Allen Bradley 966210-01 12-120V AC Output Module 1771-OAD

Allen-Bradley 1771-OAD 12-120V AC Output Module

The Allen-Bradley 1771-OAD is a 16-point AC output module designed for use with PLC-5 systems. It provides reliable control of AC loads within a voltage range of 10 to 138V AC at frequencies between 47 and 63 Hz. Each output channel can handle up to 2 Amps, with a maximum module current of 8 Amps.

Key Features

• Output Voltage Range: 10 to 138V AC at 47-63 Hz
• Output Current Rating: 2A per output, not to exceed 8A per module
• Surge Current: 25A per output for 100ms, repeatable every 1 second
• On-State Voltage Drop: 1.5V at load currents less than 50mA; 5.8V maximum at load currents greater than 50mA
• Power Dissipation: Minimum 1.5W, maximum 13W
• Thermal Dissipation: Minimum 5.13 BTU/hour, maximum 48 BTU/hour
• Signal Delay: Off-On and On-Off delay of 10ms at 50 Hz and 8.3ms at 60 Hz (zero crossing)

Installation and Compatibility

The 1771-OAD module is compatible with the following I/O chassis:

• 1771-A1B through -A4B or later I/O chassis
• 1771-AM1, -AM2 chassis

It is not compatible with 1771-A1, 1771-A2, and 1771-A4 chassis. The module requires 295mA from the chassis power supply and utilizes zero-crossing technology to minimize electrical noise and enhance the longevity of connected devices.

Wiring and Fusing

For wiring, the module supports a 14-gauge wire size with a maximum insulation of 3/64 inches. It uses the 1771-WH (standard) or 1771-WHF (fused) field wiring arms. The recommended fuse rating is 10 Amps at 250 Volts.

Applications

The 1771-OAD module is ideal for industrial automation applications requiring precise control of AC loads, such as motors, solenoids, and lighting systems. Its robust design and compatibility with PLC-5 systems make it a reliable choice for various control tasks.