About Us

More than 30 years of history and experience

What does TONGOU do?

Tongou is a registered trademark of Changyou Technology, established in 1993, dedicated to becoming a leading expert in high-end low-voltage electrical system solutions. We take solving customers' pressures and challenges as our mission and are committed to creating exceptional value for our customers.

Tongou focus on the electricity safety products for household, commercial, industrial and similar installations, Such as Miniature Circuit Breaker (MCB), Residual Current Circuit Breaker(RCCB), Residual Current Circuit Breakers with Over-current Protection(RCBO), Switch-Disconnector, Distribution Box, Moulded case circuit breaker(MCCB), air circuit breaker(ACB), AC Contactor, and smart circuit breakers of IoT.

80+ Staff

Strong production team, excellent after-sales service

30+ Years

Rich professional and customer service experience

Certificates

We are a Qualified & Certified Electrical Company

We cooperate with many well-known large-scale certification agencies, such as TUV, VDE, SAA, BV, Intertek, CCC. The product testing experiments are all certified by CNAS laboratories. According to IEC, EN, GB, AS/NZS and other standards, we can Quickly provide our certificate or test report to the customer who needs it, and we can also obtain the corresponding certificate according to the customer's requirements.

Our Advantages

Reasons You Should Choose Us

Tongou is your source for a complete range of high-quality electrical products, including product technical support, factory price support and delivery speed support.

Would you like to Get Samples
From Tongou?

We are very happy to provide our samples to customers for testing and debugging. Please send a message to us now

Send a Message Sampe Request

Factory Shooting

ISO 9001 certification

All our staffs and machines within an Integrated Management System which passed ISO 9001 Quality System to ensure the delivery of services that are at an exception level of quality, reliability, and value.