It serves as a direct drop-in replacement for several older part numbers

Legacy Support: Functionally replaces discontinued part numbers including 0161P00030

High-volume damper shaft sizes including 1/2"

Enhanced Thermal Resistance: Engineered to maintain tolerances under high-heat conditions in the furnace cabinet

The high-clarity plastic allows technicians and facility managers to monitor thermostat readouts without opening the unit

Schneider Electric (Barber Colman) AT-505 Mounting Base It serves as a directThe Schneider Electric (Barber Colman) AT 505 Mounting Base provides a professional grade solution for surface mounting commercial thermostats and HVAC sensors. Designed for the legacy Barber Colman product line, this AT 505 surface mounting base is essential for clean installations where wall box mounting is impractical or unavailable. With housing dimensions of 4 5 8" H x 3 1 8" W x 1" D, the beige wall plate offers a low profile aesthetic that