Applies to: Six named plug-system form treatments using Interpower's manufacturer reference. National references are historical; no claim of current jurisdiction-specific installation approval.
Voltage and frequency do not follow the outline
Read the appliance or adapter input range, required earthing and local supply. A universal-input label must actually cover that supply and equipment use. Do not infer voltage conversion from mechanical fit; consult the exact equipment/manual and current local qualified handoff when uncertain.
Guide to Worldwide Plug and Socket Patterns & Power MainsUse the official form handoff
Each cited pattern includes manufacturer mating-face pictures. These links are identification references, not engineering drawings, scaled fit checks or permission to replace installed wiring. Do not use the old chart's letter keys as IEC universal type letters.
Worldwide Plug PatternsWorked documentary examples
CEE7/7 continental European grounded pattern
Documented outcome: Bounded form identification
- Identify the hybrid earthing arrangement from the maker's mating-face reference; compare Europlug without assuming equivalent earthing. Continental-Europe form context; current local socket/supply approval must be checked.
- Compare disconnected visible form and markings with the official pattern handoff.
- Read the device's exact voltage/frequency/current input label and local supply separately.
- An adapter changes mating form only unless an exact product also documents conversion; stop at unknown earthing or supply suitability.
CEE7/16 Europlug
Documented outcome: Bounded form identification
- Two round contacts, without an earth contact; distinguish it from the thicker grounded continental assembly. Ungrounded Europlug form context; not every round-pin appliance plug.
- Compare disconnected visible form and markings with the official pattern handoff.
- Read the device's exact voltage/frequency/current input label and local supply separately.
- An adapter changes mating form only unless an exact product also documents conversion; stop at unknown earthing or supply suitability.
BS1363 United Kingdom/Ireland pattern
Documented outcome: Bounded form identification
- Three rectangular pins in the maker's pattern; inspect product marks and exact approved assembly rather than a generic travel-plug name. UK/Ireland form context; no wiring/fuse replacement instructions.
- Compare disconnected visible form and markings with the official pattern handoff.
- Read the device's exact voltage/frequency/current input label and local supply separately.
- An adapter changes mating form only unless an exact product also documents conversion; stop at unknown earthing or supply suitability.
AS/NZS3112 Australia/New Zealand pattern
Documented outcome: Bounded form identification
- Angled flat-pin arrangement; distinguish grounded and ungrounded variants and similarly angled other-country forms. Australia/New Zealand form context; no cross-jurisdiction substitute approval.
- Compare disconnected visible form and markings with the official pattern handoff.
- Read the device's exact voltage/frequency/current input label and local supply separately.
- An adapter changes mating form only unless an exact product also documents conversion; stop at unknown earthing or supply suitability.
CEI23-50 Italy pattern
Documented outcome: Bounded form identification
- Three inline round-pin arrangement in the reference; size/current variants remain distinct. Italian form context; do not identify exact variant from a screen image's scale.
- Compare disconnected visible form and markings with the official pattern handoff.
- Read the device's exact voltage/frequency/current input label and local supply separately.
- An adapter changes mating form only unless an exact product also documents conversion; stop at unknown earthing or supply suitability.
NEMA5-15 North America pattern
Documented outcome: Bounded form identification
- Two flat blades and a separate earth contact; distinguish ungrounded NEMA1-15 and other NEMA blade arrangements. North American form context; matching outline is not supply/installation approval.
- Compare disconnected visible form and markings with the official pattern handoff.
- Read the device's exact voltage/frequency/current input label and local supply separately.
- An adapter changes mating form only unless an exact product also documents conversion; stop at unknown earthing or supply suitability.
Your next useful observation
Record full plug pattern/markings and the device input label before considering a permitted adapter.
Keep these limits
- No current country voltage/frequency table, wiring, fuse change or earthing substitution guidance.
Source documents, revisions and inspection methods
Worldwide Plug Patterns
Interpower · Live revision not stated; historical national-standard references
CEE7/7; CEE7/16; AS/NZS3112; BS1363; CEI23-50; NEMA5-15 panels
Inspected 2026-10-23 by public_page. Primary HTML page read directly in web reader; relevant body text and named table/section inspected. Not search-excerpt-only evidence. AI source review, no independent human review or hardware validation.
Form identification and official manufacturer pattern handoff; not current jurisdiction approval.
Read the original sourceGuide to Worldwide Plug and Socket Patterns & Power Mains
Interpower · Live revision not stated
Guide introduction; nominal supply and pattern qualification
Inspected 2026-10-23 by public_page. Primary HTML page read directly in web reader; relevant body text and named table/section inspected. Not search-excerpt-only evidence. AI source review, no independent human review or hardware validation.
Form versus local supply lessons; historical chart is not current installation guidance.
Read the original sourceSource-documented education. Hardware behavior and independent human review have not been performed for these examples.