The IBR3SAD600 is a sealed momentary pushbutton switch from the IB series featuring a 12 mm bushing diameter and snap-in mounting design with a curved actuator. It delivers IP67 front panel sealing per IEC 60529, tactile feedback, and compact, lightweight construction suitable for harsh environments. The switch supports panel thicknesses from 0.8 mm to 1.8 mm, with a total travel of 1.9 mm and typical operating force of 7 N. Electrical specifications include a maximum current/voltage rating of 400 mA at 32 VAC or 100 mA at 50 VDC, initial contact resistance of 50 mO maximum, and an electrical life of 500,000 cycles at full load. The device operates reliably across -40°C to +85°C and resists shock (100 g), vibration (10-500 Hz, 10 g), and salt spray, making it ideal for industrial control panels, marine equipment, and outdoor instrumentation applications.