At The H-J Family of Companies, we have built a strong reputation as a leading provider of solutions across transformers and switchgear sectors, delivering high-quality solutions that meet the unique demands of each industry.

The H-J Family of Companies will be an exhibitor at Distributech Dallas 2025, March 24-27! Connect with us while you’re at the show. Schedule a meeting with our team to discover how H-J serves and supports communities worldwide.

The H-J Family of Companies is a global leader in the manufacturing and supply of products and solutions to the heavy electrical industry. These components support the transformer, switchgear, regulator, recloser and breaker industries, along with specialties in the utility market.

Yes, I would like to know more about The H-J Family of Companies. Solutions Catalog Services About H-J Resource Center Contact H-J Fuse Breaker Coordination Tool Careers ISO 9001:2015 CERT. Contact Us. Phone: +1 (636) 677-3421. Fax: +1 (636) 376-1624 ...

The H-J family portfolio includes single-phase and three-phase circuit breakers for installation on the low-voltage side of CSP type transformers to protect against external overloads and short circuits.

Since 1969, H-J has been providing quality parts for transformer, switchgear, and breaker manufacturers, as well as most companies involved with transmission and distribution equipment.

The H-J Family of Companies has a certified technical team to provide solutions for retrofits, spare parts, remote technical assistance, and preventive and corrective maintenance to ensure our customers can concentrate on their core business.

Yes, I would like to know more about The H-J Family of Companies. Solutions Catalog Services About H-J Resource Center Contact H-J Fuse Breaker Coordination Tool Careers ISO 9001:2015 CERT. Contact Us. Phone: +1 (636) 677-3421. Fax: +1 (636) 376-1624 ...

The H-J Family of Companies helps you properly size and select the electrical and mechanical protective devices for your transformer designs. From fuse-breaker coordination to Buchholz relay and pressure relief valve sizing, our team is ready to help you.

The H-J Family of Companies can provide assistance to identified needed parts, recommended spare parts packages and we keep on hand many common machine components ready to ship as needed.