this thermal sensing component monitors the draft hood for abnormal flue gas spillage resulting from chimney obstructions or downdrafts

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

Compatible with Maxitrol RV91 and 210E Series gas regulators

Field Efficient: Simplifies the upgrade process on 1-inch to 2-inch valve sizes

Schneider Electric (Barber Colman) 20-881 Wrench this thermal sensing component monitorsThe 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