Connecticut E-1 Electrical Contractor
Practice the Connecticut E-1 Electrical Contractor exam the way it is given — 100 questions weighted like the real outline, on the 2020 NEC, with every answer explained and cited.
One exam, 100 questions
You need 70% (70 of 100) on the trade exam. These are the question counts in PSI’s bulletin; PSI adds 1 to 10 unscored questions, and their time counts against yours. Contractors must also pass PSI’s separate 50-question Business and Law exam (2 hours, 70%), open book on the NASCLA Connecticut guide. This product covers the trade exam; our Business and Law prep is coming. Our full-length practice exam draws from each trade area in the same proportions.
E-1 Unlimited Electrical Contractor trade exam
100 scored · 240 min- General Electrical Knowledge6
- Service, Feeders, and Branch Circuits10
- Grounding and Bonding7
- Conductors and Cables10
- Raceways and Boxes8
- Special Occupancies and Equipment9
- Electrical Power6
- Motors6
- Low Voltage2
- Lighting3
- Illuminated Signs2
- Fire Detection and Alarm Systems5
- Safety Information6
- Overcurrent Protection6
- High Voltage4
- Photovoltaics10
About the Connecticut E-1 Electrical Contractor
Granted by Connecticut Department of Consumer Protection (Electrical Work Examining Board)
Connecticut E-1 Unlimited Electrical Contractor trade exam (PSI): 100 open-book questions in 4 hours, 70% to pass. Questions follow the 2020 NEC; PSI also accepts the 2023 NEC. Contractors also take PSI's 50-question Business and Law exam.
Eligibility Requirements
Two years as a licensed unlimited journeyperson (E-2), or six years of equivalent experience and training: 12,000 hours on the job (8,000 as an apprentice plus 4,000 licensed) and 720 classroom hours, proven with notarized employer letters.
2020 or 2023 NEC: either is allowed
PSI lets you bring the 2020 or the 2023 NEC to Connecticut’s exam, and Connecticut’s own code is still the 2020 edition. Every question here cites the 2020 section; where the 2023 edition moved a rule, know where it went in the book you bring.
| Topic | 2023 NEC (also allowed) | 2020 NEC |
|---|---|---|
| Dwelling general lighting load (3 VA per ft² in both)220.14(J) | 220.41 | 220.14(J) |
| Non-dwelling general lighting unit loads220.12 | Table 220.42(A) | Table 220.12 |
| Lighting load demand factors220.42 | Table 220.45 | Table 220.42 |
| Non-dwelling receptacle demand factors220.44 | Table 220.47 | Table 220.44 |
| EV charging load in a load calculationArticle 220 | 7,200 VA or the nameplate (220.57) | No such rule |
| Class 1 remote-control and signaling circuitsArticle 725 | Articles 722 and 724 | Article 725 |
What's Included
Every plan gets the same full-access study library.
Scheduling & Fees
Where to take it
- Administered by
- PSI
- Phone
- (855) 746-8171
- Reschedule policy
- Free to cancel or reschedule if you do it at least two days before the exam; otherwise the $59 fee is lost.
- Retake policy
- You need 70% on the trade exam and on Business and Law. Once the state approves you, you have one year to start testing, with no limit on attempts; a passed portion stays valid for two years. PSI charges $59 for each attempt at each portion, and you cannot rebook the same day.
Fees
- Application fee (DCP, nonrefundable)
- $150
- E-1 trade exam fee, each attempt (PSI)
- $59
- Business and Law exam fee, each attempt (PSI)
- $59
- License fee, initial and each yearly renewal
- $150
Keeping Your Certification Active
Renewal requirements
- Cycle
- Every year ($150)
- Continuing education
- Four hours of continuing education each year, done by June 30, in person or in live online classes approved by the board. None is required for your first renewal.
Reciprocity
Connecticut may license holders of substantially similar or higher licenses from states that reciprocate, but publishes no list of those states. An out-of-state license counts toward eligibility only if it required the same 720 classroom and 12,000 on-the-job hours.
Sources: PSI Candidate Information Bulletin, Connecticut Electrical Trades (updated 2/4/2026) · Connecticut DCP: electrical license types and scope of work · Connecticut DCP: electrical contractor equivalent experience and training · Conn. Gen. Stat. chapter 393, electricians · Connecticut DCP: electrician continuing education
Frequently asked questions
How is the Connecticut E-1 exam structured?+
Two PSI exams. The E-1 trade exam is 100 scored questions in 4 hours, open book, and you need 70% (70 correct). Services, feeders and branch circuits, conductors and cables, and photovoltaics are the largest areas (10 each), then special occupancies (9). Every contractor also takes the Business and Law exam: 50 questions in 2 hours, 70% to pass, open book on the NASCLA Contractors Guide to Business, Law and Project Management, Connecticut 6th edition.
Does this cover the Business and Law exam?+
Not yet. This product prepares you for the E-1 trade exam on the NEC. You still need to pass Business and Law to get the license, and our Business and Law prep is coming. A passed portion stays valid for two years, so you can pass one exam and then take the other later.
What do I need before I can sit the exam?+
Two years as a licensed unlimited journeyperson (E-2), or six years of equivalent experience and training: 12,000 hours on the job (8,000 as an apprentice plus 4,000 licensed) and 720 classroom hours, proven with notarized employer letters. You apply to the Department of Consumer Protection ($150), and once approved you have one year to start testing, with no limit on attempts.
Which code edition is the exam on?+
PSI allows the 2020 or the 2023 NEC, or either NEC Handbook. Connecticut’s building code still adopts the 2020 NEC: the update to the 2023 NEC was due July 1, 2026, but the legislature’s regulation review committee rejected it in December 2025 and again in April 2026. The 2026 NEC is not on the exam.
Is it open book? What can I bring?+
Yes. You bring your own references: the 2020 or 2023 NEC, OSHA’s construction standards (29 CFR 1926), Ugly’s Electrical References, NFPA 72 (2013), Dunlop’s Photovoltaic Systems, the 2012 National Electrical Safety Code and Convert Your Home to Solar Energy. Highlighting, underlining, margin notes and permanent tabs are allowed; sticky notes are not, and questions and answers written into a book are prohibited. A silent, non-programmable calculator is allowed.
What is the pass rate?+
Connecticut does not publish it. At its September 2024 meeting the Electrical Work Examining Board noted that the data showed more candidates failing than passing.
Can I take the exam online?+
No. PSI gives it at test centers: West Hartford and Milford in Connecticut, four Massachusetts sites, or any other PSI center in the country.
What happens if I fail?+
You see your score on screen, get a report of your weak areas, and can spend 30 minutes reviewing the questions you missed. You cannot rebook the same day, but you can retest as soon as two days later, as many times as you need within your one-year eligibility.
What does it cost?+
A $150 application fee to the Department of Consumer Protection, $59 to PSI for each attempt at the trade exam and $59 for each attempt at Business and Law, and a $150 license fee after you pass.
How often do I renew?+
Every year, for $150. You need 4 hours of continuing education each year, done by June 30, in person or in live online classes approved by the board; none is required for your first renewal.
Ready to pass your exam?
Practice the full exam on the current code, with every calculation worked out.
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