The Panasonic ESE-18R12C is a surface-mount, double-pole relay designed for high-current switching applications. It has a maximum switching capacity of 18A at 30VDC and a dielectric strength of 4.0 kV between coil and contacts. The relay has a unique mechanical construction, as it is made with a non-metallic core, a coil, a bobbin and a single contact. It is typically used for applications requiring high-current switching, such as motor control, HVAC systems, security systems and other industrial control applications.