Siemens 6ES7322-1HH01-0AA0 SIMATIC S7-300 SM 322 16-Relay Output Module
6ES7322-1HH01-0AA0
SIMATIC S7-300 SM 322 16-Relay Output Module · Sixteen isolated relay outputs in two groups of eight for switching compatible AC or DC loads from an S7-300 station.
Lifecycle note: Use the unit nameplate and current official documentation as final references before approving a replacement.
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+86 15359408275SIMATIC S7-300 SM 322 16-Relay Output Module · Siemens SIMATIC S7-300 SM 322
Siemens 6ES7322-1HH01-0AA0 is a SIMATIC S7-300 SM 322 digital output module with sixteen isolated relay contacts arranged in two groups of eight.
The contacts switch compatible 24 to 120 VDC or 24 to 230 VAC loads at up to 2 A per channel, allowing the module to control solenoid valves, contactors, motor starters, small motors and signal lamps within the documented ratings.
Before replacement, record the STEP 7 hardware configuration and output addresses, then verify load voltage and current, inrush and suppression, group commons, 24 VDC relay supply, 20-pole front connector and mounting orientation.
| Manufacturer | Siemens |
|---|---|
| Order number | 6ES7322-1HH01-0AA0 |
| Module | SM 322 digital output |
| Digital outputs | 16 relay contacts |
| Isolation grouping | Two groups of 8 outputs |
| DC load voltage | 24 to 120 VDC |
| AC load voltage | 24 to 230 VAC |
| Rated output current | 2 A per channel |
| Lamp load | 50 W maximum at 230 VAC |
| Relay coil supply | 24 VDC |
| Backplane current | 100 mA maximum at 5 VDC |
| Power loss | 4.5 W typical |
| Front connector | 20-pole |
| Dimensions | 40 x 125 x 120 mm |
| Approximate weight | 250 g |
Siemens 6ES7322-1HH01-0AA0 provides sixteen relay-contact digital outputs for switching compatible AC or DC field loads from an S7-300 station.
Siemens 6ES7322-1HH01-0AA0 divides the sixteen relay outputs into two electrically isolated groups of eight, so each group common and load supply must follow the terminal diagram.
Siemens 6ES7322-1HH01-0AA0 supports documented load voltages from 24 to 120 VDC and 24 to 230 VAC when contact current, load type and switching frequency remain within ratings.
Siemens 6ES7322-1HH01-0AA0 is rated up to 2 A per output, but inductive loads, lamp inrush, group loading, ambient temperature and contact life must also be checked.
A transistor-output SM 322 cannot directly replace Siemens 6ES7322-1HH01-0AA0 because output technology, voltage range, terminal assignment, switching behavior and diagnostics differ.
Commission Siemens 6ES7322-1HH01-0AA0 by verifying the 20-pole connector, group supplies and commons, then test every output, load current, interlock and safe-state response.
Provide the complete Siemens 6ES7322-1HH01-0AA0 order number, hardware revision, load voltage and type, front connector, rack configuration, quantity and destination.
Send the complete 6ES7322-1HH01-0AA0 catalog number, revision, quantity, destination and nameplate photo. Identification details will be checked before quotation.
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