Siemens Digital I/O Module SIMATIC S7-400 Digital 28.8V

View all PLC Accessories

Subtotal (1 unit)*

£1,016.06

(exc. VAT)

£1,219.27

(inc. VAT)

Add to Basket
Select or type quantity
In Stock
  • Plus 1 unit(s) shipping from 20 April 2026
  • Plus 1 unit(s) shipping from 22 April 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +£1,016.06

*price indicative

Shop Siemens SIRIUS
Discover our Siemens SIRIUS products. Command, Control, Monitor and start your motors the Hybrid way.
Find out more
RS Stock No.:
226-3997
Mfr. Part No.:
6ES7422-1BL00-0AA0
Brand:
Siemens
Find similar products by selecting one or more attributes.
Select all

Brand

Siemens

Product Type

Digital I/O Module

Module Type

Digital I/O Module

Input Type

Digital

Maximum Supply Voltage

28.8V

Number of I/Os

32

Standards/Approvals

RoHS

Depth

210mm

Length

290mm

Width

25mm

Series

SIMATIC S7-400

COO (Country of Origin):
DE
The Siemens SIMATIC S7-400 series digital input SM 421 has 32 digital input. It has 24 VDC input voltage and 0.5A output current.

Input current 30mA

Supply voltage 24V

Number of digital inputs 32

Power loss 4W

Related links