Siemens Digital I/O Module SIMATIC S7-400 24V
- RS Stock No.:
- 226-3990
- Mfr. Part No.:
- 6ES7421-1BL01-0AA0
- Brand:
- Siemens
Subtotal (1 unit)*
£689.83
(exc. VAT)
£827.80
(inc. VAT)
FREE delivery for orders over £60.00
In Stock
- Plus 5 unit(s) shipping from 20 April 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £689.83 |
*price indicative
- RS Stock No.:
- 226-3990
- Mfr. Part No.:
- 6ES7421-1BL01-0AA0
- 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 | |
| Maximum Supply Voltage | 24V | |
| Number of I/Os | 32 | |
| Length | 290mm | |
| Series | SIMATIC S7-400 | |
| Standards/Approvals | RoHS | |
| Width | 25mm | |
| Depth | 210mm | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Module Type Digital I/O Module | ||
Product Type Digital I/O Module | ||
Maximum Supply Voltage 24V | ||
Number of I/Os 32 | ||
Length 290mm | ||
Series SIMATIC S7-400 | ||
Standards/Approvals RoHS | ||
Width 25mm | ||
Depth 210mm | ||
- COO (Country of Origin):
- DE
The Siemens SIMATIC S7-400 series digital input SM 421 has 32 digital input. It has 24VDC input voltage and 20mA current.
Number of digital input 32
Input current 20mA
Power loss 6W
Related links
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