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3 pin SPDT micro switch compatibility supports low voltage control and signal tasks, compatible with 3D printers, compatible with CNC machines, compatible with household appliances and DIY controllers. Button actuator SPDT function enables quick make and break switching at 5A 125V for control logic, three terminals offer common normally open and normally closed paths for sensing, interlock, and trigger circuits. Endstop and limit uses include 3D printer axes, CNC travel stops, small robotics bump sensors, control panels, and model building, delivering crisp tactile actuation for accurate position detection in compact spaces. Compact mini size fits tight enclosures and tool heads, black plastic housing with metal contacts supports consistent performance, easy screw or adhesive mounting on brackets or panels for workshop, lab, and classroom builds. Simple wiring with three pin terminals speeds installation and replacement during appliance repair and DIY upgrades, supports AC control and low voltage DC signals in home projects, hobby labs, and light automation tasks.