Siemens 6ES73071KA020AA0 Power Supply
The 6ES73071KA020AA0 is a SIMATIC S7-300 power supply unit in the PS307 family, providing 24 VDC at 10 A to the rack backplane bus. It carries CE, EAC, and UL approval marks and is housed in a box-style enclosure rated IP20 for DIN Rail mounting in enclosed cabinets.
Selection Trade-offs
- Output current capacity vs. rack load: The 10 A rating covers the CPU, I/O modules, and backplane bus loads of small-to-medium S7-300 configurations; verify total branch current against the sum of module consumption before finalizing the order code.
- Form factor vs. panel space: DIN Rail mounting simplifies installation in control cabinets, but the enclosure depth and width require adequate clearance; alternative mounting orientations are not listed in the catalog record.
- IP20 rating vs. environment: The IP20 enclosure is suitable for enclosed cabinet or indoor panel environments; this unit is not listed for wash-down or outdoor locations.
- Operating temperature range vs. facility climate: The 0°C to 60°C range covers most climate-controlled industrial floors; facilities with ambient temperatures above 45 °C in unventilated cabinets may need derating or supplementary cooling.
- Certification coverage vs. target market: CE, EAC, and UL marks are present; buyers exporting to regions requiring additional marks (CSA, CCC, KC) should confirm acceptance before procurement.
Key Parameters
| Parameter | Value |
|---|---|
| Series | SIMATIC |
| Compatible rack | SIMATIC S7-300 |
| Output voltage | 24 VDC (from title) |
| Output current | 10 A (from title) |
| Mounting | DIN Rail |
| Enclosure | Box, IP20 |
| Operating temperature | 0°C to 60°C |
| Approvals | CE, EAC, UL |
| RoHS status | ROHS3 Compliant |
| Product status | Active |
In-Catalog Comparison
The following table presents the primary unit alongside the highest-similarity catalog rows. All entries share the SIMATIC series, DIN Rail mounting, IP20 rating, box encapsulation, and 0°C–60°C operating temperature.
| Spec key | 6ES73071KA020AA0 | 6ES73071EA010AA0 | 6ES79720AA020XA0 | 6ES79720AB010XA0 |
|---|---|---|---|---|
| Approval Agency | CE, EAC, UL | CE, EAC, UL | — | — |
| For Use With | SIMATIC S7-300 | SIMATIC S7-300 | SIMATIC DP | SIMATIC S7 |
| Ingress Protection | IP20 | IP20 | IP20 | IP20 |
| Mounting Type | DIN Rail | DIN Rail | DIN Rail | DIN Rail |
| Operating Temp | 0°C~60°C | 0°C~60°C | 0°C~60°C | 0°C~60°C |
| RoHS | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Similarity | — | 0.92 | 0.76 | 0.76 |
6ES73071EA010AA0 shares the PS307 power supply family and S7-300 compatibility, with identical approval marks, mounting, and IP rating. The similarity reflects shared parametric anchors in this catalog; the MPN suffix difference suggests a different output rating within the PS307 family.
6ES79720AA020XA0 and 6ES79720AB010XA0 are PROFIBUS/MPI repeaters. They share the Siemens SIMATIC series, DIN Rail box format, IP20 rating, and operating temperature, but serve a different function (bus signal conditioning) and are not evaluated as power supply replacements.
Additional lower-similarity catalog entries (interface modules IM153 variants, IOT2000 input module, S7-1500 digital output, ET200SP analog input) share the SIMATIC mounting form factor and IP20 box style but represent distinct product families or functional roles.
FAQ
What bus voltage does the 6ES73071KA020AA0 supply to the S7-300 rack? The title states 24 VDC at 10 A; this is the backplane bus supply for the mounted CPU and I/O modules.
Can the 6ES73071KA020AA0 be mounted outside a cabinet? The enclosure carries an IP20 rating; use inside a protective cabinet or enclosed panel is standard practice.
What approval marks does this power supply carry? CE, EAC, and UL marks are listed; confirm against the destination region's certification requirements before ordering.