RH3 Series High Voltage Relay 

RH3 Series High Voltage Relay 

The RH3 series high voltage relays have been developed based on the RH1 model. While maintaining the same ultra-compact capsule-style form factor and a voltage rating of 3.5kV, this series represents a significant performance upgrade. By utilizing molybdenum/tungsten contacts, the RH3 aims to deliver more reliable and powerful performance in both make and break operations. 

Thanks to these enhancements, the RH3 series offers significantly improved switching capability compared to the RH1. However, due to a slight increase in contact resistance, the continuous current carry rating is limited to 18A. Despite this limitation, it still delivers an impressive performance for such a compact size. 

The relay features a Single Pole Double Throw (SPDT) configuration. This design integrates both Normally Open (NO) and Normally Closed (NC) contact sets into a single unit, providing great flexibility in circuit design. When coil power is applied or removed, continuity is transferred between the two contacts. 

The RH3 series high voltage relay is ideal for applications requiring high-performance switching in space-constrained systems. Its robust construction and optimized contact materials ensure reliable operation. Thanks to its high voltage tolerance, it can be safely used in both industrial systems and sensitive RF circuits.