The RHS16225D is a versatile heatsink assembly designed to dissipate heat from solid state relays. It offers a thermal resistance of 1.3°C/W and is constructed from aluminum with a silver anodized finish. This RoHS-compliant heatsink can accommodate a maximum of three 1-phase SSRs or a single 3-phase SSR, providing flexibility for various system configurations. With dimensions of 162 x 100 x 25 mm, it supports both panel and thru-wall mounting, ensuring effective thermal management for SSRs in industrial control applications.