Blue Sea 7493 360 Panel Rocker Switch - DPDT - ON-(ON). Durable Marine Rocker Switch for Precision Control. The Blue Sea 7493 360 Panel Rocker Switch - DPDT - ON-(ON) is purpose-built for integration into Blue Sea's innovative 360 Panel System. Featuring a Double Pole, Double Throw (DPDT) configuration with momentary ON-(ON) action, this switch provides reliable, precise control for trim tabs, windlasses, dual battery banks, or lighting circuits. Its compact snap-in design and wire-lead terminal