B3F-3150 is a pushbutton switch produced by Omron. It is a key-operated switch which can be used to turn a device or circuit on and off. It is rated as having an insulation voltage of 250V, a contact form of 1A (SPST-NC), and an electrical life of 50,000 cycles. It is a single key operation switch that is suitable for a variety of applications where a momentary contact operation is required. The switch has an IP67 degree of protection and is resistant to dust and water.