How to Build an Electrical-Product Market Compatibility Matrix

01

What columns should the compatibility matrix contain?

The matrix should make technical evidence, package contents and creative permission visible in the same row. A useful row contains enough detail for a reviewer to determine what is being sold, why it is considered compatible and what the ad may show.

Include these columns: market; supplier SKU, model and revision; sample date and lot or batch; local socket system; nominal mains voltage and frequency; product or power-supply input rating; supported frequency; protection method; included plug; adapter or conversion plug; power-supply output; connector and polarity; charging protocol; local compliance evidence; evidence links; owner; review date; creative status; required localized shots; and approved claim language.

Record the country rather than relying on a regional label. IEC TR 60083 describes nationally standardized household plugs and socket outlets, demonstrating why a broad region is not a sufficiently precise compatibility specification. Where a country has mixed or unusual systems, confirm the intended configuration with the relevant national authority or qualified compliance professional.

Do not use a lettered plug type as the entire technical record. The row should identify the verified supplier specification or applicable national plug standard, plus the electrical ratings and protection method. The matrix is an approval control, not a substitute for product-safety testing or market authorization.

02

How do you collect evidence from the retail package?

Order the exact production SKU that customers in the target market will receive. The evidence pack should show the complete path from the wall socket to the powered product and distinguish included components from optional accessories.

Supplier catalog images, engineering samples and generic demonstration videos are insufficient if the production package can contain a different plug, cable or power supply. The U.S. Consumer Product Safety Commission’s general-use-product guidance explains that applicable certification must be based on testing of each product or a reasonable testing program. It also addresses additional certification considerations after material changes. Your legal obligations vary by product and market, but the operational lesson is straightforward: evidence must correspond to what is actually supplied.

Create a new matrix version when a supplier changes the model number, factory, power supply, plug, cable, enclosure or other safety-relevant configuration. Put an expiry or recheck date on each row so old package evidence does not silently approve a new variant.

1. Photograph the outer carton, SKU barcode, model number and revision.
2. Photograph the product rating plate and all compliance markings in focus.
3. Capture the plug from the front, side and pin end, including any earth contact.
4. Capture the power supply’s complete input and output label.
5. Lay out every included cable, adapter, battery and accessory in one box-contents shot.
6. Record an unboxing video without substituting components.
7. Link declarations, certificates or reports to the exact model and supplied power component.
8. Record who reviewed the evidence and when.

03

How should voltage and frequency be checked?

Transcribe the printed input rating exactly and evaluate voltage and frequency as separate gates. Never infer electrical compatibility merely because the plug enters the socket.

For example, a genuine 100–240 V~ 50/60 Hz input marking may cover the major nominal mains ranges, subject to grounding, plug, power-supply, product-safety and market-compliance checks. A 220–240 V~ 50 Hz product does not support a 120 V/60 Hz market. Likewise, a 120 V~ 60 Hz product should not be approved for a 230 V/50 Hz market because a travel adapter makes its plug fit.

A plug adapter provides a mechanical interface; voltage conversion requires appropriately specified conversion equipment. Frequency is another independent characteristic. Do not assume 50/60 Hz support from a broad voltage range unless the product or power-supply marking and its supporting technical evidence say so.

Escalate products with mains-driven motors, pumps, fans, transformers, timers or heating controls for qualified technical review. The matrix should record “unsupported” or “unverified” rather than letting a creative operator make an engineering inference.

04

How do you verify grounding and polarity?

Identify the product’s protection method, then verify that the entire supplied connection preserves it. Treat polarity as another recorded characteristic wherever the plug, DC connector or product is polarity-sensitive.

IEC material distinguishes Class I equipment, which uses basic insulation with protective earthing, from Class II equipment, which uses additional insulation measures rather than protective earth. Do not assign a class by appearance. Obtain the rating plate, symbols and model-matched technical documentation, then have uncertain cases reviewed by a competent specialist.

For equipment requiring protective earth, inspect the complete chain: wall socket → local plug or conversion plug → cable → power supply or product chassis. A two-pin adapter must not be used to present an earthed product as compatible. OSHA’s electrical guidance explains that equipment grounding provides a path for fault current, while approved double-insulated tools may not require a grounding conductor.

Record AC-plug polarization and DC-connector polarity when relevant. Never infer polarity from connector shape or an unverified supplier photograph. A physically matching barrel connector with the wrong polarity can still be electrically incompatible.

05

How do you check the included power supply and USB-C claims?

Treat an external power supply as a distinct product component. Its wall-side input, device-side output, connector, cable and charging protocol must all match the advertised retail configuration.

Record whether the output is AC or DC, its voltage, available current or wattage, connector dimensions, and polarity. For USB-powered products, record the required charging protocol and supported power profile as well as the connector type. Health Canada advises checking charger voltage and current compatibility and states that charger output voltage must match device input voltage.

Do not approve “USB-C compatible” as though it proves charging compatibility. USB-IF’s packaging and language guidance states that USB Type-C is not synonymous with USB Power Delivery and that power capabilities vary among products. Cable capabilities also vary. Confirm the required charger, cable rating and negotiated power profile instead of relying on connector appearance.

If no wall power supply is included, the ad and product page should say so prominently and specify what the buyer needs. Use language such as “Wall charger not included; requires [verified output and protocol].” FTC small-business advertising guidance says qualifications should be clear, conspicuous and close to the claim they qualify.

06

When is an adapter acceptable?

Approve an adapter only when it is suitable for the target market, properly rated for the product, preserves any required protective earth and is actually included in the advertised package. An adapter cannot cure unsupported voltage or frequency.

For each adapter, record its voltage, current or power rating, earth continuity, applicable markings and whether it is included or customer-supplied. Do not show an adapter in the creative if buyers will not receive it. Do not describe a loose travel adapter as a complete local power solution without product-specific technical and compliance review.

Market rules can be more specific than plug shape. For example, Great Britain’s Electrical Equipment (Safety) Regulations address equipment fitted with non-UK plugs and compatible conversion plugs. Obtain qualified advice for the actual product and supply arrangement rather than assuming that any shape-changing adapter is acceptable.

If the supplier cannot control which adapter ships, place the row on hold or block it. The creative team should not solve an uncontrolled package configuration through disclaimers.

07

What do approve, hold and block mean for creative?

The row’s status should control whether localization can begin and what the resulting ad must show. Technical uncertainty should stop production rather than becoming an ambiguous creative note.

Approve when the actual package has a verified local plug or acceptable conversion solution, electrical ratings match, grounding is preserved, the supplied power component is correct and required local compliance evidence is complete. Require shots of the exact plug, readable power-supply label, complete box contents and the product operating only with included components.

Approve with qualification only for a genuine and supportable limitation, such as a product intentionally sold without a wall charger. Put the qualification beside the compatibility claim in the ad and product page. Specify the required charger output, protocol and cable rather than saying only “adapter required.”

Hold when production-package photos, model-matched documents or component identity are missing. Block when the plug does not fit, voltage or frequency is unsupported, an adapter defeats grounding, the power-supply output or charging profile is wrong, shown accessories are absent, required compliance evidence is missing, or supplier variants cannot be controlled.

FTC policy states that advertisers should have a reasonable basis for express and implied objective claims before dissemination. Therefore, “works in Canada,” “EU compatible” or a shot of the product plugged directly into a local outlet should be treated as claims requiring configuration-specific support—not merely creative styling.

08

How should the matrix control the localization workflow?

Make compatibility approval a prerequisite for scripts, shot lists, editing and translation. This prevents one generic supplier asset from being reused in markets where its visible plug or package creates an unsupported promise.

Start with the evidence pack, complete one row per country and SKU, and assign technical, compliance and creative owners. Route approved rows into localized production. Route held rows back to evidence collection, and remove blocked rows from creative and campaign plans. Copy the approved compatibility language into the product page so the ad and offer do not contradict each other.

For each approved market, specify shots showing the exact plug, power-supply label, included adapter and complete package. Avoid cropping out a mismatched plug or replacing it with a prop: that conceals the problem rather than resolving it. Reopen the row after any supplier or package change.

ATIYO can preserve the roadmap, brief, market row, evidence references, asset versions, iterations and reusable creative learnings in one operating workflow. It does not verify electrical safety or market authorization, so technical and legal approval must come from the appropriate evidence and reviewers. Media performance remains in the ad platform and ATIYO preserves creative context and learnings.

1. Build and version the retail-package evidence pack.
2. Complete one market-and-SKU row for each planned country.
3. Assign technical, compliance and creative reviewers.
4. Block unsupported rows from scripts, shoots and localization.
5. Produce market-specific plug, label and box-content shots for approved rows.
6. Copy the approved claims and qualifications into the product page.
7. Reopen approval after any supplier, component or package change.