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Siemens 6ES7421-1BL01-0AA0 | Digital Input Module

SKU: 6ES7421-1BL01-0AA0
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$1,490.00
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Siemens 6ES7421-1BL01-0AA0 | SIMATIC S7-400 Digital Input Module

Overview

The Siemens 6ES7421-1BL01-0AA0 is a digital input module designed for the SIMATIC S7-400 automation system. It offers 32 digital inputs at 24V DC in sink (negative logic) configuration, supporting the reliable acquisition of binary signals in industrial control applications. The module uses a 40-pin front connector and occupies a single slot in the S7-400 rack.


Key Features

  • Input Channels: 32 digital inputs

  • Input Voltage: 24V DC (sink)

  • Front Connector Type: 1 x 40-pin (not included)

  • Module Width: 1 slot

  • Diagnostics: Group diagnostics via LEDs

  • Signal Delay: Approx. 3.2 ms

  • Isolation: Between channels and backplane

  • LED Indicators: Per group for status diagnostics

  • Hot Swappable: Yes, with rack power on


Technical Specifications

  • Catalog Number: 6ES7421-1BL01-0AA0

  • Input Type: DC 24V, sink (IEC type 1/3)

  • Current per Input: Approx. 6 mA

  • Backplane Current Draw: Approx. 55 mA

  • Dimensions (W x H x D): Approx. 25 mm x 290 mm x 210 mm

  • Weight: Approx. 0.5 kg

  • Protection Class: IP20

  • Operating Temperature: 0°C to +60°C

  • Certifications: CE, UL, CSA, RoHS

  • Compatible Systems: SIMATIC S7-400 racks and CPUs


Applications

  • Industrial Automation Systems

  • Manufacturing and Assembly Lines

  • Control Cabinets for Machinery

  • Process Monitoring and Input Collection

  • OEM Automation Integration


Why Choose the 6ES7421-1BL01-0AA0?

  • High Channel Density: 32 inputs in a single-slot width

  • Reliable Signal Acquisition: Stable 24V DC input range

  • Compact Rack Integration: Ideal for control cabinet space optimization

  • Diagnostic LEDs: Quick status checks for maintenance

  • Siemens Quality: Durable, long-life module for critical systems


Order Now

Available for worldwide delivery. 

New & Genuine Products – Factory Sealed At PLCpartssolution, all our products are 100% new, genuine, and come in original factory-sealed packaging. We guarantee authentic components that meet the highest industry standards for performance and reliability.
1-Year Warranty Included All new products sold by PLCpartssolution come with a 1-year warranty. We stand behind the quality and reliability of our parts, ensuring coverage against manufacturing defects under normal operating conditions.
Disclaimer: PLCpartssolution is an independent supplier of surplus and refurbished industrial automation products. We are not an authorized distributor, reseller, or representative of the brands listed on this website. All trademarks, brand names, and logos are the property of their respective owners. PLCpartssolution is not affiliated with, endorsed by, or approved by ABB, Fanuc, B&R, Rockwell Automation, Schneider Electric, Siemens, or any other manufacturers mentioned.

Description

Siemens 6ES7421-1BL01-0AA0 | SIMATIC S7-400 Digital Input Module

Overview

The Siemens 6ES7421-1BL01-0AA0 is a digital input module designed for the SIMATIC S7-400 automation system. It offers 32 digital inputs at 24V DC in sink (negative logic) configuration, supporting the reliable acquisition of binary signals in industrial control applications. The module uses a 40-pin front connector and occupies a single slot in the S7-400 rack.


Key Features

  • Input Channels: 32 digital inputs

  • Input Voltage: 24V DC (sink)

  • Front Connector Type: 1 x 40-pin (not included)

  • Module Width: 1 slot

  • Diagnostics: Group diagnostics via LEDs

  • Signal Delay: Approx. 3.2 ms

  • Isolation: Between channels and backplane

  • LED Indicators: Per group for status diagnostics

  • Hot Swappable: Yes, with rack power on


Technical Specifications

  • Catalog Number: 6ES7421-1BL01-0AA0

  • Input Type: DC 24V, sink (IEC type 1/3)

  • Current per Input: Approx. 6 mA

  • Backplane Current Draw: Approx. 55 mA

  • Dimensions (W x H x D): Approx. 25 mm x 290 mm x 210 mm

  • Weight: Approx. 0.5 kg

  • Protection Class: IP20

  • Operating Temperature: 0°C to +60°C

  • Certifications: CE, UL, CSA, RoHS

  • Compatible Systems: SIMATIC S7-400 racks and CPUs


Applications

  • Industrial Automation Systems

  • Manufacturing and Assembly Lines

  • Control Cabinets for Machinery

  • Process Monitoring and Input Collection

  • OEM Automation Integration


Why Choose the 6ES7421-1BL01-0AA0?

  • High Channel Density: 32 inputs in a single-slot width

  • Reliable Signal Acquisition: Stable 24V DC input range

  • Compact Rack Integration: Ideal for control cabinet space optimization

  • Diagnostic LEDs: Quick status checks for maintenance

  • Siemens Quality: Durable, long-life module for critical systems


Order Now

Available for worldwide delivery. 

Condition

New & Genuine Products – Factory Sealed At PLCpartssolution, all our products are 100% new, genuine, and come in original factory-sealed packaging. We guarantee authentic components that meet the highest industry standards for performance and reliability.

Warranty

1-Year Warranty Included All new products sold by PLCpartssolution come with a 1-year warranty. We stand behind the quality and reliability of our parts, ensuring coverage against manufacturing defects under normal operating conditions.

Disclaimer

Disclaimer: PLCpartssolution is an independent supplier of surplus and refurbished industrial automation products. We are not an authorized distributor, reseller, or representative of the brands listed on this website. All trademarks, brand names, and logos are the property of their respective owners. PLCpartssolution is not affiliated with, endorsed by, or approved by ABB, Fanuc, B&R, Rockwell Automation, Schneider Electric, Siemens, or any other manufacturers mentioned.
Siemens 6ES7421-1BL01-0AA0 | Digital Input Module

Siemens 6ES7421-1BL01-0AA0 | Digital Input Module

$1,490.00
Add to wishlist
Siemens 6ES7421-1BL01-0AA0 | Digital Input Module

Siemens 6ES7421-1BL01-0AA0 | Digital Input Module

Your Price:
$1,490.00
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