Diameter: drilling diameter 12.5mm. Various: single-pole changeover push button. Lifespan: 30000 cycles. Switch mode: 1SPDT (ON-ON). Switch type: push-button. RoHS: yes. Number of stable positions: 2. Assembly/installation: screw. Series: 8600. Max load: 3A 250VAC, 4A 30VDC. Article family: switch. Operating temperature: -40...85°C. Light Source: IP40. Note: connections 2-3 in contact (at rest), 1-2 closed (at work). Function: normally open contact (NO)