Schneider Electric AS-B833-016 Programmable Logic Controller Module

Schneider Electric AS-B833-016 is a Modicon 800-Series discrete input module offering 16 24 VDC True Low inputs, arranged as two 8‑point groups for convenient rack mounting in an 800‑Series I/O chassis. It accepts field signals in the 24–28 Vdc range, with a maximum continuous input rating of 30 Vdc and a surge tolerance of 500 Vdc for 3 ms, making it suitable for industrial environments. Each input presents ON resistance of less than 200 Ω and OFF resistance greater than 10 kΩ, with a wetting current of about 6 mA at 24 Vdc to ensure reliable sensing. The module features a fast, deterministic response time of 11 ms for both OFF→ON and ON→OFF transitions. Electrical power for the module’s logic requires +5 V at 27 mA and +4.3 V at 2 mA, while the external field supply is 24 ± 4 Vdc at up to 300 mA (excluding the load current). Termination is via the AS-8534-000B833-016 compatible connector. As part of the 800-Series I/O family, the AS-B833-016 is designed to translate 24 V field inputs into PLC-friendly signals for Modicon controllers, enabling reliable digital input monitoring in automation panels and process control systems.