Feature: 1. Super waterproof IP65 protection class, durable and dustproof, smoothly touch feelings and fine craftsmanship. 2. Metal texture, made of high quality aluminum alloy head and stainless steel shell, comfortable hand feelings. 3. Metal emergency stop button switch emergency self‑locking power off protection stop switch, safe and reliable in use. 4. There are 2 different push button switch types available, you can choose according to your demands. 5. Silver contact and high sensitivity, electrical life more than 500,000 times, have stable and excellent performance. Specification: Item Type: Emergency Push Button Switch Material: Aluminum Alloy/Stainless Steel Switch Combination: One on one off (3 pins) two on two off (6 pins) Installation Diameter: Approx. 22mm / 0.9in Switch Rating: 5A/250V Electrical Life: More than 500,000 times Protection Grade: IP65 Contact: Silver contact Ambient Temperature: -20-50℃ 3C Rated Voltage Range: 36V and below. Package List: 1 x Switch