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6ES7421-7BH01-0AB0

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The Siemens 6ES7421-7BH01-0AB0 is a high-performance SIMATIC S7-400 digital input/output (I/O) module designed for reliable operation in industrial automation systems.
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Technical specifications for 6ES7421-7BH01-0AB0

  • Manufacturer:
    Siemens
  • Part Number:
    6ES7421-7BH01-0AB0
  • Product Family:
    Siemens Simatic S7-400
  • Number of Input Channels:
    16 digital inputs
  • Input Voltage:
    24V DC
  • Input Current:
    Typical 6mA for signal "1"
  • Input Characteristic Curve:
    IEC61131 Type 2
  • Sensor Power Supply:
    24V DC, maximum 120mA
  • Internal Processing Time:
    Maximum 60μs
  • Reverse Polarity Protection:
    Yes
  • Weight:
    0.5 kg
  • Estimated shipping dimensions:
    22.9x2.5x27.9cm
  • Tariff Code:
    8537101190
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.
Description

The Siemens 6ES7421-7BH01-0AB0 is a high-performance SIMATIC S7-400 digital input/output (I/O) module designed for reliable operation in industrial automation systems. Engineered to provide precise and fast signal processing, this module enables seamless communication between sensors, actuators, and the central PLC, ensuring accurate control and monitoring of automated processes. Built to withstand harsh industrial environments, it offers robust performance under conditions of vibration, temperature fluctuations, and electrical noise.


The module’s compact design allows easy integration into S7-400 racks, supporting scalable and flexible system configurations. Ideal for applications in manufacturing, process control, and large-scale automation, the 6ES7421-7BH01-0AB0 ensures consistent performance, high reliability, and enhanced operational efficiency. 

Alternative Names
6ES742I-7BH01-0AB0 6ES742I-7BHO1-0AB0 6ES742I-7BHOI-0AB0 6ES742I-7BHOI-OAB0 6ES742I-7BHOI-OABO
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What is the input delay time of the Siemens 6ES7421-7BH01-0AB0?
The input delay time of this module is parameterizable, with a minimum of 3μs.
Does the Siemens 6ES7421-7BH01-0AB0 support diagnostic functions?
Yes, this module supports diagnostic functions, including power supply voltage monitoring and disconnection detection.
What is the operating temperature range of the Siemens 6ES7421-7BH01-0AB0?
The operating temperature range is -25°C to +70°C.

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