1. Full DC & AC Leakage Detection Compliance
Detects 6mA DC and 20/30mA AC residual currents — fully compliant with IEC 62752 and UL2231, making it ideal for EV charging safety.
2. Wide Operating Temperature – From -40°C to +105°C
Engineered for reliability in extreme environments, from freezing cold to high-heat industrial or outdoor conditions.
3. Fast Calibration & Built-in Self-Test Logic
Supports automated calibration (≥240ms) and self-test mode (≥60ms), with clear SCR output logic (DC 4.8V when fault detected), simplifying integration and diagnostics.
4. Low Power Consumption, High Precision
Consumes only 110mW, yet maintains accurate detection through calibration signal compensation — ideal for energy-conscious smart systems.
5. Clear Digital Output with Strong Drive Capability
SCR signal output delivers clear fault status (LOW 0V / HIGH 4.8V), with current drive capability up to 5mA, allowing direct interfacing with control systems.
6. Designed for Seamless Embedded Integration
Supports 5V ±0.25V supply, simple digital pin control logic, and standardized signal timing – making it plug-and-play friendly for most microcontrollers and safety modules.
| Rated residual operating current1（DC） | 6mA DC |
|---|---|
| Rated residual operating current2（AC） | 20mA/30mA AC |
| Supply Voltage | 5V（DC） |
| Operating temperature | -40~105℃ |
| Power wastage | 110mW |
| Standard | Compliance with IEC 62752, UL2231 is required |
ZTC Type B CT For EV Charging
These CTs are designed to accurately measure the current flowing through a conductor and provide a proportional output signal to an associated monitoring or control device.
Type B CTs are typically used for applications where the primary current is relatively constant, such as in charging piles or guns for electric vehicles, where the current is typically controlled to a set level during charging. Type B CTs have a high level of accuracy over a wide range of frequencies, making them suitable for use in a variety of applications.
Any detected leakage should be addressed promptly to prevent damage to the equipment or potential safety hazards.
We have well educated engineers collaborate with rich experienced technican dedicating to project developing and problem solving. Providing professional advice for split core current sensor, differential current transformer mechanical design, electrical parmeters setting for EV charging solution, energy monitor system application.
Our plant covers 20,000 square meters holding more than 300 well skilled workers and hundreds winding machines and testing instruments with automated equipments. We are pleasure to meet your requirments at different stages of project, small lot and bulk orders are all available for manufacturing.
As current transformers are kinds of critical components used for electrical safety devices, we highly value quality in the whole process. By doing 100% incoming and outcoming inspection, customers are satisfied with our strict quality control.
Lead times vary with special materials and necessary tooling. Samples are produced post-tooling completion.
Shipping time varies by method: 2-5 days for courier, 3-7 days for air, and 7-40 days for sea. We select the optimal shipping based on your needs.
In-stock items ship in 1-2 days for testing. Otherwise, sample preparation takes 3-4 days.
Lead times depend on material availability, production schedules, and order size. Expect 1-2 weeks for materials and 2-3 weeks for production.
To Discuss Your Need Of Current Transformers For Electric Metering Or Electrical Safety. Tailor Made Products And Customized Solutions Are Welcome.
