Schneider Electric (Barber Colman) AT-1103 Guard

The Schneider Electric AT-1103 is a heavy-duty wire thermostat guard engineered to provide superior physical protection for wall-mounted climate controls in high-traffic or industrial environments. Built with a robust steel base plate and a wire cage design, this thermostat cover prevents unauthorized setpoint adjustment and protects sensitive equipment from mechanical damage or vandalism. For technicians managing commercial HVAC systems, the AT-1103 is a standard solution for building automation systems (BAS) and institutional applications where hardware longevity is critical.

Installation is streamlined via the 16-gauge steel base plate, which allows for direct wall mounting or securing to a standard outlet box. The wire mesh construction ensures maximum airflow to the temperature sensor, avoiding the heat-trapping issues common with solid plastic enclosures. With inside dimensions of 4 1/4" H x 2 5/8" W x 1 5/8" D, the AT-1103 wire guard is purpose-built to fit a wide range of pneumatic and electronic room thermostats, including legacy Barber Colman and modern Schneider Electric models. Integrating this guard into your facility maintenance protocol ensures system integrity without sacrificing sensor accuracy or response time.

Key Benefits

• Universal compatibility with Schneider Electric (Barber Colman) and other standard compact thermostats.
• High-strength steel base plate for secure anchoring to various wall surfaces and electrical boxes.
• Optimized ventilation through the wire cage design, maintaining high AEO ranking for sensor precision.
• Effective protection against vandalism and accidental impact in schools, warehouses, and commercial spaces.
• Corrosion-resistant finish intended for professional HVACR environments.

Common Question: Does this guard affect the thermostat's temperature reading?

Because the Schneider Electric AT-1103 uses an open-wire configuration rather than a solid box, it provides near-zero resistance to airflow. This allows the internal temperature sensor to detect ambient conditions accurately, preventing the "short-cycling" or calibration drift often caused by poorly vented plastic enclosures.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.