- What These 15 Content Areas Are (and Aren't)
- Silver vs. Gold: How Domains Map to Each Level
- Cluster 1: The Motor and Its Voltage Configuration
- Cluster 2: Starters, Relays and Timers
- Cluster 3: Operator and Sensing Devices
- Cluster 4: Safety Rules and Ground Checks
- Cluster 5: Diagrams and Application Circuits
- Sequencing the Domains in a Study Plan
- Registration, Eligibility and Cost Mechanics
- Where This Credential Fits in the Workplace
- Frequently Asked Questions
- C-202 means Electric Motor Control Systems 1, administered by the Smart Automation Certification Alliance (SACA).
- The 15 domains here are unweighted preparation topics, not an official blueprint or verified percentage breakdown.
- Silver is a proctored online written assessment; Gold adds a hands-on performance assessment on SACA-approved equipment.
- Reading ladder logic and reversing starters with overloads tie together most of the other domains.
What These 15 Content Areas Are (and Aren't)
If you are preparing for the SACA C-202 exam, the first thing to understand is how the topic list was assembled. The fifteen areas in this guide come from the competency summary SACA publishes for Electric Motor Control Systems 1 in its micro-credential descriptions. They are preserved here in source order, using the issuer's own component and skill phrases.
That summary is abbreviated. It is not a formally numbered list of exam objectives, and no official percentage weights have been verified for any topic. "Fifteen" is simply the number of topics supplied, not an official domain count declared by SACA. Treat this guide as a map of what to study, not a promise about how many questions each area will produce. The exact question count, written time limit and pass mark were also not verified, so you should confirm them at registration. For more on scoring questions, see our C-202 passing score guide.
Supporting detail comes from dated provider curriculum, including a TRC-6 industrial maintenance standards summary and MIC Institute of Technology's six-page C-202 course credential. Those documents reproduce 12 standards covering safety, grounding, ladder diagrams, three-phase motors, manual starters, control transformers, basic control circuits, two- and three-wire starters, reversing circuits, hand-off-auto control, automatic inputs and timers. They are useful for depth but do not replace the issuer topic list. For the bigger picture, our overview of what C-202 certification is covers the basics.
Silver vs. Gold: How Domains Map to Each Level
SACA structures this credential in two tiers, and your preparation should differ for each. Silver requires a proctored online written knowledge assessment taken through the SACA testing portal. Gold requires Silver first, then a hands-on performance assessment on SACA-approved equipment, with skills verified by a qualified proctor.
| Aspect | Silver | Gold |
|---|---|---|
| Format | Proctored online written knowledge assessment | Hands-on performance assessment on SACA-approved equipment |
| Prerequisite | Eligibility through a SACA member organization | Silver plus the practical assessment |
| Domains emphasized | Terminology, device function, ladder logic reading, safety rules, voltage configurations | Wiring, ground checks, starter and reversing circuit construction, device connection |
| Preparation style | Diagram interpretation and concept review | Bench practice and wiring repetition |
| CPI listed price | $139 per Silver test | $175 per C-202 Gold test |
Preserve this distinction when you plan. Knowing that a reversing starter needs interlocking is Silver knowledge; wiring one correctly on the bench while observing safety rules is Gold performance. The same fifteen topics serve both, but the depth of hands-on fluency required is very different. Our difficulty guide explores how candidates experience each level.
Cluster 1: The Motor and Its Voltage Configuration
Two of the fifteen areas deal directly with the motor itself. Together they form the electrical foundation everything else controls.
Domain 1: 3-phase AC motors
Candidates should understand how three-phase induction motors are constructed, how their windings connect to the supply, and why reversing rotation is accomplished by swapping two of the three line leads.
- Terminal markings and lead numbering conventions on nameplates
- Reading nameplate data such as voltage ratings and full-load amps
- Relationship between supply phase sequence and direction of rotation
Domain 14: wiring motors for high and low voltage
Dual-voltage motors can be reconnected for a higher or lower supply by regrouping their windings in series or parallel. Expect to interpret a nameplate connection diagram and decide how leads should be joined.
- Series versus parallel winding groupings and the voltage each supports
- Matching the connection to the available supply before energizing
- Recognizing that a wrong configuration can damage the motor
These two topics reward careful, methodical thinking. On a written Silver question, you might be shown a lead-connection table and asked which terminals to join for a given voltage. On a Gold practical, you would physically make those connections. Our full C-202 study guide pairs well with this section for a step-by-step approach.
Cluster 2: Starters, Relays and Timers
The next group covers the switching and logic hardware that sits between the operator and the motor.
Domain 2: reversing magnetic motor starters with overloads
This is arguably the centerpiece of the credential. A reversing starter uses two contactors, one for each direction, with the overload protection shared in the circuit. The critical concept is preventing both contactors from closing at once, which would short two phases together.
- Mechanical and electrical interlocking between forward and reverse contactors
- Where overload relays sit in the power circuit and how their contacts act in the control circuit
- How the power circuit and control circuit relate on the same diagram
Domain 3: drum switches
Drum switches provide manual reversing and control, often in smaller motor applications. Understand how contact positions correspond to forward, off and reverse, and how they compare with magnetic reversing starters.
Domain 4: control relays
Control relays multiply and isolate signals. Know coil versus contact behavior, normally open and normally closed states, and how relays are used to build logic.
Domain 5: timer relays
Timer relays introduce time-based behavior. Distinguish on-delay from off-delay operation and recognize timed versus instantaneous contacts on a diagram.
- On-delay: contacts change state after the preset time following energization
- Off-delay: contacts change state after the preset time following de-energization
- Typical uses such as sequencing starts or delaying a shutdown
Cluster 3: Operator and Sensing Devices
Five of the fifteen topics are input devices. They are individually simple, but the exam expects you to recognize them by symbol and describe how they behave in a circuit.
Operator-actuated switches
- Domain 6, pushbutton switches: momentary contacts, normally open start buttons versus normally closed stop buttons, and why stop buttons are wired as normally closed.
- Domain 7, selector switches: maintained-position switches with two or three positions, used for functions such as hand-off-auto selection.
Process- and machine-actuated switches
- Domain 8, limit switches: mechanically actuated by machine position, often used to stop travel or signal an end condition.
- Domain 9, pressure switches: contacts that change state at a set pressure, common in compressor and pump applications.
- Domain 10, float switches: contacts actuated by liquid level, used for tank filling and draining control.
A useful way to organize these is by what triggers them: a person (pushbuttons and selectors), a moving machine part (limit switches), or a process condition (pressure and float switches). When you see a device symbol in a ladder rung, ask what physical event changes its contacts. That habit makes the application circuits at the end of the list much easier to read. For a compact refresher on symbols and states, see the C-202 cheat sheet.
Cluster 4: Safety Rules and Ground Checks
Domain 11: adhering to motor control safety rules
Safety is both a knowledge topic and, at Gold level, an observed behavior. The proctor verifying your skills is watching how you work, not just whether the circuit functions.
- De-energizing and verifying a dead circuit before working on it
- Lockout and tagout practices and proper use of test instruments
- Using appropriate protective equipment for the task
Domain 13: checking for proper ground connections
Grounding protects people and equipment. Candidates should know why motor frames and enclosures are bonded to ground and how to verify continuity of the grounding path.
- Purpose of equipment grounding in a motor circuit
- Continuity checking with a meter
- Recognizing a missing or loose ground as a safety defect
Key Takeaway
Treat safety and grounding as habits to rehearse, not facts to memorize. On the Gold performance assessment, a technically working circuit can still reflect poorly if safe procedure was skipped, so practice the verification steps every time you wire a practice circuit.
Cluster 5: Diagrams and Application Circuits
The final two topics are where the other thirteen come together.
Domain 12: reading ladder logic circuit diagrams
Motor control ladder logic is drawn with two vertical power rails and horizontal rungs, with inputs on the left and loads such as coils or pilot lights on the right. Candidates must trace current paths, identify each device from its symbol, and predict what happens when a device changes state.
- Following a rung left to right and determining whether the output energizes
- Recognizing seal-in (holding) contacts that keep a coil energized after a start button is released
- Distinguishing the control circuit from the power circuit
Domain 15: interpreting common motor control application circuits
This area asks you to recognize standard circuits and explain how they operate. The dated provider curriculum points toward familiar patterns such as two-wire and three-wire control, reversing circuits, hand-off-auto control, and circuits using automatic inputs and timers, powered through control transformers.
- Two-wire versus three-wire control and the difference in restart behavior after a power loss
- Forward-reverse circuits with interlocks
- Hand-off-auto selection feeding automatic devices such as pressure, float or timer contacts
Because these circuits combine devices, a question on one application circuit can quietly test pushbuttons, relays, overloads and timers simultaneously. That is why reading ladder logic is the single most transferable skill across the credential. Our domains guide and the main practice test site are good places to rehearse tracing these diagrams under realistic conditions.
Sequencing the Domains in a Study Plan
You do not need a generic study method here; you need an order that respects how these topics depend on each other. Build from the motor outward, then from devices to diagrams.
Safety, grounding and the motor
- Domains 11 and 13: safe procedure and ground continuity checks
- Domain 1: three-phase motor basics and lead markings
Voltage configuration and input devices
- Domain 14: high and low voltage connections
- Domains 6 through 10: pushbuttons, selectors, limit, pressure and float switches
Relays, timers and starters
- Domains 4 and 5: control relays and timer relays
- Domains 2 and 3: reversing magnetic starters with overloads and drum switches
Diagrams and application circuits
- Domain 12: ladder logic tracing practice
- Domain 15: full application circuits, then timed practice questions
This ordering puts safety first, which mirrors how you will be expected to work, and saves the integrative domains for last when you can draw on everything before them. Candidates aiming for Gold should add bench time during weeks three and four so wiring becomes automatic.
Registration, Eligibility and Cost Mechanics
Eligibility runs through SACA membership. Candidates must be employees or students of a SACA member organization, and no particular preparation course is required. You can read the details in our requirements guide.
On cost, be careful to distinguish provider prices from universal fees. CPI publishes local prices of $139 per Silver test and $175 per C-202 Gold test. These are provider-specific assessment prices, not universal SACA fees or tuition. Separately, SACA education membership includes unlimited certifications for enrolled students, and industry membership includes employee certifications without additional certification fees. Institutional membership charges are not individual exam or renewal fees. Individual renewal rules were not verified. Our certification cost breakdown and exam dates guide explain how to confirm what applies to you.
Also note that SACA states it reviews its credentials annually, but this does not identify a dated C-202 exam revision. Any "2026" label you see on study material, including this article, is an editorial date rather than an official version marker.
Where This Credential Fits in the Workplace
Electric Motor Control Systems 1 targets people who install, troubleshoot and maintain motor-driven equipment, which is why the topic list centers on starters, relays, switches and diagrams. Industrial maintenance, manufacturing, water and wastewater, and facilities teams all rely on these skills daily. Because eligibility is tied to member organizations, many candidates earn it through their employer or their school's program.
We have deliberately avoided quoting salary figures or hiring statistics, since none were verified for this credential. For a qualitative look at roles and value, read our C-202 jobs overview and the worth-it analysis.
Frequently Asked Questions
No. They are unweighted preparation topics drawn from an abbreviated issuer competency summary. Fifteen is the supplied-topic count, not an official domain count, and no percentage weights have been verified.
Silver is a proctored online written knowledge assessment through the SACA testing portal. Gold requires Silver plus a hands-on performance assessment on SACA-approved equipment, with skills verified by a qualified proctor.
Start with safety and grounding, then invest heavily in reversing magnetic motor starters with overloads and in reading ladder logic circuit diagrams, since those two connect most of the other topics.
CPI lists $139 per Silver test and $175 per C-202 Gold test, but those are provider-specific prices. Education and industry SACA memberships can cover certification fees, so check with your school or employer first.
No particular preparation course is required. You do need to be an employee or student of a SACA member organization to qualify.