Schneider Electric (Barber Colman) AT-1104 Guard

The Schneider Electric AT-1104 is a heavy-duty cast aluminum thermostat guard designed to protect wall-mounted controls in high-traffic commercial or industrial environments. Built with a steel base plate for rigid mounting, this guard prevents physical damage and unauthorized setpoint adjustment, a critical requirement for maintaining HVAC system efficiency. With internal dimensions of 4-1/4" H x 3-1/2" W x 1-5/8" D, the AT-1104 is specifically engineered for compatibility with Barber-Colman, Robertshaw, and Schneider Electric room sensors and thermostats. The ventilated design ensures unobstructed airflow, allowing sensors to maintain accurate ambient temperature readings without thermal lag. For technicians managing facilities like schools or warehouses, the tamper-resistant HVAC guard provides a durable barrier against mechanical impact. Installation is straightforward on flat surfaces, making it a standard choice for commercial thermostat protection where long-term durability and climate control security are localized priorities.

• Heavy-Duty Construction: The cast aluminum housing and steel base plate provide superior impact resistance compared to plastic alternatives.
• Optimal Airflow: Precision-vented casing ensures the enclosed thermostat maintains accurate sensing and response times.
• Universal Mounting: Designed to fit a wide range of pneumatic and electronic wall-mounted controllers.
• Tamper Prevention: Secures equipment against unauthorized access, maintaining energy setpoints and reducing system wear.

Is the AT-1104 compatible with non-Schneider thermostats?
Yes, provided the thermostat footprint fits within the internal dimensions of 4-1/4" H x 3-1/2" W x 1-5/8" D, it can accommodate various pneumatic and digital controls.

How does this guard affect temperature accuracy?
The ventilated aluminum chassis is designed to allow natural convection, ensuring that the sensor inside detects the actual room temperature without significant delay.

Does this guard include the mounting hardware?
Standard units include the base plate and cover; however, specific wall anchors should be selected based on the mounting surface (drywall, masonry, or junction box).

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.