Current Minnesota Class A Master format: 80 questions, 5.5 hours, and 70% required to pass. Current licensing examinations use the 2026 NEC, and Master preparation adds advanced calculations, planning, layout, supervision, and contractor responsibility.
What Is the Minnesota Class A Master Electrician Exam?
The Minnesota Class A Master Electrician license is the advanced personal electrical credential administered by the Minnesota Department of Labor and Industry. Master electricians may perform and supervise electrical work within the statewide scope of the Class A license.
The Master exam requires strong NEC knowledge, calculations, theory, system planning, installation judgment, and familiarity with Minnesota electrical laws and rules.
Exam answer: 80 questions, 5.5 hours, and a 70% passing score.
Code answer: current Minnesota electrical licensing examinations use the 2026 National Electrical Code.
Contractor answer: a Minnesota electrical contractor must designate a responsible licensed individual who holds an active Master Electrician license.
The Class A Master credential is therefore both an advanced electrician license and the key personal license behind Minnesota electrical contractor responsibility.
Minnesota Master Electrician Exam Domains
DLI does not publish an official fixed percentage-by-domain blueprint, so the table follows the current Master-level knowledge areas without inventing weights.
| Exam Area | What to Study | Study Focus |
|---|---|---|
| General NEC Requirements | Definitions, listings, approvals, working space, identification, equipment ratings, and general rules | Core foundation |
| Services and Feeders | Services, feeders, disconnects, load calculations, demand factors, and conductor sizing | Master calculation priority |
| Branch Circuits | Branch circuits, loads, receptacles, GFCI/AFCI, and conductor requirements | High priority |
| Grounding and Bonding | Grounding electrodes, bonding, equipment grounding, separately derived systems, and sizing | High priority |
| Overcurrent Protection | Breakers, fuses, conductor protection, OCPD sizing, and tap rules | High priority |
| Conductors and Wiring Methods | Ampacity, adjustment, correction, raceways, cables, boxes, fill, support, and protection | High priority |
| Motors and Transformers | Motor circuits, controls, overloads, transformer sizing, protection, and separately derived systems | Advanced calculation area |
| Special Occupancies and Equipment | Hazardous locations, healthcare, pools, PV, energy storage, generators, emergency systems, and other special installations | Broad NEC scope |
| Advanced Electrical Calculations | Services, feeders, loads, voltage drop, conductors, motors, transformers, box fill, and raceway fill | Highest priority |
| Planning, Layout and Supervision | Planning electrical work, laying out systems, supervising installations, and code-compliance responsibility | Master-level distinction |
| Minnesota Laws and Contractor Rules | Licensing, supervision, permits, inspections, responsible licensed individual duties, and contractor requirements | Required state review |
Minnesota Master Electrician Exam Breakdown
Official LicenseClass A Master Electrician
Exam AbbreviationAM
Exam Questions80 questions
Exam Time5.5 hours | 330 minutes
Passing Score70%
Licensing AuthorityMinnesota Department of Labor and Industry
Current Exam Code2026 National Electrical Code
Exam ReferencesNEC, Laws and Rules Booklet, and calculator provided by DLI
Experience Requirement60 months of qualifying electrical experience
Master-Level ExperiencePlanning, layout, supervision, and installation experience required within the qualifying total
Exam Prep View Minnesota Master exam prep
Minnesota Master Electrician and Contractor Licensing Path
The Class A Master Electrician license is directly connected to Minnesota electrical contractor responsibility.
Total experience: 60 months of qualifying electrical experience under the current DLI experience table.
Planning: minimum two months.
Layout: minimum two months.
Supervision: minimum two months.
Installation: minimum 12 months wiring for and installing electrical wiring, apparatus, and equipment.
Contractor role: an electrical contractor must designate an active Master Electrician as its responsible licensed individual.
What Should You Prioritize for the Minnesota Master Electrician Exam?
These bars show Master-level study priorities, not official DLI exam percentages.
Advanced Load, Service and Feeder CalculationsHighest priority
2026 NEC Navigation and Wiring MethodsHighest priority
Grounding, Bonding and Overcurrent ProtectionHigh priority
Planning, Layout and SupervisionMaster-level focus
Motors, Transformers and EquipmentHigh priority
Special Occupancies and Special SystemsCore topic
Minnesota Laws and Contractor ResponsibilitiesRequired review
Current Minnesota Master Electrician Exam References
DLI supplies the exam references, so personal tabbed books remain study tools rather than exam-room materials.
| Reference | Primary Use | Exam-Day Rule |
|---|---|---|
| 2026 National Electrical Code | Core code questions, advanced calculations, services, grounding, motors, transformers, and special installations | Softcover NEC provided by DLI |
| Minnesota Laws and Rules Booklet | Licensing, supervision, contractor duties, permits, and inspections | Provided by DLI |
| Electronic Calculator | Service, feeder, motor, transformer, voltage-drop, conductor, and fill calculations | Provided by DLI |
| Personal Study Materials | Study, tabs, highlighting, calculations, and practice before test day | Not permitted in the examination building |
Your Minnesota Master Electrician Licensing Roadmap
Confirm Master eligibility, apply through DLI, study the 2026 NEC, sharpen advanced calculations, practice planning and supervision, pass the Class A Master exam, and prepare for contractor responsibility.
1
Confirm Master eligibility
Review the current Master qualification routes and 60-month detailed experience standard.
2
Apply through Minnesota DLI
Submit your Class A Master examination application and required experience documentation.
3
Master 2026 NEC navigation
Build speed with the index, articles, tables, exceptions, and cross-references without depending on personal tabs.
4
Strengthen advanced calculations
Practice services, feeders, loads, conductors, motors, transformers, voltage drop, box fill, and raceway fill.
5
Study planning and supervision
Review system planning, layout, installation supervision, and code-compliance responsibility.
6
Take the Class A Master exam
Complete 80 questions within 5.5 hours and earn at least 70 percent.
7
Prepare for contractor responsibility
Understand the responsible licensed individual, insurance, bonding, business-disclosure, permit, and inspection responsibilities of a Minnesota electrical contractor.
Six-Week Minnesota Master Electrician Exam Prep Plan
Week 1
2026 NEC Navigation
- Definitions and code structure
- Index and article lookup
- Tables and exceptions
- Diagnostic Master exam
Week 2
Services, Feeders and Loads
- Service calculations
- Feeder calculations
- Demand factors
- Branch-circuit requirements
Week 3
Grounding and Protection
- Grounding and bonding
- Overcurrent protection
- Conductor sizing
- Separately derived systems
Week 4
Motors and Transformers
- Motor circuits and controls
- Overloads and protection
- Transformer calculations
- Equipment requirements
Week 5
Master Responsibilities
- Planning and layout
- Supervision
- Minnesota laws and rules
- Contractor responsibilities
Week 6
Full DLI Master Simulation
- 80-question timed exams
- Advanced calculations
- Clean NEC navigation
- Final weak-area review
Minnesota Master Electrician Exam Reference Strategy
Do this during exam prep
- Study directly from the 2026 NEC
- Practice with an unmodified code book
- Build fast article, table, and index navigation
- Memorize advanced calculation workflows
- Review Minnesota laws and contractor rules
- Complete full 5.5-hour-style sessions
Avoid these mistakes
- Depending completely on personal tabs
- Planning to bring personal study guides into the exam
- Studying only Journeyworker-level material
- Skipping Master-level calculations
- Ignoring planning, supervision, and contractor responsibilities
- Practicing only short quizzes
Timing strategy: 80 questions in 5.5 hours averages about 4.1 minutes per question. Reserve additional time for multi-step calculations and difficult code-navigation problems.
Minnesota Master Electrician Exam Prep Options
Instructor-Led Master Exam Prep
Guided 2026 NEC Master Prep
- 2026 NEC study
- Master Electrician Study Guide
- Calculations Study Guide
- Instructor-led NEC course
- Simulated practice exams
Master Study Guide + Flash Card Combo
Practice-Focused Master Exam Prep
- 12 practice exams
- 2 full final exams
- Master Electrician flash cards
- 2026 NEC-focused review
- Minnesota rules and theory
Master + Calculations + 2026 NEC Combo
Advanced Calculation and Code Prep
- Minnesota Master study guide
- Electrician Calculations Study Guide
- 2026 NEC
- Advanced calculation practice
- Master-level code navigation
Master Electrician and Electrical Contractor Are Connected Minnesota Credentials
The Class A Master Electrician license is the advanced personal credential required for the responsible licensed individual of a Minnesota electrical contractor.
· Master exam: 80 questions
· 5.5-hour testing limit
· 70% minimum passing score
· Current exam code: 2026 NEC
· Master experience framework: 60 months
· Master Electrician can serve as contractor responsible licensed individual
Minnesota Master Electrician Contractor Exam Prep FAQ
Minnesota Class A Master Exam Basics
The Minnesota Department of Labor and Industry administers the Class A Master Electrician licensing examination.
The current DLI electrical licensing examination guide lists 80 questions for the Class A Master Electrician examination.
Candidates receive five and one-half hours, or 330 minutes, to complete the examination.
A minimum score of 70 percent is required to pass the examination.
Current Minnesota electrical licensing examinations use the 2026 National Electrical Code.
Minnesota provides the exam references. DLI supplies a softcover NEC, the current Laws and Rules Booklet, and an electronic calculator.
No. Current DLI guidance says personal reference books, study guides, phones, and other electronic devices are not permitted in the examination building.
Study NEC fundamentals, services, feeders, branch circuits, grounding and bonding, protection, conductors, wiring methods, motors, transformers, special occupancies, equipment, advanced calculations, planning, layout, supervision, and Minnesota laws and rules.
Yes. Practice service and feeder calculations, conductor sizing, voltage drop, motors, transformers, box fill, raceway fill, and load calculations.
Master-level preparation should include planning, laying out, and supervising electrical installations, along with code compliance and responsible licensed-person duties.
Minnesota Master Experience and Licensing
The current DLI experience table lists a minimum total of 60 months of qualifying electrical experience.
The current experience table lists a minimum of two months of qualifying planning experience.
The current experience table lists a minimum of two months laying out electrical wiring, apparatus, and equipment.
The current experience table lists a minimum of two months supervising the installation of electrical wiring, apparatus, and equipment.
The current experience table lists at least 12 months wiring for and installing electrical wiring, apparatus, and equipment.
Minnesota licensing guidance lists one year of experience working as a journeyworker electrician as one route to qualify for the Master exam, subject to DLI approval.
Minnesota licensing guidance lists an accredited electrical engineering degree as another Master examination qualification route, subject to DLI review.
The current DLI examination guide says an applicant may submit another exam application 30 days after notification of the failed examination.
Minnesota Electrical Contractor Responsibilities
A Minnesota electrical contractor must designate a responsible licensed individual who holds an active Master Electrician license and is responsible for the company's electrical work.
No. Current DLI contractor guidance says the responsible licensed individual may not act as the responsible licensed individual for another electrical contractor or employer.
Current DLI contractor requirements include liability insurance, workers' compensation compliance, a surety bond, business ownership or officer disclosures, and the contractor-license application.
The contractor must notify DLI and follow the current process for designating a new responsible Class A Master Electrician.
DLI supplies the exam-room NEC, so candidates should be able to navigate articles, tables, notes, and exceptions without depending on personal tabs.
Start with 2026 NEC navigation, services and feeders, grounding and bonding, overcurrent protection, advanced calculations, motors, transformers, planning, supervision, and Minnesota laws and contractor rules.
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Minnesota Instructor-Led Master Exam Prep Minnesota Master Flash Card Combo Minnesota Master Study Guide + 2026 NEC Combo Minnesota Master Calculations + NEC Combo Minnesota Electrical Licensing Examination Guide Minnesota Electrical Codes and Standards Minnesota Electrical Licensing Basics Minnesota Master Experience Requirements Minnesota Electrical Exam Schedule Minnesota Electrical Contractor Licensing Basics Minnesota Responsible Licensed Individual Changes Contact 1 Exam Prep
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