An isolated 16-channel S7-300 digital output module for switching AC and DC loads through relay contacts.
The Siemens 6ES7322-1HH01-0AA0 is a SIMATIC S7-300 SM 322 digital output module with 16 isolated relay outputs. Siemens groups the channels in two isolated groups of eight and specifies one 20-pole front connector.
The module is intended for relay switching of compatible AC and DC loads. Procurement should match the complete MLFB because other SM 322 variants use different output technologies, load limits and connector arrangements.
| Field | Verified information |
|---|---|
| Manufacturer | Siemens |
| Product lifecycle | PM400: Announcement of product phase-out |
| PLM effective date | Product phase-out since: 2023-10-01 |
| Official successor | Not stated on the cited Siemens product page |
| Country of origin | Germany |
| Parameter | Official value |
|---|---|
| Article number | 6ES7322-1HH01-0AA0 |
| Product type | SIMATIC S7-300 SM 322 digital output module |
| Digital outputs | 16 relay outputs |
| Isolation | Between channels and backplane bus; channel groups of 8 |
| Rated load voltage | 120 V DC / 230 V AC |
| Rated output current | 2 A for signal “1” |
| Minimum load | 10 V / 10 mA |
| Total output current | 8 A per group |
| Power loss | Typically 4.5 W |
| Status indication | Green LED per channel |
| Interrupts / diagnostics | None / none |
| Front connection | 1 × 20-pole |
| Net weight | 0.276 kg |
Supports control of compatible contactors, valves, lamps and other actuators through relay contacts.
Fits S7-300 stations requiring sixteen isolated digital output points in one module position.
Useful where relay isolation is required and verified load ratings match the field circuit.
It is a SIMATIC S7-300 SM 322 digital output module with sixteen isolated relay outputs.
Siemens specifies two isolated channel groups of eight outputs.
The rated current for signal “1” is 2 A, subject to the documented load and installation limits.
No. Siemens lists no interrupts and no diagnostic functions for this exact module.
Confirm the full MLFB, load voltage and current, connector, wiring and S7-300 hardware configuration.
Send the full order code, quantity, destination and installed system details for supply verification and a focused replacement check.
A procurement-focused workflow for exact order-code validation, configuration review, condition evidence and coordinated international delivery.
The complete order number is the starting point for every request. For 6ES7322-1HH01-0AA0, our review distinguishes the exact hardware from similar family members whose channels, interfaces, memory, firmware or load ratings can differ.
Customers can provide an installed-unit label, cabinet list, project details and application notes. These inputs help focus compatibility checks before dispatch and reduce the risk of receiving a similar-looking but unsuitable configuration.
Before shipment, an available unit can be checked against the requested model, visible identification, enclosure condition, connector areas and included accessories. Photo evidence can be arranged so purchasing and engineering teams share a clear receiving reference.
Packing is selected for sensitive industrial electronics, with protection for controls, connectors and exposed edges. Each shipment is organized around the confirmed quantity and destination to support reliable handling and internal handover.
The same order code is carried through availability review, quotation, packing confirmation and shipping coordination. Buyers receive a concise record of the requested model, quantity and destination rather than a generic series-level response.
For international projects, the team can coordinate commercial documentation, shipment planning and tracking details. Warranty terms are confirmed with the quotation so scope and conditions are understood before the order proceeds.
Full model and suffix verification helps prevent confusion with nearby hardware revisions.
Available label, connector and condition photos support internal approval and receiving checks.
System, configuration and interface details are reviewed around the actual application.
Quotation, documentation, packing and shipment communication remain aligned to the request.
| Step | Focus | What to send or confirm |
|---|---|---|
| 1 | Request definition | 6ES7322-1HH01-0AA0, quantity, destination and required delivery window. |
| 2 | Technical check | Installed label, system configuration, interfaces and application details (SM 322 digital output, 16 relay outputs, 1 × 20-pole connector). |
| 3 | Evidence review | Visible identification, condition, connector area and available accessories. |
| 4 | Shipment coordination | Packing, commercial documents, tracking and warranty confirmation. |
Send the exact order code, quantity, destination and an installed-unit photo for an availability and compatibility review.
A mixed-brand reference list of 70 industrial automation models. These models are not presented as substitutes for 6ES7322-1HH01-0AA0; verify every complete order code independently.
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Send the exact part number, manufacturer, quantity and destination for availability verification, compatibility checking, global shipping coordination and warranty information.
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