Schneider Electric (Barber Colman) AT-505 Mounting Base a pitted or welded contactor

a pitted or welded contactor is often the culprit behind high-voltage circuit failure

OEM Compatibility: Precision-manufactured to match Conbraco 20-series gauge specifications

Key Benefits Efficient Contaminant Removal: Utilizes HEPA Microflex technology to trap fine particulates

Common Questions & Troubleshooting What causes a limit switch like the 47-21711-08 to trip frequently

Proactively addressing a tripped 275F limit is essential to prevent unsafe combustion conditions

Schneider Electric (Barber Colman) AT-505 Mounting Base a pitted or welded contactorThe 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