1R20 Series
1R20 Series Type A + DC 6mA RCD Sensor
Digital residual current sensor for AC EV charging stations, designed for Type A + DC 6mA detection requirements.
View DetailsRCD Sensors
RCD sensors for EV charging equipment
Digital-output residual current detection sensors and integrated magnetic core solutions for charger controller and safety system design.
Selection Overview
Compare product families
2R4Z
2R4Z Type A + DC 6mA RCD Sensor
Type A + DC 6mA RCD sensor with integrated voltage and current transformers for EV charging applications.
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3R14X
3R14X Type A + DC 6mA RCD Sensor
Compact Type A + DC 6mA residual current sensor for AC EV charger safety detection.
View Details4R2Z
4R2Z Type A + DC 6mA RCD Sensor
Type A + DC 6mA RCD sensor for European Mode 2 EV charging devices and AC charging applications.
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5R15Z
5R15Z Type A + DC 6mA RCD Sensor
Type A + DC 6mA RCD sensor used in GB-standard EV charging pile applications.
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6R2Z
6R2Z Type A + DC 6mA RCD Sensor
Type A + DC 6mA residual current sensor with integrated current transformer.
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CT1719
CT1719 Type A + DC 6mA RCD Magnetic Core
A+6 leakage detection magnetic core with integrated current transformer, used with the ILM2112TQC chip.
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CT1836
CT1836 Type A + DC 6mA RCD Magnetic Core
Compact A+6 leakage detection magnetic core designed for use with the ILM2112TQC residual current detection IC.
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CT2728
CT2728 Type A + DC 6mA RCD Magnetic Core
A+6 leakage detection magnetic core with an integrated 32A current transformer for EV charging equipment.
View DetailsApplication Guide
Choose by charger platform
Start from Mode 2, Mode 3, GB-standard, three-phase, integrated CT, or chip + magnetic-core architecture before narrowing the model.
IC-CPD / portable EV charger
Mode 2 Portable Charger
Start here for compact controller layouts where residual current detection must fit inside a portable charging device.
Use 4R2Z for compact module layouts; consider 2R4Z when integrated VT/CT functions help simplify the design.
Wallbox / AC charging station
Mode 3 AC Charger
For AC charger controllers that need Type A + DC 6mA residual current detection in Mode 3 platforms.
Recommended
2R4Z is useful for integrated sensing; 1R20 Series is a broad fit for Mode 3 charger platforms.
GB/T AC charging pile
GB-Standard AC Charging Pile
For GB-standard AC charging pile projects where the residual current detection module sits inside the charger safety loop.
Recommended
5R15Z is the primary starting point for GB-standard AC charging pile applications.
Higher-power Mode 3 AC charger
Three-Phase 22kW Charger
For larger conductor paths and three-phase AC charger architectures that need Type A + DC 6mA detection.
Recommended
Discuss conductor layout and rated current early so the proper 1R20 Series variant can be selected.
Integrated sensing block
Integrated CT Architecture
For designs that benefit from current transformer integration or fewer separate magnetic components around the controller.
6R2Z provides an integrated current transformer; 2R4Z also integrates voltage and current transformer functions.
Custom leakage detection circuit
Chip + Magnetic Core Solution
For teams that prefer a solution-level architecture using an external leakage detection chip with a magnetic core.
Recommended
CT1719 is a starting point for ILM2112TQC-based custom circuit evaluation.
Engineering Comparison
Compare models at a glance
Use this table for early model screening. Final selection should also consider conductor routing, rated current, PCB space, and validation requirements.
| Model | Best Fit | Integration | Output | Power / Key Rating | Standards | Action |
|---|---|---|---|---|---|---|
| 1R20 SeriesDigital residual current sensor for AC EV charging stations, designed for Type A + DC 6mA detection requirements. | AC EV charging stations / Mode 3 EV chargers | RCD sensor module | Digital output | 5V | IEC 62955, IEC 61851, IEC 62752 | |
| 2R4ZType A + DC 6mA RCD sensor with integrated voltage and current transformers for EV charging applications. | European Mode 2 EV chargers / European Mode 3 EV chargers | Integrated VT + CT | Digital output | 5V | IEC 62955, IEC 61851, IEC 62752 | |
| 3R14XCompact Type A + DC 6mA residual current sensor for AC EV charger safety detection. | AC EV charging stations / Charging controller PCBs | RCD sensor module | Digital output | 5V | IEC 62955, IEC 61851, IEC 62752 | |
| 4R2ZType A + DC 6mA RCD sensor for European Mode 2 EV charging devices and AC charging applications. | European Mode 2 EV chargers / Portable EV chargers | RCD sensor module | Digital output | 5V | IEC 62955, IEC 61851, IEC 62752 | |
| 5R15ZType A + DC 6mA RCD sensor used in GB-standard EV charging pile applications. | GB-standard EV charging piles / AC EV charging stations | RCD sensor module | Digital output | 5V | IEC 62955, IEC 61851, IEC 62752 | |
| 6R2ZType A + DC 6mA residual current sensor with integrated current transformer. | AC EV charging stations / Charging controller PCBs | Integrated CT | Digital output | 5V | IEC 62955, IEC 61851, IEC 62752 | |
| CT1719A+6 leakage detection magnetic core with integrated current transformer, used with the ILM2112TQC chip. | Mode 2 EV chargers / Mode 3 EV chargers | Integrated CT | Digital output at solution level | Rated Frequency: 50/60Hz; Rated Input Current: 20A | IEC 62955, IEC 61851, IEC 62752 | |
| CT1836Compact A+6 leakage detection magnetic core designed for use with the ILM2112TQC residual current detection IC. | AC EV charging stations / Mode 2 EV chargers | Magnetic core + chip | Digital output at solution level | 5V | IEC 62955, IEC 61851, IEC 62752 | |
| CT2728A+6 leakage detection magnetic core with an integrated 32A current transformer for EV charging equipment. | AC EV charging stations / Mode 2 EV chargers | Magnetic core + chip | Digital output at solution level | Rated Frequency: 50/60Hz; Rated Input Current: 32A | IEC 62955, IEC 61851, IEC 62752 |