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6ES7421-5EH00-0AA0

Siemens 6ES7421-5EH00-0AA0 SM 421 Optically Isolated

In stock (21 units), ready to be shipped

  • Manufacturer: Siemens

  • Product No.: 6ES7421-5EH00-0AA0

  • Product Type: Digital Input Module

  • Product Origin: DE

  • Payment:T/T, Western Union

  • Weight: 650g

  • Shipping port: Xiamen

  • Warranty: 12 months

30-Day Return Policy · 12-Month Warranty
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Description

Siemens 6ES7421-5EH00-0AA0 SIMATIC S7-400 SM 421 Digital Input Module

Siemens 6ES7421-5EH00-0AA0 is a SIMATIC S7-400 SM 421 digital input module with 16 AC 120V inputs. Features 1 common point, optical isolation, and input characteristic curve according to IEC 61131 Type 2.

Key Specifications

Parameter Value
Article No. 6ES7421-5EH00-0AA0
Product Type Digital Input Module SM 421
Number of Inputs 16
Rated Input Voltage AC 120V
Input Characteristic IEC 61131, Type 2
Number of Groups 1
Galvanic Isolation Channels to backplane bus
Weight Approximately 650 g

Input Specifications

Parameter Value
Signal "1" Voltage 72 to 132 VAC
Signal "0" Voltage 0 to 20 V
Frequency Range 47 to 63 Hz
Input Current (Signal "1") 6 to 20 mA
Input Current (Signal "0") 0 to 4 mA
Input Delay (0 to 1) 2 to 15 ms
Input Delay (1 to 0) 5 to 25 ms

Electrical Specifications

Parameter Value
Backplane Bus Current (5V) Approximately 100 mA
Power Loss Typically 3.0 W
Insulation Test Voltage 1500 VAC
Potential Difference (M internal to inputs) 120 VAC
Cable Length (Unshielded) 600 m
Cable Length (Shielded) 1000 m

Features

  • 16 inputs with galvanic isolation
  • Suitable for switches and 2-wire proximity switches (BERO, IEC 61131; Type 2)
  • Status LED per channel
  • No interrupts or diagnostics functions

FAQs

Q1: How many inputs does the 6ES7421-5EH00-0AA0 have?
A1: 16 digital inputs with 1 common point.

Q2: What is the rated input voltage?
A2: AC 120V with a frequency range of 47 to 63 Hz.

Q3: What is the input characteristic type?
A3: IEC 61131, Type 2, suitable for 2-wire proximity switches.

Product Resources

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🏷️ Tags: Digital Input Module Siemens

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