The model PB features an industrial grade 1-1/2” mushroom button with 7 Amp DPST (NO/NC) contacts. It is water proof (NEMA4) and includes 12-24 VDC bi-color illuminations. The button itself illuminates green from a multi-chip LED and there is also a super-bright red LED. Momentary or alternate (Model PBA) contacts may be chosen and the switch is UL Listed. The model PB is available on single gang plates only and is delivered with an indoor backbox.