Type B vs. Type K
Comparing 2 standards across 5 specifications. 4 key differences identified.
Type B adds a round grounding pin to Type A's two flat blades -- NEMA 5-15, the most common outlet in North America. The ground pin is deliberately longer than the power blades, so it connects before and disconnects after them, a safety-sequencing feature shared with several other grounded plug types worldwide.
Type K is Denmark's standard -- two round power pins plus a separate round earth pin mounted on the plug, offset from center. Used exclusively in Denmark, Greenland, and the Faroe Islands; EU accession has allowed Schuko (Type F) sockets in Danish homes since the early 1990s.
Specification Comparison Table
5 Parameters| Parameter / Spec | ||
|---|---|---|
|
Pin Count
|
2 flat blades + 1 round ground pin (longer than the blades) | 2 round power pins + 1 round/D-shaped earth pin (on the plug) |
|
Rated Current
|
15 A | 16 A |
|
Rated Voltage
|
125 V | 250 V |
|
Grounded
|
Yes | Yes |
|
Common Regions
|
USA, Canada, Mexico, Central America, Japan (grounded appliances) | Denmark, Greenland, Faroe Islands (exhaustive -- not used elsewhere) |