Heyi Single -Phase /Three-Phase AC automotive current transducer HYB-A

The core value of HYB -A

HYB -A is a single-phase /three-phase automotive current transducer that isolates and converts AC current parameters of the power grid into linear DC analog signals .

It supports output in the form of 0-20 mA/4-20 mA/0-5 V/0-10 V, with an accuracy of 0.2 and 0.5 Class . It supports inputs of 0.1A, 1A, 5A, etc. (can match current transformers ).

It has the characteristics of quadruple isolation of input/output/power supply/housing , AC/DC Features include 80–270V wide power supply, ≤400 ms response time, and DIN35 rail mounting.

Overload capacity:

2x long-term, 10x/10s, dielectric strength: AC 2 kV/1 min, insulation resistance >100 MΩ @ DC 500 V; operating environment: 0–50°C / <80% RH. One-year warranty.

These parameters mean that HYB-A is suitable for both standard loop signals in process control and electrical parameter acquisition in buildings and distribution cabinets, achieving a very stable engineering balance between cost, versatility, and reliability.

Considerations for product selection for automotive current transducer

Output and load

Current type (4–20 mA/0–20 mA):

The current loop compliance voltage is approximately 10 V, and the maximum load is ≈10 V/20 mA=500 Ω.

Voltage type (0–5 V/0–10 V):

To ensure linearity and ripple, the load resistance should be ≥ Vout/10 mA (e.g., 0–10 V ≥ 1 kΩ).

Matching current transformer and range:

the input side is connected to the secondary side (5 A/1 A), and is selected according to the primary rated current and current ratio ;

if there is surge/inrush current, the 2× long-term/10× short-term overload window can be used to ensure that the equipment is not saturated and does not falsely alarm.

Zero/full scale calibration: Panel ZERO/SPAN fine-tuning can be used for system-level calibration.

Installation and power supply:

DIN rail +80–270 V AC/DC compatible, suitable for 220–240 V/50 Hz and power grid fluctuations common in Southeast Asia; 12/24/48VDC can also be customized to match PLC cabinets.

Comparative positioning: with common alternatives

plan	advantage	Limitations	HYB-A Location
Shunt resistor + isolation amplifier	Low cost, high bandwidth	Heat generation, voltage drop, and careful isolation design are required	HYB-A eliminates the complexity of discrete isolation and is more robust overall
Open-loop Hall sensor	No need for series CT, considerable bandwidth	Zero drift, temperature drift, magnetic noise	HYB-A is more user-friendly in terms of accuracy and long-term stability
Smart meter built-in transmitter	Integration	Channel/range limited	HYB-A1 is more flexible, easy to customize by OEM, and easy to expand multiple channels.

 

Conclusion:

In terms of 0.2-level accuracy, universal interface and system adaptability, automotive current transducer HYB-A is a universal electronic component for distribution cabinets, industrial control and building BAS .

Key application scenarios and implementation suggestions

Industrial Automation/Process Control

Pump/fan/compressor current monitoring → 4–20 mA is connected to the DCS/PLC and AI module to achieve overload/no-load diagnosis and energy consumption management.

Monitoring OEE of production line equipment → Using current curves as “virtual sensors” to identify standby and load conditions.

Note : Current loop power supply, load ≤ 500 Ω; avoid strong interference circuits when wiring in the cabinet; use delay filtering for startup peak current to avoid false alarms.

Building and Data Center Power Distribution

Distribution circuit branch current collection (0–10 V or 4–20 mA → BAS/SCADA) for sub-metering and PUE monitoring.

UPS/generator parallel monitoring:

Utilize 10×/10s short-term overload margin to cope with switching shock.

Water/Municipal Affairs and New Energy Support

Pumping station/wastewater treatment plant: Pump efficiency decay/clogging is measured by current;

Rooftop PV AC side: Inverter output branch current collection (pay attention to temperature, humidity and anti-condensation).

Charging Infrastructure and Small Electromechanical Equipment

AC charging pile: Use current transmission and relay/temperature to achieve overcurrent/temperature rise linkage protection;

OEM complete distribution box: with 0.2% accuracy and wide power supply, it reduces part numbers and accelerates integration.

Access and Compliance

Low-voltage power distribution/measurement products generally require reference to relevant IEC/EN standards and local registration/inspection according to national regulations (e.g., Malaysia’s SIRIM, Thailand’s TISI, Indonesia’s SNI, etc.).

Whether this is mandatory depends on the intended use and electrical category. Consult with local authorities.

Environmental adaptability:

Tropical environments with high humidity, salt spray, and mildew risk are high, so moisture-proof/mildew-proof coating and terminal anti-loosening design are recommended.

For outdoor enclosures, anti-condensation heating strips and IP protection solutions are recommended.

Applications with dynamic fast loads (<100 ms level) need to evaluate a response upper limit of ≤400 ms.

If high-speed capture is required, event detection should be superimposed on the upper-level system or a dedicated high-speed sensor should be used.

Environmental limits:

Standard version 0–50°C, <80%RH; for extreme high temperature, high humidity/condensation environments, please use heating, dehumidification and thermal design or choose the enhanced OEM version.

Conclusion

With high precision, universal output, wide power supply range, and comprehensive isolation, the HYB-A1 offers plug-and-play advantages in industrial automation, building BAS, data center power distribution, water utilities, and renewable energy applications.

Compay：HEYI Electrical Co., Ltd.

Brand: HEYI/ASCT

Contact: Bethy

E-mail: heyi@heyiele.com             

Tel: 86-13968747975

 

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