Allen Bradley AB 1771-0A 96026874 AC Output Module 1771-OA /B

The Allen-Bradley 1771-OA/B is an AC output module designed for seamless integration within the 1771 I/O chassis, providing reliable control over various AC devices in industrial automation systems.

Key Features

• Output Channels: Equipped with 8 output channels, each capable of handling up to 1.5 Amperes, with a total module capacity of 6 Amperes.
• Voltage Range: Operates within a voltage range of 92 to 138 Volts AC at frequencies between 47 and 63 Hertz.
• Surge Handling: Each output can manage surge currents up to 4 Amperes for 8.3 milliseconds at 120 Volts AC, repeatable every second.
• Minimum Load Requirement: Requires a minimum load current of 50 milliamperes per output at 120 Volts AC, 60 Hertz.
• Signal Delay: Features an off-to-on signal delay of 1 millisecond and an on-to-off delay of 8.3 milliseconds at 60 Hertz.

Power and Thermal Specifications

• Backplane Current: Draws 210 milliamperes at 5 Volts DC from the I/O chassis backplane.
• Power Dissipation: Exhibits a maximum power dissipation of 10.7 Watts and a minimum of 1.1 Watts.
• Thermal Dissipation: Generates thermal dissipation ranging from 3.4 to 36.6 BTU per hour.

Installation and Wiring

• Field Wiring Arm: Utilizes the 1771-WA field wiring arm, facilitating easy connections and allowing module removal without disconnecting wiring.
• Wiring Specifications: Supports 14–22 AWG stranded copper wire rated at 75°C or greater, with a maximum insulation of 3/64 inch (1.2mm).
• Keying: Employs keying between positions 4 and 6, and 12 and 14 to ensure correct module placement.
• Fusing: Each output is protected by a 2 Amp, 250 Volt fuse to safeguard against overcurrent conditions.

Environmental Conditions

• Operating Temperature: Designed to function within a temperature range of 32 to 140°F (0 to 60°C).
• Storage Temperature: Can be stored in temperatures ranging from -40 to 185°F (-40 to 85°C).
• Humidity: Operates effectively in relative humidity conditions of 5 to 95% non-condensing.

Applications

The 1771-OA/B module is ideal for controlling AC devices such as motor starters, indicators, and solenoids, making it a versatile component in various industrial automation applications.

Additional Information

• Module Dimensions: Measures 56 x 12 x 75.5 mm and weighs approximately 150 grams.
• Enclosure Type: Classified as open style, requiring appropriate enclosure for environmental protection.
• Certifications: UL Listed for Industrial Control Equipment and certified for Class I, Division 2, Group A, B, C, D Hazardous Locations.

The Allen-Bradley 1771-OA/B AC Output Module offers robust performance and reliability, ensuring efficient control of AC devices within your automation system.