Specifications

Model: AS‑521P‑008

Manufacturer: Schneider Electric

Series: Modicon Compact

Input Points: 16 discrete inputs

Input Type: 24VDC sink/source compatible

Rated Voltage: 24VDC (19.2–30VDC wide range)

Input Current: ~7mA per channel @24VDC

Logic ‘1’: ≥11VDC

Logic ‘0’: ≤5VDC

Response Time: ≤10ms (on/off)

Isolation: Channel‑to‑bus 1500Vrms/1min; group‑to‑bus 1500Vrms/1min

Power Consumption: ~1.2W (backplane powered)

Operating Temperature: 0°C to +60°C

Storage Temperature: −40°C to +85°C

Humidity: 5%–80% (non‑condensing)

Weight: ~0.40kg

Certifications: CE, UL, CSA

Features

16‑point high‑density input saves rack space for high I/O count configurations.

Wide voltage tolerance (19.2–30VDC) handles industrial 24V supply fluctuations.

Channel‑level electrical isolation (1500Vrms) improves noise immunity and reduces ground loop risks.

Fast response & diagnostics (≤10ms) with LED status indicators per channel for quick troubleshooting.

Industrial‑grade reliability with metal housing and vibration resistance for harsh environments.

Seamless Compact rack compatibility (1‑slot form factor) for easy integration with Modicon Compact CPUs and power supplies.

Applications

Manufacturing: Automotive lines, machine tools, packaging, electronics assembly.

Process Industry: Chemical, water treatment, food & beverage, pharmaceutical.

General Automation: Logistics, textile machinery, HVAC, building control systems.