The 30-103 is a butt contact pushbutton switch designed for snap-in panel mounting with a yellow button color option. It features a sealed SPST (Single Pole Single Throw) momentary contact configuration with gold-plated brass contacts and a butt contact system for reliable electrical connection. The switch is constructed with 45% glass-filled nylon for the button, housing, base, and plunger, with tinned music wire springs and silicone rubber seals for durability and environmental protection. It offers 500,000 actuations cycles, operates reliably from -40°C to +80°C, and is rated for 150 milliamps at 24 VDC with a maximum contact resistance of 25 milliohms. This switch is ideal for industrial control panels, instrumentation, and applications requiring sealed, momentary-contact switching with high reliability and long operational life.