If we had used a normally-closed pushbutton switch instead, the behavior would be exactly opposite. The lamp would energize if the switch was left alone, but it would turn off if anyone pressed the switch. Normally-closed switch contacts are sometimes referred to in the electrical industry as...
normally closed push button switch Mode of connection Screw terminal Operation Tpye Momentary Operational travel 1.5mm Contact Silver plated gold Panel thinckness 1-6mm Contact configuration Normally closed Show more Lead time Quantity (pieces)1 - 12 - 100101 - 200> 200 ...