The GLX61DB with Knob; GL; Colour: black manufactured by Lovato is a heavy-duty, black colour electronic part with a single-pole, double-throw (SPDT) Centre Off function and knurled 1/4" threaded bushing. It provides a smooth, stable operation thanks to its low torque and quick-acting knob, and the panel cutout can accommodate both round and square knobs. The contacts are rated for 6A at 250VAC.