---
product_id: 26578710
title: "Siemens | 6ES7421-1BL01-0AA0 | SM 421 Digital Input Module"
brand: "siemens"
price: "2574 zł"
currency: PLN
in_stock: true
category: "Siemens"
url: https://www.desertcart.pl/products/26578710-siemens-6es7421-1bl01-0aa0-sm-421-digital-input-module
store_origin: PL
region: Poland
---

# Siemens | 6ES7421-1BL01-0AA0 | SM 421 Digital Input Module

**Brand:** siemens
**Price:** 2574 zł
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Siemens | 6ES7421-1BL01-0AA0 | SM 421 Digital Input Module by siemens
- **How much does it cost?** 2574 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/26578710-siemens-6es7421-1bl01-0aa0-sm-421-digital-input-module)

## Best For

- siemens enthusiasts

## Why This Product

- Trusted siemens brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Siemens 6Es7421-1Bl01-0Aa0 Simatic S7 Digital Input Module Isolatedoptic 32 Di24 Vdc20 Ma

## Features

- 24 VDC
- 32 POINT
- DIGITAL
- INPUT MODULE
- PLC Module/Rack

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0028YMNJW |
| Date First Available | August 10, 2012 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.72 pounds |
| Item model number | SIMATIC S7 400 |
| Manufacturer | SIEMENS |
| Product Dimensions | 9.17 x 11.69 x 1.61 inches |

## Images

![Siemens | 6ES7421-1BL01-0AA0 | SM 421 Digital Input Module - Image 1](https://m.media-amazon.com/images/I/41h3X3RYwbL.jpg)

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**Shop now:** [https://www.desertcart.pl/products/26578710-siemens-6es7421-1bl01-0aa0-sm-421-digital-input-module](https://www.desertcart.pl/products/26578710-siemens-6es7421-1bl01-0aa0-sm-421-digital-input-module)

---

*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-05-01*