SIEMENS 6ES7421-1EL00-0AA0 SIMATIC S7-400, DIGITAL INPUT SM 421, ISOLATED 32 DI; 120 V DC/AC

The **SIEMENS 6ES7421-1EL00-0AA0** is a model of the **SIMATIC S7-400** Digital Input Signal Module, specifically the **SM 421** variant. This module provides **32 isolated digital inputs** designed to work with signals at **120 V DC/AC**.

Key features of the 6ES7421-1EL00-0AA0 SM 421 Digital Input Module:

- **Product Code:** 6ES7421-1EL00-0AA0
- **Product Line:** SIMATIC S7-400
- **Module Type:** Digital Input Signal Module (SM 421)
- **Input Type:** Digital
- **Inputs:** 32
- **Isolation:** Isolated inputs
- **Voltage:** 120 V DC/AC
- **Functionality:** Provides 32 isolated digital inputs suitable for 120 V DC/AC signals

This Digital Input Signal Module is intended for integration within the SIMATIC S7-400 system and is equipped with 32 isolated digital inputs optimized for handling signals at 120 V DC/AC. The isolation feature ensures signal integrity and protection against interference, making it suitable for industrial applications requiring precise and secure digital input processing at higher voltage levels.