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Type O power plug diagram
Thai plugTIS 166-2549Thailand standard

Type O

Type O is the official standard plug for Thailand. It's a hybrid system that can accept plugs from many different countries including Type A, B, C, and O itself. The Thai outlet is designed to be highly versatile for tourists.

⏚ Grounded220V50Hz3 Pins16A

Technical Specifications

Pin Shape
Round pins with grounding pin
Number of Pins
3
Grounded
Yes
Voltage
220V
Frequency
50Hz
Max Amperage
16A

Pin Dimensions

pin Length19mm
pin Diameter4.8mm
pin Spacing19mm

History

Thailand developed Type O to solve the problem of tourists bringing various plug types. Rather than forcing visitors to use adapters, Thailand created a universal outlet that accepts multiple plug standards while maintaining safety with a grounding option.

Safety Features

Type O outlets feature a recessed design with a grounding option. The versatile socket design accepts multiple plug types but maintains safety standards. Modern Thai outlets include child safety shutters.

Compatibility

Type O outlets accept Type A, B, C, and O plugs. This makes Thailand one of the most adapter-friendly countries for travelers. However, Type G (UK) and some European grounded plugs may still require adapters.

Travel Tips

  • Thailand is very adapter-friendly - most plugs work without adapters
  • Type A, B, and C plugs all work in Thai outlets
  • Thailand uses 220V - check your device's voltage compatibility
  • Modern hotels often have universal USB charging ports as well

Frequently Asked Questions

What is a Type O power plug?

Type O is the official standard plug for Thailand. It's a hybrid system that can accept plugs from many different countries including Type A, B, C, and O itself. The Thai outlet is designed to be highly versatile for tourists.

Which countries use Type O plugs?

Type O plugs are used in 0+ countries, primarily in Southeast Asia. Popular countries include .

Is Type O a grounded plug?

Yes, Type O is a grounded (earthed) plug with 3 pins, providing protection against electrical faults.

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