Army Reserve
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The installation and maintenance for all of the Army’s interior electrical systems is a necessity that allows the military to operate and successfully accomplish a multitude of critical tasks.

Installing these electrical circuits in military structures is the primary responsibility of the Interior Electrician. They ensure mission success by properly connecting and safely distributing electricity using interior wiring. Soldiers in this MOS are responsible for installing basic electrical hardware such as circuit breakers, service panels, and switches. Duties may also include the testing, inspecting and repairing of various military interior electrical systems.

This career field requires individuals who are interested in electricity, science, and math... and who enjoy doing physical work with hand and power tools. After successfully completing Basic Combat Training, you will attend 6 weeks of Advanced Individual Training at the U.S. Army Engineer School at Fort Leonard Wood, Missouri. There you will the fundamentals and safety procedures for working with electricity... how to analyze electrical layouts... techniques for wiring switches, receptacles and light fixtures... and how to troubleshoot malfunctions in electrical circuits.

After successful completion of training, you will work supporting Army operations on the field and around the world. You may also have the opportunity to advance in your career through additional technical, tactical, and leadership training. The teamwork, discipline, and leadership skills gained by serving in this MOS can help you transition to the civilian workforce. A crucial member of the Army’s vertical construction engineer team.

Military Occupational Specialty: Interior Electrician.

Interior Electrician (12R)

  • Enlisted
  • Officer
  • Active Duty
  • Army Reserve
  • National Guard
  • Entry Level


The interior electrician is primarily responsible for the installation and maintenance for all of the Army’s interior electrical systems.

Job Duties

  • Install transformers, junction boxes, circuit breakers, service panels, switches, electrical boxes and lightning rods
  • Read blueprints, wire plans and repair orders to determine layouts/repair
  • Test equipment for the operational conduction of circuits
  • Inspect power distribution systems, shorts in wires and faulty equipment
  • Repair and replace faulty wiring and lighting fixtures


Those who want to serve must first take the Armed Services Vocational Aptitude Battery, a series of tests that helps you better understand your strengths and identify which Army jobs are best for you.


Job training for interior electrician requires 10 weeks of Basic Combat Training and seven weeks of Advanced Individual Training. Part of this time is spent in the classroom and part in the field with on-the-job instructions, including on-the-job instruction for installation and repair.

Some of the skills you’ll learn are:

  • Fundamentals of electricity
  • Electrical circuit troubleshooting
  • Safety procedures
  • Techniques for wiring switches, outlets and junction boxes

Helpful Skills

  • An interest in electricity, science and math
  • Ability to use hand tools
  • Preference for doing physical work

Required ASVAB Score(s)

Electronics (EL): 93

Learn more about the ASVAB and see what jobs you could qualify for.


Total compensation includes housing, medical, food, special pay, and vacation time. Learn more about total compensation.

Earn Cash For In Demand Jobs

You could earn up to $40,000 in cash bonuses just for enlisting under certain Military Occupational Specialties. Visit Jobs in Demand to see if this job qualifies for an enlistment bonus.

Education Benefits

In the Army, qualified students can earn full-tuition, merit-based scholarships, allowances for books and fees, plus an annual stipend for living expenses. Learn more about education benefits.

Future Civilian Careers

The skills you learn will help prepare you for a career with electrical contracting companies. 


Those interested in this job may be eligible for civilian employment, after the Army, by enrolling in the Army PaYS program. The PaYS program is a recruitment option that guarantees a job interview with military friendly employers that are looking for experienced and trained Veterans to join their organization. Find out more about the Army PaYS Program at


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