Eight-channel isolated SM 322 output module for 48–125 V DC loads in S7-300 systems.
Siemens identifies 6ES7322-1CF00-0AA0 as a SIMATIC S7-300 SM 322 digital output module with eight isolated outputs for 48–125 V DC loads at up to 1.5 A per channel. It uses one 20-pole front connector.
Electronic short-circuit protection, channel isolation in groups of four and fuse protection support industrial DC actuator switching. Procurement must match the higher-voltage DC load, output characteristics, front connector and S7-300 project requirements.
| Complete Siemens order number | 6ES7322-1CF00-0AA0 |
| Official designation | SIMATIC S7-300 SM 322 digital output module |
| Lifecycle | Product Cancellation |
| PM410 effective date | 01.10.2025 |
| Procurement class | Siemens spare part |
| Digital outputs | 8, isolated |
| Rated load voltage | 48–125 V DC |
| Permissible load range | 40–140 V DC |
| Rated output current | 1.5 A per channel |
| Front connector | 1 × 20-pole |
| Backplane-bus current | Maximum 100 mA |
| Power loss | Typical 7.2 W |
| Short-circuit protection | Electronic; threshold typically 4.4 A |
| Fuse protection | 6.3 A / 250 V quick fuse, 5 × 20 mm |
| Lamp load | 15 W at 48 V; 40 W at 125 V |
| Switching frequency | Resistive 25 Hz; inductive 0.5 Hz; lamp 10 Hz |
| Channel grouping | Isolation in groups of four |
| Isolation test | 1500 V AC |
Use current photographs to verify identity, interfaces and physical condition before procurement approval.
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| Application Area | Procurement Relevance |
|---|---|
| S7-300 DC output control | Switches documented 48–125 V DC field loads from an S7-300 station. |
| Industrial actuator circuits | Supports resistive, inductive and lamp loads within Siemens limits. |
| Redundant load control | Parallel control is supported only for outputs in the same group under documented conditions. |
Siemens classifies this S7-300 spare part under Product Cancellation, with the PM410 milestone effective 01.10.2025. Do not treat a mechanically similar output module as electrically interchangeable with this 48–125 V DC version.
It provides eight isolated digital outputs arranged in groups of four.
The rated load voltage is 48–125 V DC, with a documented permissible range of 40–140 V DC.
Parallel control for redundant loads is supported only for outputs in the same group; current uprating is not supported.
Send the complete order number, quantity, condition, destination and available label photos for an availability and compatibility review.
Copy or open: sales6@apterpower.com | +86 181 5988 9985
Model-specific review for identity, compatibility evidence, physical condition, packing and international delivery.
Exact Identity ReviewWe check the full order number, eight-channel layout, 48–125 V DC rating and 20-pole connector. |
Configuration EvidencePhotos should show the label, front connector, fuse areas, terminals and rear bus interface. |
Protected LogisticsSensitive interfaces and housings are protected before documented, trackable worldwide shipment. |
| Stage | Review Focus | Buyer Outcome |
|---|---|---|
| Identification | Full order number, designation and label evidence | Reduced model mismatch risk |
| Compatibility | Load voltage, channel current, load type, switching frequency, fuses, grouping and front connector | Clear pre-purchase checkpoints |
| Fulfilment | Condition, quantity, destination and packing needs | Traceable delivery planning |
Verification covers the 48–125 V DC load range, 1.5 A channel rating, eight-output grouping, 20-pole front connector, electronic protection and the installed S7-300 project.
| Packing | Interface protection, anti-static measures where appropriate and reinforced outer packing |
| Delivery | Trackable international shipment arranged to the confirmed destination |
| Documentation | Model and condition evidence retained for the procurement record |
| Warranty | Warranty terms stated in the quotation for the offered unit |
Send the complete order number, quantity, condition, destination and available label photos for an availability and compatibility review.
Copy or open: sales6@apterpower.com | +86 181 5988 9985
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Send the complete order number, quantity, condition, destination and available label photos for an availability and compatibility review.
Copy or open: sales6@apterpower.com | +86 181 5988 9985
