- What You Are Actually Preparing For
- Exam Format and Registration Mechanics
- Domain 1: Advanced Mechanical and Electrified Hardware Product
- Domain 2: Code Application and Electronic Access Control
- Domain 3: Fire, Life Safety, Accessibility, and Building Codes
- Domain 4: Architectural Door Openings and Security Needs
- Using the DHI Course Sequence as Your Backbone
- A Domain-Ordered Study Sequence
- Preparing for Short-Answer and Long-Answer Questions
- Proctor Logistics and Delivery Caveats
- After You Pass: Renewal and Career Context
- Frequently Asked Questions
- EHC is the Electrified Hardware Consultant credential from the Door and Hardware Institute (DHI), tested across four published competency areas.
- The full exam is eight hours, paper and pencil, mixing short-answer, long-answer, and multiple-choice sections.
- Exam fee is USD 550 for DHI members, USD 850 for nonmembers, with a USD 300 retake fee.
- No prerequisites apply, but DHI recommends courses EHC403, EHC413, and EHC423 as preparation.
What You Are Actually Preparing For
The Electrified Hardware Consultant credential is issued by the Door and Hardware Institute and sits at the specialist end of the door hardware profession. It is not a general electronics certification and it is not an IT security credential. It tests whether you can specify, coordinate, and troubleshoot electrified hardware on real door openings: electric strikes, electromagnetic locks, electrified locksets, power supplies, wiring, and the access control systems that command them.
If you are new to the credential, start with what EHC certification is and what EHC stands for, then come back here. This guide assumes you have decided to sit for the exam and want a plan built around how DHI actually structures it.
One point shapes everything that follows: DHI publishes four competency statements but no percentage weights. That means you cannot rationally skip a domain because it "only counts for a small share." Plan for balanced competence, and use the fuller breakdown in the EHC exam domains guide to go deeper on each area.
Exam Format and Registration Mechanics
DHI describes the full examination as an eight-hour, paper-and-pencil event with three question styles: short-answer, long-answer, and multiple-choice. That mix matters for preparation. Recognizing the right answer from a list is a different skill from writing out a coordinated hardware solution under time pressure.
| Item | What DHI Publishes |
|---|---|
| Issuing body | Door and Hardware Institute (DHI) |
| Full exam length | Eight hours, paper and pencil |
| Question types | Short-answer, long-answer, multiple-choice |
| Exam fee | USD 550 (members) / USD 850 (nonmembers) |
| Retake fee | USD 300 |
| Prerequisites | None required to apply |
| Recommended courses | EHC403, EHC413, EHC423 |
| Renewal | 30 CEP points every three years, at least 24 technical |
Note what is not on that table. I could not verify a current question count, a timer for the multiple-choice portion alone, a passing score, or a published pass rate. Be wary of any source that quotes a precise passing percentage or pass rate as settled fact. The EHC passing score and EHC pass rate articles explain what is and is not publicly documented. For the full fee picture, including membership tradeoffs, see the EHC certification cost breakdown.
Domain 1: Advanced Mechanical and Electrified Hardware Product
Advanced mechanical and electrified hardware product
This is the product-knowledge domain. You need to know what each class of electrified hardware does, how it fails, and when it is the wrong choice for an opening.
- Electric strikes versus electromagnetic locks versus electrified locksets and exit devices, including fail-safe versus fail-secure behavior
- Power transfer methods: electric hinges, electrified pivots, door cords, and wireless or inductive options
- Power supplies, voltage and current considerations, and how wiring runs relate to hardware selection
- Door position switches, request-to-exit devices, and other monitoring components
- How advanced mechanical hardware (closers, exit devices, locksets) interacts with electrified components
The trap in this domain is treating product knowledge as memorization of catalog descriptions. The exam is written for consultants, so expect scenarios: a given door, a given requirement, and a need to choose and justify hardware. Practice by taking a single opening and asking what changes if the fail mode flips, if the door gets heavier, or if the frame is hollow metal versus wood.
Domain 2: Code Application and Electronic Access Control
Code application knowledge with an understanding of electronic access control systems
This domain joins two things candidates often study separately: the code requirements that govern electrified openings and the access control systems that drive them.
- How access control components (readers, controllers, credentials, power, and interface hardware) connect to door hardware
- Low-voltage circuitry fundamentals: reading a wiring diagram, tracing a circuit, and spotting an error in it
- Integration points between the hardware specifier's scope and the security integrator's scope
- Troubleshooting logic: isolating whether a failure is mechanical, electrical, or system-level
DHI's own course catalog lists access-control integration, low-voltage circuitry, and troubleshooting among its published preparation topics. These are unweighted preparation themes, not an official blueprint, but they show where the institute expects candidates to be fluent. If wiring diagrams make you hesitate, give this domain extra time. The difficulty discussion in how hard the EHC exam is explains why candidates from a purely mechanical background often find this the steepest climb.
Domain 3: Fire, Life Safety, Accessibility, and Building Codes
Understanding fire, life safety, accessibility, and building code requirements
Electrified hardware does not get a pass on life safety. This domain checks that you know how electrification interacts with egress, fire protection, and accessibility.
- Means of egress: how electrified locking can and cannot affect free exit
- Fire-rated openings and what electrified hardware must satisfy to remain compliant on them
- Fire alarm interface: when and how locks release on alarm signals
- Accessibility requirements that touch operating hardware, readers, and push-button operators
- Reading and applying model building code language to a specific opening
Domain 4: Architectural Door Openings and Security Needs
Understanding of architectural door openings and security needs
The final domain moves from components to the whole opening and the building's purpose.
- Door and frame types and how they affect electrified hardware preparation and installation
- Matching hardware choices to security level and operational need, such as a school, hospital, or office
- Shop-drawing review and the coordination between hardware, doors, frames, and electrical trades
- Specification writing: stating requirements clearly enough that a contractor can price and install correctly
This is where the consultant role becomes concrete. Shop-drawing exercises and specification writing appear in DHI's published course content, which is a strong hint that you should practice producing written, coordinated answers, not only selecting them.
Using the DHI Course Sequence as Your Backbone
No prerequisites are required to apply, so courses are optional. But DHI recommends EHC403, EHC413, and EHC423, and its catalog also lists EHC490. Together, the published course content covers electrified hardware drawings, access-control integration, low-voltage circuitry, troubleshooting, shop-drawing exercises, and specification writing.
Treat the courses as a structured curriculum rather than as proof of exam content. Course hours, tuition, software exercises, and required materials do not establish exam timing, fees, or permitted resources. If a course instructor tells you what you may bring into the exam room, verify it with DHI before test day.
Not everyone has the budget or schedule for the full sequence. Candidates with years of field experience in electrified hardware may reasonably take fewer courses; candidates new to access control should lean toward all three recommended ones. Read the EHC requirements and EHC training pages to weigh your options, and judge the investment alongside the ROI analysis.
A Domain-Ordered Study Sequence
Generic schedules fail because they ignore dependency. Domain 3 (life safety) makes little sense until you understand the hardware it governs, and Domain 2 (access control) leans on product knowledge from Domain 1. Order your weeks accordingly.
Domain 1: Product Foundations
- Build a comparison chart of strikes, mag locks, electrified locksets, and exit devices by fail mode and typical use
- Study power transfer options and power supply basics
- Sketch each product type on a sample opening
Domain 2: Access Control and Circuitry
- Practice reading and drawing low-voltage wiring diagrams until tracing a circuit feels routine
- Map how reader, controller, power supply, and lock connect on a single door
- Work troubleshooting scenarios: decide whether each fault is mechanical, electrical, or system-level
Domain 3: Life Safety and Codes
- Study egress and fire-rated opening requirements as they apply to electrified hardware
- Work through fire alarm release logic on example openings
- Review accessibility requirements for operating hardware
Domain 4 and Integration
- Practice shop-drawing review and short specification writing
- Run full-opening scenarios that blend all four domains
- Take timed practice sets, including written answers, and review every miss
Spaced review fits naturally here: revisit each earlier domain briefly in later weeks, since the exam will blend them. Stretch the plan if your starting point is mechanical-only; compress it if you already work with access control daily. A one-page review sheet, like the one in the EHC cheat sheet, helps in the final days. When you want realistic question practice, use the EHC practice tests to find the gaps your reading missed.
Preparing for Short-Answer and Long-Answer Questions
Most certification exams are multiple-choice only, so the written components are what set EHC preparation apart. You cannot cram written answers the way you can cram definitions.
Short answers
- Practice stating a specific fact or requirement in one or two precise sentences
- Name the hardware item, the condition, and the reason, not just the item
- Drill the vocabulary until you can write it correctly without prompts, since spelling and terminology count on paper
Long answers
- Practice organizing a response: restate the opening's requirements, select hardware, address code and life safety, then note coordination issues
- Write at least a few full responses by hand, timed, because the exam is paper and pencil
- Have a knowledgeable colleague critique your reasoning, since self-grading hides gaps in judgment
Key Takeaway
Because the exam is paper and pencil across eight hours, build handwriting stamina and a written problem-solving routine. Candidates who only practice clicking answers on a screen are underprepared for the long-answer sections.
Proctor Logistics and Delivery Caveats
This is the part of the process that catches candidates off guard, so start early. DHI's EHC page describes a paper examination, and candidates arrange their own EHC-certified proctor. DHI's Certification Policies state that the proctor must hold the same certification and may not be a family member or someone employed by the same company, division, or branch. Staff proctoring at National and Micro Schools is the stated exception.
In practical terms, finding a qualified proctor can take weeks. Reach out to EHC-certified colleagues outside your employer, through chapters, courses, or professional contacts, well before your target date.
For scheduling windows and deadlines, see the EHC exam dates guide, and verify every date directly with DHI.
After You Pass: Renewal and Career Context
The credential is not permanent. Renewal requires 30 continuing education program (CEP) points every three years, including at least 24 technical points. Renewing one credential costs USD 175 for members or USD 210 for nonmembers. Keep a running log of qualifying activity from the start so renewal is administrative rather than a scramble.
On the career side, the credential is aimed at professionals who specify or support electrified hardware: hardware consultants, distributors, manufacturers' representatives, and others who work between architects, contractors, and security integrators. For openings and typical roles, see the EHC jobs overview, and for earnings context, the EHC salary guide. This guide does not quote salary figures, since no verified number belongs in a study plan.
Frequently Asked Questions
DHI describes the full examination as eight hours, paper and pencil, with short-answer, long-answer, and multiple-choice sections. A separate timer for the multiple-choice portion alone was not verified, so confirm it with DHI when scheduling.
The exam fee is USD 550 for DHI members and USD 850 for nonmembers. A retake costs USD 300. See the certification cost breakdown for the full picture, including renewal.
No. There are no prerequisites to apply. DHI does recommend EHC403, EHC413, and EHC423 as preparation, which is worth serious consideration if access control and low-voltage work are new to you.
DHI's Certification Policies require the proctor to hold the same certification. The proctor cannot be a family member or someone employed by the same company, division, or branch, with staff proctoring at National and Micro Schools as the stated exception.
No current passing score or pass-rate statistic was verified, so any specific figure you encounter elsewhere should be treated with caution. Check the passing score article and confirm directly with DHI.
Passing on the first attempt comes down to three habits: study the four domains in dependency order, practice written answers by hand, and settle proctor and delivery logistics before you commit to a date. Reinforce each domain with targeted question practice on the main practice test site, and keep this plan alongside the EHC study guide as your reference through exam day.