AC6B2BA Fireye Actuator

Overview

The Fireye AC6B2BA is a high-precision, keypad-programmable rotary actuator designed as a direct-coupled modulating motor for industrial burner and valve control systems. Operating at 230V, this actuator is engineered to regulate process temperatures by connecting directly to a butterfly valve stem, ensuring accurate positioning without the slop associated with mechanical linkages. This specific model features an inverted keypad orientation, making it ideal for specialized mounting configurations where wiring connections must be at the top of the unit. It serves as a modern, reliable replacement for legacy and obsolete programmable actuators, such as those from the Eclipse PRA/ACT series.

Features

• Solid-state electronics for reliable, long-term performance in demanding environments.
• Integrated LED display with membrane keys for local manual control and parameter adjustment.
• Keypad programmable settings for minimum and maximum travel positions and rotation direction.
• Multiple positioning inputs including 4-20mA, 0-10Vdc, and isolated digital switch inputs.
• Two auxiliary contacts provided for precise position feedback to external monitoring systems.
• Selectable clockwise or counterclockwise rotation to suit various valve configurations.
• NEMA 4 rated construction for superior protection against dust and water.

Specifications

• Model Number: AC6B2BA
• Supply Voltage: 230VAC (+10%, -15%), 50/60 Hz
• Power Consumption: 5VA (Internal)
• Torque: 2.3 N-m (20 lb-in); 3.9 N-m (35 lb-in) at stall
• Stroke: 0 to 90 degrees
• Speed: 18 seconds for 90-degree rotation at 60Hz
• Keypad Orientation: Inverted (for top-side wiring connections)
• Wiring Connector: 3/8 inch straight liquid-tight conduit
• Operating Temperature: -20 degree C to 60 degree C (0 degree F to 140 degree F)
• Humidity: 5% to 95% RH, non-condensing
• Display Accuracy: +/- 1.5 degrees

Applications

The Fireye AC6B2BA is primarily used in commercial and industrial combustion systems to provide modulating control of gas and air valves. It is typically paired with electronic burner management or parallel positioning controllers to optimize boiler efficiency and maintain precise thermal profiles. Its inverted design is specifically intended for installations with limited space or specific piping layouts where standard upright or horizontal mounting is not feasible. Common applications include fuel-to-air ratio control, process temperature regulation, and high-precision valve automation.