Siemens Digital I/O Module SIMATIC S7-400 Digital 24V
- RS Stock No.:
- 226-3995
- Mfr. Part No.:
- 6ES7421-7DH00-0AB0
- Brand:
- Siemens
Subtotal (1 unit)*
£1,068.43
(exc. VAT)
£1,282.12
(inc. VAT)
FREE delivery for orders over £60.00
Stocked by manufacturer
- Ready to ship from 27 July 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £1,068.43 |
*price indicative
- RS Stock No.:
- 226-3995
- Mfr. Part No.:
- 6ES7421-7DH00-0AB0
- Brand:
- Siemens
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Siemens | |
| Module Type | Digital I/O Module | |
| Product Type | Digital I/O Module | |
| Input Type | Digital | |
| Maximum Supply Voltage | 24V | |
| Number of I/Os | 16 | |
| Depth | 210mm | |
| Standards/Approvals | RoHS | |
| Length | 290mm | |
| Series | SIMATIC S7-400 | |
| Width | 25mm | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Module Type Digital I/O Module | ||
Product Type Digital I/O Module | ||
Input Type Digital | ||
Maximum Supply Voltage 24V | ||
Number of I/Os 16 | ||
Depth 210mm | ||
Standards/Approvals RoHS | ||
Length 290mm | ||
Series SIMATIC S7-400 | ||
Width 25mm | ||
- COO (Country of Origin):
- DE
The Siemens SIMATIC S7-400 series digital input SM 421 has 16 digital input. It has 24 to 60V input voltage and 150mA current.
Input current 150mA
Number of digital inputs 16
Type of input voltage AC/DC
Isolation tested with 1500 V AC