OTTO Controls basic switch B3S series sealed

OTTO’S sealed, double break B3S basic switch is designed for demanding applications that require a reliable seal. Sealed to IP68S, the B3S basic switch has a high cycle life – tested to 1 million cycles at logic level. The switch is also capable of handling uo to an 8 amp resistive load.

Great double break circuit versatility is available with your choice of normally open (Form X), normally closed (Form Y), 3 terminal SPDT (Form C) or 4 terminal SPDT (Form Z).

The B3S is designed for use in places where space is limited, with or without lever actuators. In additiona, they can be used as part of pushbutton, trigger and toggle switches that require sealing for demanding pallications. Multiple terminal styles and wire lead options are available.


  • Sealed to IP68S
  • Double break circuit
  • Logic level switching option tested to 1 million electrical cycles
  • 0.200” switch width
  • Choice of 11 standard terminal styles or wire leads
  • Lever actuators are also available
  • RoHS compliant

Documents & downloads

Data sheet B3SStandard Switch GuideBasic Switches Overview
Daniel Jennen
Daniel Jennen
Sales Director, Vice President +49 2152 8955-210