# Siemens 6ES7521-1FH00-0AA0 Digital Input Module DI16 AC 230V 16 Channel

Reliably acquire 230V AC digital signals with the Siemens SIMATIC S7-1500 Digital Input Module DI16 x AC230V part number 6ES7521-1FH00-0AA0. This industrial module is engineered for robust PLC automation systems, offering 16 channels for accurate monitoring of AC-powered field devices. It is ideal for manufacturing plants and process industries seeking dependable signal acquisition and seamless integration with Siemens S7-1500 controllers.

The Siemens 6ES7521-1FH00-0AA0 provides essential AC digital input capabilities for demanding automation tasks. Its technical design ensures stable performance within control systems requiring precise 230V AC signal processing. This module is built for efficiency and longevity in industrial environments.

### Key Features:

-   **16-channel digital input** for Siemens SIMATIC S7-1500 PLCs
-   Supports **230V AC input signals** for industrial applications
-   Ensures reliable signal acquisition for automation and process control
-   Compact design for easy integration into S7-1500 systems
-   Industrial-grade construction for durability and stable operation

### Specifications:

-   Product Name: Siemens SIMATIC S7-1500 Digital Input Module DI16 x AC230V
-   Manufacturer Part Number: **6ES7521-1FH00-0AA0**
-   Series: SIMATIC S7-1500
-   Module Type: Digital Input DI
-   Input Channels: 16
-   Input Voltage: 230V AC
-   Application: AC digital signal monitoring in PLC automation
-   Compatibility: Siemens SIMATIC S7-1500

The Siemens 6ES7521-1FH00-0AA0 digital input module offers dependable AC signal processing and efficient integration for industrial automation. Trust Siemens’ engineering for your control system needs. Explore reliable automation solutions today.

## Details

- **Price:** 999.0 USD
- **Vendor:** Siemens
- **Type:** Industrial Automation > PLC Components > Digital Input Modules
- **Tags:** 16 channel input, AC 230V, automation components, digital input module, industrial control, PLC automation, Siemens 6ES7521-1FH00-0AA0, Siemens SIMATIC S7-1500

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 999.00 USD | In stock |

## Images

- Siemens 6ES7521-1FH00-0AA0 Digital Input Module DI16 AC 230V 16 Channel-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/siemens-6es7521-1fh00-0aa0-digital-input-module)
> Updated: 2026-09-30