Description

GYDZT Economical Smart Circuit Breaker is a cutting-edge WiFi-enabled IoT device designed for comprehensive energy management, real-time monitoring, and advanced electrical protection. Whether you are upgrading a residential smart home setup or optimizing a commercial low-voltage distribution network, this smart breaker allows you to turn circuits on or off remotely via your smartphone from anywhere in the world. As a core component of modern energy ecosystems, it bridges the gap between traditional circuit protection and intelligent automation.

By integrating seamlessly with the Tuya Smart and Smart Life applications, users gain unprecedented visibility into their power usage. You can review real-time current, power, voltage, leakage current, temperature, and total battery/recharge capacity directly on your phone. Furthermore, the GYDZT series empowers users to set custom thresholds for overvoltage, undervoltage, overcurrent, and leakage current, ensuring your electrical appliances are safeguarded against grid fluctuations and faults.

Smart App Integration & Automation

Adding the GYDZT smart breaker to your network is highly intuitive. Simply connect your mobile device to a 2.4GHz Wi-Fi router, download the Tuya Smart or Smart Life app, and pair the device. Once connected, you unlock powerful automation features:

Four Timing Modes: Configure up to 30 sets of timing settings using Timing Mode, Countdown Mode, Cycle Timing, or Jog Switch.
Automatic Reclosing: Minimize downtime with customizable auto-reclosing functionalities after a fault is cleared.
Prepaid & Metering Functions: Monitor daily, monthly, and yearly electricity consumption. Select models even support bidirectional metering for photovoltaic (solar) power generation input to the state grid.

Please refer to the PDF content for product dimensions and pairing procedures.

Parameter	Specification / Range
Rated Supply Voltage	AC 230V
Operation Voltage Range	AC 80V – 400V (Single Phase)
Rated Frequency	50/60Hz
Electric Current (>A)	1A – 63A (Adjustable, Accuracy 0.1A)
Over Voltage (>U) Setting	120V – 300V (Adjustable, Default: 275V)
Under Voltage (<U) Setting	80V – 210V (Adjustable, Default: 175V)
Electric Leakage Protection	10mA – 99mA (Default: 50mA, Can be turned off)
>U and <U Trip Delay	0.5s
Over Current / Leakage Protect Times	1 – 30 times (Default: 5, Can be turned off)
Power Display Range	0 – 99999.9 kW/h
Reset / Start Delay	10s – 99s (Default: 10s)
Operating Temperature	-30 °C to 70 °C

Frequently Asked Questions (FAQs)

1. If the network connection is lost, can GYDZT still provide protection functions for the corresponding models?

If the GYDZT WiFi module fails, it will impact remote control and data retrieval capabilities (specifically, data logging and remote control within the mobile app will cease to function); however, it will not affect the basic protection functions of the corresponding product model.

3. Does it support 5GHz, or is it limited to 2.4GHz? What should I do if network configuration fails?

The GYDZT supports 2.4GHz Wi-Fi signals; connections attempted via 5GHz will fail. If you encounter this issue during the device pairing process, please switch to a different Wi-Fi network.

4. Can it completely replace traditional MCBs or RCCBs?

As we all know, smart products typically entail higher costs across the board compared to their traditional counterparts. From its inception, the GYDZT was designed to offer the convenience of smart remote control and electrical data monitoring—particularly for small-scale applications—by utilizing more cost-effective materials and a refined design, without compromising its core protective functions or performance.
This product integrates the overload and short-circuit protection features of traditional MCBs with the leakage protection capabilities of RCCBs, making it a highly cost-effective solution for residential use.
A sincere advisory is included here: electronic smart circuit breakers *may* fail under extreme conditions; in contrast, electromagnetic circuit breakers tend to be more reliable when operating in environments that approach such extremes.

Variant Feature Comparison

The GYDZT series is available in six distinct models (T, J, JT, JL, JLS, DJ) to suit different technical requirements. Use the table below to select the right configuration for your project. For more information, please refer to the product catalog or contact GEYA After-Sales Service.

Function / Feature	T	J	JT	JL	JLS	DJ	App Settings & Details
ON/OFF, Timing	•	•	•	•	•	•	4 timing modes (30 sets of settings)
Reclosing	○	•	•	•	•	•	Automatic re-closer APP (ON/OFF)
Metering	○	•	•	•	•	•	View electricity input/consumption (Prepaid)
Under voltage (adjustable)	○	○	•	•	•	•	80V-210V (Default: 175V)
Over voltage (adjustable)	○	○	•	•	•	•	120V-300V (Default: 275V)
Over current (adjustable)	○	•	•	•	•	•	1.0A-63A (Default: 63A)
Reclosing time (adjustable)	○	○	•	•	•	•	Delay time: 10s-99s (Default: 10s)
Reclosing times (adjustable)	○	○	•	•	•	•	1-30 times off (Default: 5)
PV bidirectional metering	○	○	○	•	•	•	View PV power generation to State Grid
Leakage current (adjustable)	○	○	○	•	•	•	10-99mA (Default: 50mA)
Temperature (adjustable)	○	○	•	•	•	•	Over temperature protection: 10-85°C
Over current delay (adjustable)	○	○	○	○	○	•	Delay time: 1s-15s (Default: 1s)
Loss of current delay (adjustable)	○	○	○	○	○	•	Delay time: 1s-15s (Default: 1s)