MachineU > China Products > Electrical Equipment & Supplies > Industrial Controls > PLC PAC And Dedicated Controllers
Siemens 6ES7421-7DH00-0AB0 SIMATIC S7-400 SM 421 Digital Input Module
Siemens 6ES7421-7DH00-0AB0 SIMATIC S7-400 SM 421 Digital Input Module
Siemens 6ES7421-7DH00-0AB0 SIMATIC S7-400 SM 421 Digital Input Module
Siemens 6ES7421-7DH00-0AB0 SIMATIC S7-400 SM 421 Digital Input Module
Siemens 6ES7421-7DH00-0AB0 SIMATIC S7-400 SM 421 Digital Input Module
Siemens 6ES7421-7DH00-0AB0 SIMATIC S7-400 SM 421 Digital Input Module
Siemens 6ES7421-7DH00-0AB0 SIMATIC S7-400 SM 421 Digital Input Module
Siemens 6ES7421-7DH00-0AB0 SIMATIC S7-400 SM 421 Digital Input Module
Siemens 6ES7421-7DH00-0AB0 SIMATIC S7-400 SM 421 Digital Input Module
Siemens 6ES7421-7DH00-0AB0 SIMATIC S7-400 SM 421 Digital Input Module
Specifications
Brand Name :
Siemens
Model Number :
6ES7421-7DH00-0AB0
Certification :
CE
Place of Origin :
China
MOQ :
1
Payment Terms :
T/T
Delivery Time :
2-3 days
Product Name :
PLC Industrial Control
Part Number :
6ES7421-7DH00-0AB0
Shipment :
DHL
Condition :
New
Lead Time :
2-3 days
WQR12038HBL :
1 year
Keywords :
6ES7421-7DH00-0AB0
Description
Sinamics 6ES7421-7DH00-0AB0 Overview
The 6ES7421-7DH00-0AB0 is an optically isolated digital input module (SM 421) for the SIMATIC S7-400 controller platform. It provides 16 individually isolated digital input channels supporting a wide voltage range of 24–60 V UC (AC/DC), making it suitable for connecting standard switches and two‑wire proximity sensors (BEROs). Featuring configurable input delay, diagnostic interrupts, and alarm functions, this module ensures reliable signal acquisition in harsh industrial environments. It integrates seamlessly into S7-400 systems for factory automation, process control, and machinery monitoring applications.








Figure 1 shows the front panel of 6ES7421-7DH00-0AB0.

Siemens 6ES7421-7DH00-0AB0 SIMATIC S7-400 SM 421 Digital Input Module












Siemens 6ES7421-7DH00-0AB0 SIMATIC S7-400 SM 421 Digital Input Module














Quick Specs.

Table 1 shows the Quick Specs

Item Value
Type Digital Input Module, SM 421
Inputs 16 DI, individually isolated
Voltage 24–60 V UC (AC/DC)
Delay 0.5–20 ms
For SIMATIC S7-400








Detailed Specification
Parameter Detail
Order Number 6ES7421-7DH00-0AB0
Product Line SIMATIC S7-400
Input Type 16 x digital input, opto-isolated
Nominal Input Voltage 24 V to 60 V UC (AC/DC)
Input Current (ON) 4 mA typical
Input Delay 0.5 ms to 20 ms (adjustable)
Diagnostics Diagnostic interrupt, alarm function
Connection Screw/spring terminals
Dimensions W×D×H = 25 mm × 210 mm × 290 mm
Weight approx. 0.6 kg
Standards RoHS compliant



Siemens 6ES7421-7DH00-0AB0 SIMATIC S7-400 SM 421 Digital Input Module
Siemens 6ES7421-7DH00-0AB0 SIMATIC S7-400 SM 421 Digital Input Module
Send your message to this supplier
Send Now

Siemens 6ES7421-7DH00-0AB0 SIMATIC S7-400 SM 421 Digital Input Module

Ask Latest Price
Product Detail
Brand Name :
Siemens
Model Number :
6ES7421-7DH00-0AB0
Certification :
CE
Place of Origin :
China
MOQ :
1
Payment Terms :
T/T
Contact Supplier
Siemens 6ES7421-7DH00-0AB0 SIMATIC S7-400 SM 421 Digital Input Module
Siemens 6ES7421-7DH00-0AB0 SIMATIC S7-400 SM 421 Digital Input Module
Siemens 6ES7421-7DH00-0AB0 SIMATIC S7-400 SM 421 Digital Input Module
Siemens 6ES7421-7DH00-0AB0 SIMATIC S7-400 SM 421 Digital Input Module
Siemens 6ES7421-7DH00-0AB0 SIMATIC S7-400 SM 421 Digital Input Module

LonRise Equipment Co. Ltd.

Verified Supplier
10 Years
shanghai, shanghai
Since 2007
Business Type :
Distributor/Wholesaler, Agent, Seller
Main Products :
Optical Transceiver Module, SFP Optical Transceiver, Cisco SFP Modules
Total Annual :
2,000,000-4,000,000
Employee Number :
30~50
Certification Level :
Verified Supplier
Discover similar products
View More

Find Similar Products By Category:

Supplier Homepage Products PLC Industrial Control
MachineU China Products Electrical Equipment & Supplies Industrial Controls PLC PAC And Dedicated Controllers
Contact Supplier
Submit Requirement