Marine Economic Development Demonstration Zone, Wenzhou City, Zhejiang Province, China
How to Choose 30mA, 100mA, or 300mA RCD Protection for Different Applications When selecting an RCD, many buyers and installers focus first on the leakage current rating: 30mA, 100mA, or 300mA. These values look simple, but choosing the wrong one can lead to poor protection, nuisance tripping, or an installation that does not match the […]
Contactor vs Circuit Breaker vs Relay: What Should Control the Load? When you need to control a load, the real question is not which device sounds more advanced. The real question is which device should be responsible for protection, which one should handle switching, and which one should manage the control signal. In many practical […]
What Happens to a Smart Breaker or Smart Energy Meter After a Power Outage? A power outage does not affect every part of a smart electrical system in the same way or at the same speed. In most cases, the device powers back up first, its protective function returns immediately, network connectivity comes back later, […]
The EU trademark “tongou” (Registration No. 018630309) is owned by Changyou Technology (Zhejiang) Co., Ltd. We position ourselves as providers of intelligent product solutions for high and low voltage electrical systems, taking on solving customers’ pressures and challenges as our responsibility and creating value for them. We utilize intelligent products to serve global customers, making life smarter and more convenient to benefit your life.
Marine Economic Development Demonstration Zone, Wenzhou City, Zhejiang Province, China
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