Press release
Industrial Pre-charge Resistors for Energy Systems | RMS
RQO Series - High Power Capacitor Discharge Resistors
The RQO series belongs to the Power Film Resistor product group and is designed as a high power capacitor discharge resistor solution. Supporting power ratings from 0.5 to 75k and resistance values up to 490Ω, the RQO series delivers reliable energy discharge performance in demanding power systems. With supply voltage options of 5 and 10, these pre-charge resistors help improve electrical stability and system safety during capacitor charging and discharge operations.
AQL Series - AEC-Q200 Certified Pre-Charge Resistors
The AQL series features AEC-Q200 certified wire wound resistors specifically developed for automotive applications. These ceramic cased pre-charge resistors are widely used as inrush current limiting resistors in EV, HEV, and PHEV Power Relay Assemblies (PRA). Designed to meet the automotive industry's strict reliability standards, the AQL series supports power ratings from 20W to 80W with resistance values up to 260Ω and supply voltage tolerance of ±5. Their robust ceramic construction ensures stable and dependable operation in electric vehicle power systems.
RQA Series - Ceramic Encased Wire Wound Resistors
The RQA series consists of ceramic encased wire wound resistors designed for reliable current control and heat resistance. With power ratings ranging from 0.1 to 100k and resistance values of 260Ω and 400Ω, the RQA series delivers stable electrical performance in industrial and automotive applications. These pre-charge resistors support supply voltage tolerances of ±5 and ±10, making them suitable for high-performance electrical systems requiring dependable protection.
RQR Series - Durable Wire Wound Pre-Charge Resistors
The RQR series offers ceramic encased wire wound resistor solutions for efficient current limiting and power management applications. Supporting power ratings from 0.1 to 75k and resistance values of 260Ω and 490Ω, the RQR series is designed to maintain stable resistance characteristics under demanding operating conditions. Available with supply voltage tolerances of ±5 and ±10, these resistors provide excellent durability and consistent performance.
RQR15~40 Series - High-Power Ceramic Encased Resistors
The RQR15~40 series is engineered for higher power handling applications, supporting power ratings from 15W to 40W. These ceramic encased wire wound resistors feature resistance ranges from 0.01 to 54k with supply voltage tolerances between ±0.5 and ±10. Their strong thermal performance and durable structure make them ideal for industrial power systems and energy management equipment.
RQB Series - Reliable Ceramic Encased Wire Wound Resistors
The RQB series provides dependable ceramic encased wire wound resistor solutions for various electrical and industrial applications. With power ratings from 0.1 to 100k and resistance values of 260Ω and 400Ω, these pre-charge resistors deliver stable current control and reliable thermal performance. The series supports supply voltage tolerances of ±5 and ±10 for flexible integration into different power systems.
Importance of Pre-Charge Resistors in Modern Electrical Systems
Pre-charge resistors play a critical role in preventing excessive inrush current during the startup of high-voltage systems and capacitor-based circuits. They help protect sensitive components, improve system reliability, and enhance operational safety in electric vehicles, industrial automation, renewable energy systems, and power electronics. Their ability to absorb sudden electrical surges contributes to longer equipment lifespan and stable electrical performance.
If you are looking for pre-charge resistors, you can find them at RMS.
Click here to learn more about RMS products.
View more: Industrial Pre-charge Resistors for Energy Systems
RMS Co., Ltd.
RMS Co., Ltd. is a manufacturer of high-quality pre-charge resistors designed for industrial electronics, automotive systems, EVs, HEVs, PHEVs, and advanced power management applications.
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