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Navy NEC · Engineering

V21C AEGIS Mark C. Pope (MCP) 400Hz Power Conversion Maintenance Technician

Current service use not established

This code is listed in the directory. Inclusion alone does not confirm current service use.

A Navy Enlisted Classification: a skill designation sailors hold in addition to their rating.

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Overview

An AEGIS MCP 400Hz power conversion maintenance technician operates, maintains, troubleshoots, repairs, and reconfigures power conversion systems aboard DDG 121 and later AEGIS destroyers. The technician works on PowerMaster converters, current limiting devices, power distribution switchboards, solid state automatic bus transfers, and aircraft electronic servicing systems.

Minimum clearance: Secret

Core Skills

  • Solid-state automatic bus transfer maintenance
  • Current-limiting device and distribution switchboard repair
  • Aircraft electronic servicing system maintenance

Civilian Career Paths

Career associations are editorial assessments of the cited evidence, not an official crosswalk unless the evidence explicitly says so. O*NET supplies civilian occupation information, not proof of a military match. Related experience does not confer civilian qualifications. Tasks and tools below describe civilian work, not military training.

Electrical and Electronic Engineering Technologists and Technicians

Fault isolation, repair, and reconfiguration of MCP power converters and solid-state bus transfer equipment transfer directly to electrical and electronic equipment troubleshooting.

How to prepare: Complete a hands-on electronics test-equipment lab focused on diagnosing power-conversion faults and verifying repairs.

What the civilian work involves
  • Modify, maintain, or repair electronics equipment or systems to ensure proper functioning.
  • Replace defective components or parts, using hand tools and precision instruments.
  • Set up and operate specialized or standard test equipment to diagnose, test, or analyze the performance of electronic components, assemblies, or systems.

Electricians

Maintenance of power distribution switchboards, current-limiting devices, and automatic bus transfer equipment provides a foundation for civilian electrical equipment maintenance.

How to prepare: Ask an electrician apprenticeship program to assess your documented military electrical experience for advanced placement; shortened apprenticeships may be available based on experience and testing. Most states require an examination and license, with requirements varying by state.

What the civilian work involves
  • Use a variety of tools or equipment, such as power construction equipment, measuring devices, power tools, and testing equipment, such as oscilloscopes, ammeters, or test lamps.
  • Assemble, install, test, or maintain electrical or electronic wiring, equipment, appliances, apparatus, or fixtures, using hand tools or power tools.

Notes & Sources

Evidence for this guidance (4 documents)
  1. NAVPERS 18068F Vol II (NEOCS, Jul 2026 edition): NEC V21C

    [1] NEC entry "V21C - AEGIS Mark C. Pope (MCP) 400Hz Power Conversion Maintenance Technician"; cached text line 13503; NAVPERS 18068F Vol II, 2026-07 edition

    Supports: Solid-state automatic bus transfer maintenance, Current-limiting device and distribution switchboard repair, Aircraft electronic servicing system maintenance, Electrical and Electronic Engineering Technologists and Technicians (O*NET 17-3023.00), Electricians (O*NET 47-2111.00)

  2. O*NET: Electrical and Electronic Engineering Technologists and Technicians

    [2] O*NET 30.3 occupational data

    Supports: Electrical and Electronic Engineering Technologists and Technicians (O*NET 17-3023.00)

  3. O*NET: Electricians

    [3] O*NET 30.3 occupational data

    Supports: Electricians (O*NET 47-2111.00)

  4. Bureau of Labor Statistics: Electricians

    [4] How to Become an Electrician; Training; Licenses, Certifications, and Registrations; page dated 2026-08-27, retrieved 2026-09-23

    Supports: Electricians (O*NET 47-2111.00)

Defense contractor jobs for V21C

Descriptions may be summarized for clarity. Verify all information with your branch career counselor or official military documentation before making career decisions.

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