the evolving needs of modern electrical infrastructure.
About HIITIO
HIITIO specializes in advanced circuit protection devices for residential, commercial, and industrial systems. With a full portfolio of UL, CE, and CB-certified solutions, we empower panel builders, OEMs, and distributors worldwide with products that are reliable, innovative, and built to last.
For certificates, product details, or sampling inquiries, please contact HIITIO directly.