RV8H Ultra-Slim Interface Relays IDEC RV8H Ultra-Slim Interface Relays provide a compact solution for general-purpose relay requirements. The IDEC RV8H Relays measure 71mm in height from the DIN rail and include a 6mm slim-width version with 6A contact capacity. Gold-clad contacts provide high contact reliability. RV8H relays are ideal for programmable logic controllers (PLCs) and other controller outputs, industrial automation, panel builders, assembly machine applications, and other applications that require a high switching capability in a compact space.