SIMATIC S7-400 SM 422 16-output Relay contacts module / 6ES7422-1HH00-0AA0

6ES7422-1HH00-0AA0: SM 422 module with 16 digital outputs. Output type and rated current follow the exact manufacturer column; confirm voltage/load, output-group and configuration limits before ordering.

Manufacturer part number: 6ES7422-1HH00-0AA0
Brand: Siemens
Category: PLC and HMI
Catalog status: Request a quotation

Technical specifications

Controller family: SIMATIC S7-400
Module designation: SM 422
Digital inputs: 0
Digital outputs: 16
Output method: Relay contacts
Rated current per point: 5 A rated; contact voltage/load limits apply
Output isolation group size: 2 outputs per group
Isolation check voltage: 1500 VAC
Dimensions (W x H x D): 25 x 290 x 210 mm
Approximate weight (g): 700
Document pages: PDF 57, 58, 59
Current lifecycle status: Not established by historical catalogue; confirm separately
Contact switching capacity: 5 A at 30 VDC or 230 VAC; resistive load 1.2 A at 60 VDC and 0.2 A at 125 VDC, per catalogue contact-capacity row; exact operating limits require hardware manual

Manufacturer technical catalog · SIMATIC ST 400 / May 2017 · en · PDF · ST 400 / May 2017 / E86060-K4678-A151-A1-7600Manufacturer source: Siemens · Model explicitly covered in family document · Covered models: 6ES7422-1HH00-0AA0 · Checked: 2026-10-22Official 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.