SIEMENS 6ES7421-1FH20-0AA0 SIMATIC S7-400, DIGITAL INPUT SM 421, ISOLATED 16 DI; UC 120/230V INPUTS ACCORDING

SIEMENS 6ES7421-1FH20-0AA0 SIMATIC S7-400, DIGITAL INPUT SM 421, ISOLATED 16 DI; UC 120/230V INPUTS ACCORDING

The **SIEMENS 6ES7421-1FH20-0AA0** is a model of the **SIMATIC S7-400** Digital Input Signal Module, specifically the **SM 421** variant. This module offers **16 isolated digital inputs** designed to work with signals at **120/230V AC**.

Key features of the 6ES7421-1FH20-0AA0 SM 421 Digital Input Module:

- **Product Code:** 6ES7421-1FH20-0AA0
- **Product Line:** SIMATIC S7-400
- **Module Type:** Digital Input Signal Module (SM 421)
- **Input Type:** Digital
- **Inputs:** 16
- **Isolation:** Isolated inputs
- **Voltage:** 120/230V AC
- **Functionality:** Provides 16 isolated digital inputs suitable for 120/230V AC signals

This Digital Input Signal Module is designed for seamless integration into the SIMATIC S7-400 system. It comes equipped with 16 isolated digital inputs tailored for handling signals at 120/230V AC. The isolated design ensures signal integrity and protection against interference, making it well-suited for industrial applications that require accurate and secure digital input processing at these voltage levels.