SIMATIC S7-400 SM422 32-output digital module / 6ES7422-1BL00-0AA0

SIMATIC S7-400 SM422 32-output digital module; specifications are qualified to the May 2017 official catalogue. Verify current lifecycle, supplied revision and project configuration when requesting a quote.

Manufacturer part number: 6ES7422-1BL00-0AA0
Brand: Siemens
Category: PLC and HMI
Catalog status: Request a quotation

Technical specifications

Controller family: SIMATIC S7-400
Module designation: SM422
Width (mm): 25
Height (mm): 290
Depth (mm): 210
Approximate weight (g): 600
Channels per isolation group: 32
Isolation from backplane: Yes
Digital outputs: 32
Rated output: 24 V DC
Rated output current: 0.5 A per output; maximum 2 A per group of 8 adjacent outputs at up to 60 C in all mounting positions
Load supply range: 20.4..28.8 V DC
Outputs per aggregate-current group: 8
Maximum aggregate current per group (A): 2
Qualification: Isolation groups of 32 are distinct from aggregate-current groups of 8
Document pages: PDF 57, 58, 59
Reviewed document edition: ST 400 / May 2017 / E86060-K4678-A151-A1-7600

Manufacturer technical catalog · ST 400 / May 2017 / E86060-K4678-A151-A1-7600 · en · PDF · ST 400 / May 2017 / E86060-K4678-A151-A1-7600Manufacturer source: Siemens · Model explicitly covered in family document · Covered models: 6ES7422-1BL00-0AA0 · Checked: 2026-10-17Official manufacturer source

This sheet provides a quick technical summary. For design, installation and final selection, review the latest official manufacturer documentation and verify the complete part number.