Product Overview
The Schneider AS-B873-011 is a reliable analog input module from the Modicon series, designed for precise signal acquisition in industrial automation systems. This module features four analog input points, operating at a voltage rating of 10 V and a current range of 4 mA to 20 mA. Its robust construction ensures stable performance across a wide range of environmental conditions, making it a suitable replacement for older Modicon input modules or an upgrade for systems requiring higher reliability.
Technical Specifications
| Specification |
Value |
| Manufacturer |
Schneider Electric |
| Product Line |
Modicon |
| Part Number |
AS-B873-011 |
| Weight |
2.94 lbs (1.33 kg) |
| Product Type |
Input Module |
| Number of Points |
4 |
| Input Type |
Analog |
| Voltage Rating |
10 V |
| Minimum Current Rating |
4 mA |
| Maximum Current Rating |
20 mA |
| Maximum Ambient Temperature |
60 °C |
| Minimum Ambient Temperature |
0 °C |
| Operating Humidity |
80% RH (non-condensing) |
| Storage Humidity |
80% RH (non-condensing) |
| Max Operating Altitude |
1000 m |
| Protection Class |
IP20 |
Industry Applications
The Schneider AS-B873-011 module excels in monitoring analog signals such as temperature, pressure, and flow in manufacturing plants. In a typical upgrade scenario, replacing older non-linear input modules with this unit improves accuracy and system responsiveness. For instance, in a chemical processing line, the 4–20 mA input capability provides reliable transmission over long distances without signal degradation. The wide operating temperature range of 0–60 °C allows deployment in unconditioned factory floors or enclosures.
Installation and Setup
Mount the Schneider AS-B873-011 securely in a Modicon rack or backplane. Ensure the ambient temperature stays within 0–60 °C and humidity below 80% RH. Wire analog signals using shielded twisted-pair cables to minimize electromagnetic interference. Verify that the voltage supply matches the 10 V rating and that current loop signals fall between 4 mA and 20 mA. After insertion, perform a continuity check on all four input channels before powering up the system.
Maintenance and Reliability
Inspect the Schneider AS-B873-011 module periodically for dust accumulation, as IP20 protection does not prevent all particle ingress. Clean air vents gently with dry compressed air at low pressure. Check terminal connections for tightness every six months. The lack of moving parts reduces mechanical wear, ensuring long service life. By adhering to these simple checks, you maximize the return on investment for your control system upgrade.
Selection Guide and Purchasing Advice
Before purchasing, confirm compatibility with your existing Modicon backplane and controller. The AS-B873-011 is a direct replacement for many 4-point analog input modules in the Modicon family. Verify that your system’s analog input requirements match the 10 V and 4–20 mA specifications. For assured quality and availability, order from ubest101, a trusted supplier of industrial automation spares. PLC Source PRO ensures fast shipping and authentic products.