Schneider Electric (Barber Colman) AT-11-500 Thermostat Cover Precise Setpoint Accuracy: Factory-calibrated to

Precise Setpoint Accuracy: Factory-calibrated to 0

crank arms

requiring a P322055 replacement to restore operation

its 250 PSI and 400°F rating makes it suitable for many low to medium pressure steam applications and boiler water columns

facilitating proper airflow management and preventing short-cycling

Schneider Electric (Barber Colman) AT-11-500 Thermostat Cover Precise Setpoint Accuracy: Factory-calibrated toThe Schneider Electric AT 11 500 Thermostat Cover is a professional grade HVAC enclosure engineered for the rugged demands of commercial and industrial environments. This dual window thermostat cover provides critical protection for sensitive controls against unauthorized tampering, dust accumulation, and physical impact. It is the direct OEM replacement for legacy Barber Colman AT 11 399, AT 21 403, and AT 24 399 models. Designed primarily for the