Banner Engineering SSA-EB1PL2-02ECQ5A Emergency Stop Switches SSA-EB1 30 mm Mount Emergency Stop Push Button; Non-Illuminated Base; Illuminated (PUSH ON) 40 mm Actuator; IP65; Contacts: 2NC; 5-pin M12 Integral QD; Safety BUS Node Compatible CH1=pins1&2 CH2=pins4&5