








GYL9‑B Type B RCD Residual Current Device
GEYA GYL9-B Type B RCD is a high-performance residual current device designed for advanced electrical protection in solar PV systems, EV charging stations, battery energy storage systems, and industrial applications.
With the ability to detect AC residual currents, pulsating DC currents, and smooth DC leakage currents, this Type B RCD provides reliable protection for modern power electronic equipment and renewable energy systems.
Designed for safe operation, high reliability, and easy DIN rail installation, the GYL9-B Type B RCD is an ideal solution for applications requiring enhanced residual current protection.
◉ Advanced Type B Protection: Detects AC, pulsating DC, and smooth DC residual currents to provide comprehensive electrical safety protection.
◉ Solar PV & EV Charging Compatibility: Designed for photovoltaic systems, EV chargers, and applications with DC leakage current risks.
◉ Reliable Safety Performance: Effectively protects electrical systems against leakage currents, insulation faults, and abnormal conditions.
◉ Wide Application Range: Suitable for residential, commercial, industrial systems, BESS, and power electronic equipment.
◉ Compact DIN Rail Design: Space-saving modular structure enables easy installation in distribution boards and control panels.
Technical Specifications of GYL9-B Type B RCD
GYL9-B Type B RCD Overview
The GEYA GYL9-B Type B RCD is a high-performance residual current device designed to provide advanced electrical protection for modern power systems. It is specially developed for applications where both AC residual currents and DC leakage currents may occur.
Compared with standard residual current protection devices, the Type B RCD can detect smooth DC residual currents, making it an ideal protection solution for solar photovoltaic systems, EV charging stations, battery energy storage systems, and other power electronic applications.
With reliable residual current detection technology, stable electrical performance, and a compact modular design, the GYL9-B Type B RCD helps improve system safety and protect equipment from electrical faults caused by leakage currents.
The device is suitable for residential, commercial, and industrial electrical distribution systems requiring enhanced protection and reliable operation.
Outline Overall And Installing Dimensions

GYL9-B Type B RCD Technical Specifications
GYL9-B Type B RCD Technical Specifications
| Technical Parameters | Parameter Value |
|---|---|
| Rated Voltage (Un) | 230/400V, 240/415V |
| Rated Current | 16A, 20A, 25A, 32A, 40A, 63A, 80A, 100A |
| Rated Insulation Voltage (Ui) | 500V |
| Rated Impulse Withstand Voltage (Uimp) | 4kV |
| Rated Residual Operating Current (IΔn) | 0.03A, 0.1A, 0.3A |
| Pole Number | 1P+N, 3P+N |
| Residual Current Operating Type | Type B |
| Operating Frequency | 50/60Hz |
| Rated Limited Short-Circuit Current (Inc) | 6000A, 10000A |
| Mounting Method | TH35-7.5 Type Standard Guide Rail |
| Mechanical Life | 10000 times |
| Electrical Life | 4000 times |
Applications of GYL9-B Type B RCD
Applications of GYL9-B Type B RCD
- Solar PV Systems:
Provides reliable residual current protection for photovoltaic systems, solar inverters, and renewable energy applications. - EV Charging Infrastructure:
Suitable for electric vehicle charging stations requiring Type B residual current protection against DC leakage currents. - Battery Energy Storage Systems (BESS):
Ensures electrical safety protection for energy storage systems and related power conversion equipment. - Industrial Electrical Systems:
Designed for industrial equipment, automation systems, and applications with power electronic devices. - Commercial and Building Power Distribution:
Suitable for distribution boards and electrical installations requiring enhanced residual current protection. - User Manual
GYL9-B Type B RCD FAQs
Get a Quote for GYL9-B Type B RCD
Ensure reliable electrical protection with GEYA GYL9-B Type B RCD, designed for solar PV systems, EV charging stations, battery energy storage systems, and modern electrical applications with DC leakage risks.
GEYA provides high-quality Type B residual current protection solutions with professional technical support, stable product performance, and flexible solutions for distributors, installers, and project partners worldwide.
Contact GEYA today to get product specifications, quotation details, and customized electrical protection solutions for your projects.





