EMERGENCY STOP BUTTON: Industrial quality mushroom head type button that serves as an emergency stop pushbutton or E-Stop, a fail-safe control power switch that provides both safety for the machinery and for the person using it. BUTTON: Highly visible in color, size and shape with a mushroom head design to provide an easy and fast access to it, easy to operate in emergency situations. EMERGENCY BUTTON: Useful for different kinds of industrial installations. Widely used for control of electronic and/or magnetic starter, contactor and relay, or other similar circuit. Can be used in mount panels, stations, machines and consoles of textile equipment and operating rooms or distribution boxes for ships, airplanes or cities. PUSH BUTTONS: Includes 4 screw terminals and 1 Normally Open (NO) and 1 Normally Closed (NC) contacts. It uses a momentary action type mechanism or a latching system that requires a turn-to-release once it has been pushed. Applicable in the electric circuit of AC 50HZ 380V, DC220V electro-magnetic starters, relays, contactors, electric controls, etc. INDUSTRIAL BUTTON: LA38-11M, LA38-11ZS. Mount Hole Diameter: 22 mm / 0.87 " (7/8 "). Fit Panel Thickness: Max 4 mm / 0.16 ". Working AC Frequency: 50Hz-60Hz. AC 50Hz 380V, DC220V. 250VAC 3A SPDT NO NC. Contact Resistance: 50Ω. Insulation Resistance: 100MΩ. Overall Size: 75 mm x 35 mm. Material: ABS. Color: Red/Green. Industrial quality mushroom head type button that serves as an emergency stop push button or E-Stop, a fail-safe control switch that provides both safety for the machinery and for the person using it. Comes with a spring return or a stay-put action type. Highly visible in color and shape with a mushroom head design to provide an easy and fast access to it, easy to operate in emergency situations. Useful for different kinds of industrial installations. Widely used for control of electromagnetic starter, contactor and relay, or other circuit for controlling use. Can be used in mount panels, machines and consoles of textile equipment and operating rooms or distribution boxes for ships, airplanes or cities. Includes 4 screw terminals and 1 Normally Open (NO) and 1 Normally Closed (NC) contacts. It uses a momentary action type mechanism or a stay-put system that requires a turn-to-release once it has been pushed. Specifications Model: LA38-11M, LA38-11ZS Mount Hole Diameter: 22 mm / 0.87 " (7/8 ") Fit Panel Thickness: Max 4 mm / 0.16 " Working AC Frequency: 50Hz-60Hz AC 50Hz 380V, DC220V 250VAC 3A SPDT NO NC Contact Resistance: 50Ω Insulation Resistance: 100MΩ Overall Size: 75 mm x 35 mm Material: ABS Color: Red/Green Applicable in the electric circuit of AC 50HZ 380V, DC220V electro-magnetic starters, relays, contactors, electric controls, etc.