Ensuring Safe Power Distribution: Understanding TIS 2432-2555 and the Role of KUOYUH 88 & 94N Series in Power Strips

TIS 2432‑2555 Certified Cord Extension Circuit Breaker

When it comes to household electrical safety in Thailand, TIS 2432-2555 is the key national standard governing extension cords and power strips. As electrical demands increase in modern homes and offices, ensuring compliance with this safety regulation is not only mandatory but also critical for preventing electrical hazards.

What is TIS 2432-2555?

TIS 2432-2555 is the Thai Industrial Standard for Power Strip for household and similar purposes, issued by the Thai Industrial Standards Institute (TISI). This standard ensures that power strips meet stringent electrical, mechanical, and fire safety requirements.
Key Scope:

  • • Rated voltage ≤ 250V
  • • Rated current ≤ 16A
  • • Covers power strips with or without switches, circuit breakers, or surge protection

Core Safety Requirements:

  • • Electrical insulation and dielectric strength
  • • Flame resistance and heat endurance
  • • Mechanical durability
  • • Overload and short-circuit protection
  • • Mandatory labeling and the TIS certification mark

Hidden Danger: Non-Functional Circuit Breakers in the Market

Some low-cost power strips in the market may claim to include circuit protection, but upon inspection, the internal "circuit breaker" is found to be non-functional, lacking actual metal components or thermal elements.

The image on the right shows a so-called breaker with no real protective mechanism inside—just a spring and plastic housing. These fake components do not provide any overload or short-circuit protection, putting users at risk of:

Fake Circuit Breaker with No Real Protective Mechanism Inside

  • • Electric shock
  • • Wire overheating and fire
  • • Appliance damage

This underscores the critical need to choose circuit breakers from reputable manufacturers with verified certifications, such as UL, TUV, or RoHS.





KUOYUH 88 Series: Push-to-Reset Safety for Compact Designs

The KUOYUH 88 Series is a compact, push-to-reset thermal circuit breaker that fits perfectly into modern power strip designs, offering:KUOYUH 88 Series Circuit Breaker in Power Strips

  • • Real-time overload protection
  • • Simple manual reset
  • • Certified by UL, TUV, supporting easy TIS compliance
  • • Small size for portable or slim strip designs




KUOYUH 94N Series: All-in-One Switch + Circuit Breaker Solution

The KUOYUH 94N Series combines a power switch and thermal circuit breaker into a single unit, providing:KUOYUH 94N Series Circuit Breaker in Cord Extension

  • • Dual functionality: power control + protection
  • • Clear reset operation for the end user
  • • Simplified internal design and wiring
  • • Fully TUV, UL approved, and TIS-compatible







Why Certification and Brand Reputation Matter

Using verified protective components is not only essential for TIS 2432-2555 compliance, but also for user safety. Fake or substandard circuit breakers can give a false sense of security, while offering no real protection.
By choosing KUOYUH 88 or 94N Series, manufacturers gain:
  • • Trusted quality from an experienced circuit breaker brand
  • • Simplified testing and approval with pre-certified components
  • • Greater peace of mind for end users

Conclusion

Safety should never be compromised for cost. As the demand for power strips grows, so does the need for genuine, certified protection. Choose KUOYUH—a proven brand with functional, fully tested circuit protection that complies with TIS 2432-2555 and beyond.
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