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Switch-Output Residual Current Sensors
iFluxgate® Technology for Precise Current Detection and Enhanced System Safety
Product Overview
Magtron’s Switch-Output Residual Current Sensors are engineered to meet the needs of a wide variety of electrical systems. Whether for EV charging stations, photovoltaic systems, or energy storage applications, these sensors provide rapid and reliable leakage current detection. By employing the iFluxgate® technology, these sensors offer high precision and low zero drift, ensuring long-term performance in harsh environments.
Applications
EV Charging Stations
Ideal for use in both residential and commercial EV charging stations, where leakage current protection is critical.
Photovoltaic Systems
Ensures safe operation of solar inverters by detecting and preventing leakage currents in both AC and DC circuits
Energy Storage Systems
Used to monitor and protect DC leakage currents in large-scale energy storage systems, preventing equipment failure
Ground Fault Detection
Plays a vital role in protecting electrical systems by detecting ground faults before they cause damage
Technical Specifications
Magtron’s Switch-Output Residual Current Sensors come in several models with varying specifications tailored to your needs. Below are the details for our most popular models
| Series | Model | Package style | Certification/ | I△n rms [mA] | Overcurrent | Application scenario | Applicable |
|---|---|---|---|---|---|---|---|
| SM Series | RCMU101SM8-6EI-AK |  | CE | 6mA DC/30mA rms | 40A | Charging mode two/mode three | Single phase 7kW |
| RCMU101SM7-EI-7WK |  | / | 6mA DC/30mA rms | Customize | Charging mode three | Single phase 7kW | |
| RCMU101SM1-2EI-K |  | CE | 6mA DC/30mA rms | 20A | Charging mode two/mode three | Single phase 3.3kW | |
| RCMU101SM3-6EI-K |  | CE | 6mA DC/30mA rms | 42A | Charging mode two/mode three | Single phase 7kW | |
| RCMU101SM3-6EI-UD |  | CE/UL | CCID20/6mA DC | 42A | American standard charging mode Level 1/2 | American standard 0~9.6kW |
| Series | Model | Package style | Certification/ | I△n rms [mA] | Overcurrent | Application scenario | Applicable |
|---|---|---|---|---|---|---|---|
| SN Series | RCMU101SN-4P4E-7LUD |  | CE/UL | CCID20/6mA DC | 40/80 | American standard charging mode Level 1/2 | American standard 0~19.2kW |
| RCMU101SN-4P4E-4SK |  | CE | 6mA DC/30mA rms | 32A | Charging mode two/mode three | Three-phase 11/22kW | |
| RCMU101SN-4P4E-6MK |  | CE | 6mA DC/30mA rms | 32A | Charging mode two/mode three | Three-phase 11/22kW | |
| RCMU101SN-4P4E-6MU |  | CE | 20mA rms | 32A | Charging mode two/mode three | 美标桩 | |
| RCMU101SN-4P4E-6SK |  | CE | 6mA DC/30mA rms | 32A | Charging mode two/mode three | Three-phase 11/22kW | |
| RCMU101SN-4P4E-7LK5 |  | CE | 6mA DC/30mA rms/20mA rms | 32A | Charging mode two/mode three | Three-phase 11/22kW | |
| RCMU101SN-4P6E-6MD |  | CE | 6mA DC | 42A | Charging mode two/mode three | Three-phase 11/22kW | |
| RCMU101SN-4P6E-6MK |  | CE | 6mA DC/30mA rms | 42A | Charging mode two/mode three | Three-phase 11/22kW | |
| RCMU101SN-4P6E-6MUD |  | CE/UL | CCID20/6mA DC | 40/80 | American standard charging mode Level 1/2 | American standard 0~19.2kW | |
| RCMU101SN-4P10E-6SK |  | CE | 6mA DC/30mA rms | 80A | Charging mode two/mode three | Three-phase pile |
| Series | Model | Package style | Certification/ | I△n rms [mA] | Overcurrent | Application scenario | Applicable |
|---|---|---|---|---|---|---|---|
| SN-E Series | RCMU101SN-E-4MD-D1 |  | CE | 6mA DC | Customize | Charging mode two/mode three | Three-phase 11/22kW |
| RCMU101SN-E-5SUD-D1 |  | CE/UL | CCID20/6mA DC | Customize | American standard charging mode Level 1/2 | American standard 0~19.2kW | |
| RCMU101SN-E-7LUD |  | CE/UL | CCID20/6mA DC | Customize | American standard charging mode Level 1/2 | American standard 0~9.6kW | |
| RCMU101SN-E-7LK |  | CE | 6mA DC/30mA rms | Customize | Charging mode two/mode three | Three-phase 11/22kW | |
| RCMU101SN-E-4DK-D1 |  | CE | 6mA DC/30mA rms | Customize | Charging mode two/mode three | Three-phase 11/22kW | |
| RCMU101SN-E-4MK-D1 |  | CE | 6mA DC | Customize | Charging mode two/mode three | Three-phase 11/22kW | |
| RCMU101SN-E-4SD-D1 |  | CE | 6mA DC | Customize | Charging mode two/mode three | Three-phase 11/22kW | |
| RCMU101SN-E-6SK |  | CE | 6mA DC/30mA rms | Customize | Charging mode two/mode three | Three-phase 22kW |
Certifications
Magtron’s sensors meet the highest standards for safety and performance, including certifications such as ISO 9001,ISO45001, ISO14001, and IATF 16949. These certifications guarantee that our products are compliant with both international and regional safety regulations, providing peace of mind for customers worldwide.
Product Benefits
Our Switch-Output Residual Current Sensors offer several key benefits
High Precision and Sensitivity
The iFluxgate® technology ensures precise detection of even the smallest residual currents, which is essential for protecting sensitive equipment
Modular Design for Easy Integration
Designed with modular components, these sensors can be easily integrated into existing systems and offer flexible installation options.
Self-Check Functionality
Unique to Magtron, the self-check functionality ensures the sensor remains operational without manual testing, reducing downtime and maintenance costs
Rapid Response
With a quick response time, our sensors instantly detect leakage currents and provide an immediate signal to the system to shut down, preventing damage
High Precision and Sensitivity
The iFluxgate® technology ensures precise detection of even the smallest residual currents, which is essential for protecting sensitive equipment
Modular Design for Easy Integration
Designed with modular components, these sensors can be easily integrated into existing systems and offer flexible installation options.
Self-Check Functionality
Unique to Magtron, the self-check functionality ensures the sensor remains operational without manual testing, reducing downtime and maintenance costs
Rapid Response
With a quick response time, our sensors instantly detect leakage currents and provide an immediate signal to the system to shut down, preventing damage
Automotive-Grade Quality
Certified processes and trusted collaborations that power reliable EV-charging safety.
IATF 16949
Automotive-grade QMS with robust change control, APQP/PPAP, and full traceability for consistent sensor performance.
BOSCH's Partner
Cooperation with Bosch Germany on engineering validation and applications, aligning our sensors with global OEM requirements.
Switch-Output Residual Current Sensors: How to Choose the Right Model
Magtron’s Switch-Output Residual Current Sensors are critical safety devices for electrical systems, particularly in electric vehicle (EV) charging stations, solar systems, and energy storage facilities. These sensors offer precise detection of residual currents, ensuring that electrical faults such as leakage currents are promptly detected and corrected, safeguarding the entire system.
By utilizing Magtron’s proprietary iFluxgate® technology, these sensors provide high accuracy in detecting both AC and DC leakage currents. They ensure that your system operates efficiently while maintaining the highest safety standards. This guide helps you understand how to select the ideal model of Switch-Output Residual Current Sensors based on your specific application needs.
Where Switch-Output Residual Current Sensors Are Used
Magtron’s Switch-Output Residual Current Sensors are widely used across various sectors, especially where high precision and rapid response are crucial. Below are the primary applications for these sensors:
Electric Vehicle (EV) Charging Stations
Used to monitor and detect leakage currents during EV charging, ensuring safety in both residential and public charging environments.
Solar Inverters
Employed to detect leakage in both AC and DC circuits of photovoltaic systems, preventing faults and ensuring smooth operation.
Energy Storage Systems
Used to monitor DC leakage currents in energy storage systems, helping to avoid system failures and enhance safety.
Ground Fault Detection
These sensors are essential in detecting ground faults and preventing electrical hazards in a variety of applications.
These applications require sensors that offer high sensitivity, low-zero drift, and quick response times, ensuring reliable and consistent protection for electrical systems.
Where Switch-Output Residual Current Sensors Are Used
Magtron’s Switch-Output Residual Current Sensors are widely used across various sectors, especially where high precision and rapid response are crucial. Below are the primary applications for these sensors:
Electric Vehicle (EV) Charging Stations
Used to monitor and detect leakage currents during EV charging, ensuring safety in both residential and public charging environments.
Solar Inverters
Employed to detect leakage in both AC and DC circuits of photovoltaic systems, preventing faults and ensuring smooth operation.
Energy Storage Systems
Used to monitor DC leakage currents in energy storage systems, helping to avoid system failures and enhance safety.
Ground Fault Detection
These sensors are essential in detecting ground faults and preventing electrical hazards in a variety of applications.
These applications require sensors that offer high sensitivity, low-zero drift, and quick response times, ensuring reliable and consistent protection for electrical systems.
Factors to Consider When Choosing Switch-Output Residual Current Sensors
When selecting the right Switch-Output Residual Current Sensor for your application, consider the following important factors:
Current Sensitivity and Measurement Accuracy
Different applications require different levels of current sensitivity. Magtron’s sensors provide models that detect currents as low as 6mA DC, suitable for sensitive applications such as solar inverters and residential EV charging stations. For larger power systems, a sensor with a higher current capacity, such as 42A, is needed.
Response Time
For critical applications, such as EV charging stations and solar inverters, fast detection of leakage currents is essential to avoid potential damage. Our sensors offer quick response times, ensuring that any leakage is detected and resolved immediately to protect your system.
Environmental Conditions
The operating temperature and environmental conditions are key factors in sensor selection. Magtron’s sensors operate in a wide temperature range from -40°C to 85°C, making them ideal for a variety of environmental conditions and installation environments.
Voltage Range and Power Requirements
Choosing the right voltage and power configuration is essential for compatibility with your existing system. Magtron’s sensors are designed with a 5V power supply, which is perfect for low-power applications such as home EV chargers.
Factors to Consider When Choosing Switch-Output Residual Current Sensors
When selecting the right Switch-Output Residual Current Sensor for your application, consider the following important factors:
Current Sensitivity and Measurement Accuracy
Different applications require different levels of current sensitivity. Magtron’s sensors provide models that detect currents as low as 6mA DC, suitable for sensitive applications such as solar inverters and residential EV charging stations. For larger power systems, a sensor with a higher current capacity, such as 42A, is needed.
Response Time
For critical applications, such as EV charging stations and solar inverters, fast detection of leakage currents is essential to avoid potential damage. Our sensors offer quick response times, ensuring that any leakage is detected and resolved immediately to protect your system.
Environmental Conditions
The operating temperature and environmental conditions are key factors in sensor selection. Magtron’s sensors operate in a wide temperature range from -40°C to 85°C, making them ideal for a variety of environmental conditions and installation environments.
Voltage Range and Power Requirements
Choosing the right voltage and power configuration is essential for compatibility with your existing system. Magtron’s sensors are designed with a 5V power supply, which is perfect for low-power applications such as home EV chargers.
Key Features of Magtron Switch-Output Residual Current Sensors
Magtron’s Switch-Output Residual Current Sensors come with several advanced features that make them stand out in the market:
iFluxgate® Technology
Magtron’s iFluxgate® technology offers superior accuracy and sensitivity for both AC and DC leakage current detection, ensuring optimal performance and system protection. This technology guarantees high precision even for the smallest leakage currents.
Modular Design
These sensors are designed with a modular architecture, making them easy to install and integrate into existing systems. The modular approach also simplifies maintenance and replacement.
Self-Check Functionality
A unique feature of Magtron’s sensors is the Self-Check function, which ensures the operational integrity of the sensor by continuously monitoring its performance. This feature helps reduce maintenance costs and ensures that the sensor operates correctly at all times.
High Precision Current Detection
The sensors offer high precision in detecting even the smallest residual current, providing protection for sensitive electrical equipment.
How to Choose the Right Model
When selecting the right model for your application, the following guide can help you choose based on your specific requirements:
For Single-phase Solar Inverters
For single-phase solar inverters, we recommend the RCMU101SW-2EI-K model. This sensor offers 6mA DC current accuracy, making it ideal for home solar installations.
For Three-phase EV Charging Stations
For three-phase EV charging stations, the RCMU101SW-3EI-K series is perfect. These sensors offer higher current capacities, such as 42A, and are suitable for high-power commercial charging stations.
For DC Leakage Current Detection
For DC leakage detection, the RCMU101SW-4P12K series is highly recommended. It can detect up to 42A of DC current, making it ideal for large-scale energy storage systems.
How to Choose the Right Model
When selecting the right model for your application, the following guide can help you choose based on your specific requirements:
For Single-phase Solar Inverters
For single-phase solar inverters, we recommend the RCMU101SW-2EI-K model. This sensor offers 6mA DC current accuracy, making it ideal for home solar installations.
For Three-phase EV Charging Stations
For three-phase EV charging stations, the RCMU101SW-3EI-K series is perfect. These sensors offer higher current capacities, such as 42A, and are suitable for high-power commercial charging stations.
For DC Leakage Current Detection
For DC leakage detection, the RCMU101SW-4P12K series is highly recommended. It can detect up to 42A of DC current, making it ideal for large-scale energy storage systems.
Installation and Maintenance
Magtron’s Switch-Output Residual Current Sensors are designed for 
easy installation and integration into existing systems. With their modular design and PCB plug-in installation, these sensors are compatible with various electrical systems, such as EV chargers, solar inverters, and energy storage systems.
Magtron’s sensors also feature the self-check
functionality, which continuously monitors the sensor’s health, reducing the need for regular maintenance and ensuring consistent performance.
Magtron’s Switch-Output Residual Current Sensors are easy to install thanks to their modular design and plug-in PCB installation system. These sensors integrate easily into existing EV chargers, solar inverters, and energy storage systems, making the installation process quick and straightforward.
Installation and Maintenance
Magtron’s Switch-Output Residual Current Sensors are designed for easy installation and integration into existing systems. With their modular design and PCB plug-in installation, these sensors are compatible with various electrical systems, such as EV chargers, solar inverters, and energy storage systems.
Magtron’s sensors also feature the self-check
functionality, which continuously monitors the sensor’s health, reducing the need for regular maintenance and ensuring consistent performance.
Magtron’s Switch-Output Residual Current Sensors are easy to install thanks to their modular design and plug-in PCB installation system. These sensors integrate easily into existing EV chargers, solar inverters, and energy storage systems, making the installation process quick and straightforward.
Conclusion
Choosing the right Switch-Output Residual Current Sensor is critical to ensuring the long-term safety and performance of your electrical systems. Magtron’s iFluxgate® technology provides a reliable, accurate, and efficient solution for detecting leakage currents in a variety of applications, from solar inverters to EV charging stations.
By selecting the right sensor based on your specific needs, you can ensure that your system operates safely and efficiently, protecting both equipment and users. Whether dealing with single-phase or three-phase systems, Magtron offers a solution that fits your requirements.
