Circuit Breaker Test Technician

CEL Critical Power; Williamsburg (VA); On-site; USD 60,000 - 75,000; Full time

Job summary

CEL Critical Power in Williamsburg, Virginia, is seeking a Circuit Breaker Test Technician to join our expanding team. You will test, inspect, troubleshoot and document LV/MV circuit breakers used in critical power and data center applications, ensuring compliance with NFPA 70E and safety standards.

Reporting to the Service Manager, this role offers hands-on testing with primary and secondary injection, DLRO, insulation resistance, and rigorous documentation to support project delivery across

Qualifications

• 2+ years of electrical, commissioning, testing or related experience.
• Experience testing LV/MV circuit breakers preferred.
• Military electrical experience valued.

Responsibilities

• Electrical testing of LV and MV circuit breakers
• Primary and secondary injection testing
• DLRO (Digital Low Resistance Ohmmeter) and insulation resistance testing
• Troubleshooting and fault identification
• Test documentation and reporting
• NFPA 70E compliance

Skills

Circuit breaker testing

Troubleshooting

Electrical schematics

Documentation

Safety compliance

Education

High school diploma or equivalent

NETA certification preferred

Job description

CEL Critical Power is a global provider of mission-critical power solutions operating at the center of the AI, hyperscale data center and critical infrastructure ecosystem. An Irish-based manufacturer, distributor and exporter of electrical switchgear, controls and related products with over 40 years of experience, CEL is now firmly focused on supplying the global data center industry at scale. Operating from our 500,000 sq. ft. manufacturing facility in Williamsburg, Virginia, we aim to double in size each year for the next three years.

Role Purpose

Reporting to the Service Manager, the Circuit Breaker Test Technician is responsible for the testing, inspection, troubleshooting and documentation of low-voltage and medium-voltage circuit breakers used in critical power and data center applications.

Scope of Accountability

• Electrical testing of low-voltage and medium-voltage circuit breakers
• Primary and secondary injection testing
• DLRO (Digital Low Resistance Ohmmeter) and insulation resistance testing
• Troubleshooting and fault identification
• Test documentation and reporting
• NFPA 70E compliance

Electrical Testing & Inspection

• Perform LV and MV breaker testing
• Primary injection testing
• Secondary injection testing
• Contact resistance (DLRO) testing
• Insulation resistance testing
• Trip-time and coil testing

Troubleshooting & Documentation

• Identify and document deficiencies
• Review results against acceptance criteria
• Maintain complete test records

Safety & Compliance

• Follow NFPA 70E practices
• Use PPE
• Follow LOTO procedures

Requirements

Experience

• 2+ years of electrical, commissioning, testing or related experience
• Experience testing LV/MV breakers preferred
• Military electrical experience valued

Qualifications

High school diploma or equivalent required. NETA certification preferred not required.

Skills & Competencies

Circuit breaker testing, troubleshooting, electrical schematics, documentation, safety compliance.

Why Join CEL Critical Power?

CEL has been delivering high-quality, bespoke power distribution solutions for over four decades, with products that stand the test of time.

Join a Trusted Industry Leader - 42 Years of Excellence

CEL has been delivering high-quality, bespoke power distribution solutions for over four decades, with products that stand the test of time.

Be Part of a Global Expansion

With CEL launching its first US manufacturing plant, you will have the opportunity to work on international projects and documentation standards while collaborating with colleagues across North America.

Collaborate with World-Class Engineers, Vendors & Industry Experts

You’ll work alongside leading engineers, project managers, document controllers, product managers, and global vendors, ensuring excellence and operational success across CEL’s international teams.

Shape the Future of CEL - Critical Power

This is more than just an operator role—it's an opportunity to help forge the future of CEL and our expansion across the US.

Competitive Salary, Benefits & Career Growth

We offer structured career development, professional training, and leadership opportunities, ensuring long-term career progression.

Equal Opportunity Employer

CEL Critical Power is an Equal Opportunity Employer. We are committed to building a diverse, inclusive and high-performing workplace. We strongly believe that seeking out and hiring the most diverse talent and creating an inclusive workplace is the way to create an exceptional and innovative environment for our employees, which will deliver excellence in service to our customers. We encourage applications from people with diverse backgrounds and experience to join this multicultural, hard-working team. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status or any other characteristic protected by law.