AC6A3BD Fireye Actuator

Overview

The Fireye AC6A3BD is a precision-engineered 120V rotary actuator designed for demanding industrial burner management and combustion control applications. As a direct-coupled, modulating motor, it provides the mechanical link necessary to convert electrical control signals into physical motion for air dampers and fuel valves. Keypad programmable and featuring solid-state electronics, this actuator ensures accurate positioning to maintain optimal air-to-fuel ratios, thereby maximizing combustion efficiency and safety in systems such as boilers, burners, and industrial furnaces.

Features

• Solid-state electronics for reliable, continuous performance in industrial environments.
• Keypad programmable interface with an LED display and membrane keys for local manual control and parameter setting.
• Four-position keypad orientation (upright, 90 degree RH, 270 degree LH, or inverted) to accommodate various mounting needs.
• Multiple input support including 4-20mA, 0-10Vdc, and isolated digital contacts for flexible integration.
• Two auxiliary contacts provided for position feedback to the burner management system.
• Selectable clockwise or counterclockwise rotation with a adjustable travel range.
• NEMA 4 rated construction for protection against environmental factors.

Specifications

• Model Number: AC6A3BD
• Operating Voltage: 120 VAC (+10%, -15%), 50/60 Hz
• Stroke/Rotation: 75 degrees (adjustable up to 90 degrees)
• Keypad Position: 90 degrees Right-Hand (RH)
• Torque: 2.3 Nm (20 lb-in) running; 3.9 Nm (35 lb-in) at stall
• Speed: 18 seconds for 75 degree travel @ 60Hz
• Operating Temperature: -20 to +60 C (0 to 140 F)
• Weight: Approximately 3.37 lbs (1.53 kg)
• Protection: NEMA 4 / IP66 enclosure rating

Applications

The AC6A3BD is primarily used in industrial and commercial combustion systems to regulate process temperatures by controlling air and gas flow. It is typically mounted directly to butterfly valve stems or damper shafts. Common applications include industrial burner management systems, combustion air damper control, and valve regulation in boilers and large-scale heating plants. It is compatible with Fireye burner and combustion controls, serving as a critical component for achieving precise firing rate control.