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Type B plug: shape, grounding and countries

Two parallel flat blades and a grounding pin. A two-slot outlet does not provide the grounding path a Type B device may need.

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Fit is not a safety verdict

A two-slot outlet does not provide the grounding path a Type B device may need.

Type B shape and grounding

Two parallel flat blades and a grounding pin. This overview describes a family, not a manufacturing drawing. Exact pin dimensions, current rating, polarity and national certifications depend on the variant.

Schematic Type B plug front and socket face
Illustrative Type B family drawing. Not to scale; not a fit or grounding test.
Type B reference characteristics
Typical shapeTwo parallel flat blades and a grounding pin.
Protective earth in grounded variantYes, if the correct contacts and wiring are present
Standard referencesNEMA 5-15, JIS C 8303
Known variantsB_NEMA_5_15, B_JIS
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Type B variants and ratings

A family can contain different national or current-rated variants. The values below are reference identifiers, not permission to use a particular manufactured plug at that load. Read the exact product marking and local standard.

Documented Type B variants
VariantReference currentEarth contact
B NEMA 5 1515APresent in variant design
B JISNot establishedPresent in variant design

Plug-to-socket direction matters

These research rules start with a male appliance plug and end at a wall socket. Reversing the route can change the result. Even a documented family fit needs an intact installation and the device voltage, frequency and current checks.

Directional plug to socket reference checks
Device male plugWall socketReference resultEarth path
B NEMA 5 15B NEMA 5 15same standard variant conditionalDocumented conditional contact
B JISB JISsame standard variant conditionalDocumented conditional contact
B NEMA 5 15A NEMA 1 15does not fitNot preserved or unverified
B NEMA 5 15B JISneeds exact variant verificationNot preserved or unverified

Where Type B is listed

The destination records list this family in 30 destination profiles. This is not a verified inventory of every hotel outlet.

Search all destination profiles

How to check a connection

  1. Identify the exact male plug on your appliance and the socket in the room.
  2. Check the adapter input and output variants, not just the Type B label.
  3. Compare AC input voltage, frequency, protective earth and the lowest current rating in the chain.
  4. Stop if a pin must be forced, the connection is loose or the manufacturer excludes the appliance.

MAG Kabel , MK Cable · Use the device checker

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