2085-IA8

The Allen Bradley 2085-IA8 is an AC discrete input module belonging to the Micro 850 series. With a total of eight input channels, this unit operates at a specified voltage class of 120 volts AC, which allows it to monitor inputs effectively across various systems. It functions efficiently within an operating voltage range of 74 to 120 volts AC.

The rated input current for this module is measured at 12.5 mA while at the full 120 volts AC. In terms of functionality, it requires a minimum ON current of 5 mA to activate at 74 volts AC. The maximum OFF current falls at 2.5 mA, while the maximum OFF voltage reaches 20 volts AC, ensuring controlled performance.

Input resistance is capped at a maximum of 22.2 kΩ, contributing to its operational reliability. This input module can experience a peak inrush current of 450 mA, allowing for brief surges without damage. Signal processing is efficient, with a signal delay pegged at a maximum of 20 milliseconds, which is critical for timely responses in automation tasks.

Channel isolation boasts a continuous reinforced rating of 150 volts between inputs, enhancing safety and reducing the potential for errors in measurement. For additional durability, the dielectric strength is rated at 1950 volts DC for a duration of 60 seconds, providing assurance against accidental overvoltage conditions. The backplane of this module operates at a current draw of 150 mA at 5 volts DC, consolidating its requirements for integration into the system.