P4 series momentary single- or two-step action pushbuttons actuate one or more OTTO B3 double-break basic switches. 

P4 pushbuttons come with one- to four-pole configurations and various case styles.

B3 basic switches are military-qualified to MIL-PRF-8805/101 or /118. All case styles, except 1 and 4, feature OTTO’s patented “rolling sleeve” principle and are sealed to IP6K4.

Ask OTTO about custom versions of these auxiliary actuators, which operate up to 10 basic switches in a single assembly, and special push-pull, shrouded or vandal-resistant button options.

Download an overview of OTTO pushbuttons.