How do I verify if this limit switch is defective

Dual-Pole Switching: The 2PDT configuration allows for simultaneous control of two separate circuits

The unit comes with a captivated screw already integrated into the dial

Featuring a 40/5 MFD capacitance

protecting against carbon monoxide risks

Schneider Electric (Barber Colman) 20-881 Wrench How do I verify ifThe Schneider Electric (Barber Colman) 20 881 Wrench is a specialized dual purpose tool engineered for precision field service on pneumatic control systems. Designed to replace the legacy N2 4 tool, this wrench features a 1 16" hex head and a 1 4" hex head, providing the exact dimensions required for pneumatic thermostat calibration and securing cover screws. This tool is essential for technicians managing Barber Colman 2000 series thermostats and