Siemens 6ES7407-0DA02-0AA0 PS407 4A Power Supply Module | Replacement, Equivalent & Selection Guide
The Siemens 6ES7407-0DA02-0AA0 is a 4 A rated power supply module (PS407) from the SIMATIC S7-400 series, designed to deliver stable 24 VDC output power to the S7-400 central rack. Konmask.com supplies genuine and compatible units with full traceability for industrial automation projects worldwide.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 6ES7407-0DA02-0AA0 |
| Series | SIMATIC S7-400 / PS407 |
| Output Current | 4 A |
| Output Voltage | 24 VDC (backplane bus) |
| Input Voltage | 120 / 230 VAC (wide-range) |
| Input Frequency | 47 – 63 Hz |
| Power Loss (typ.) | ≈ 20 W |
| Degree of Protection | IP20 |
| Operating Temperature | 0 °C – 60 °C |
| Dimensions (W×H×D) | 25 × 290 × 210 mm |
| Weight | approx. 600 g |
| Mounting | S7-400 UR1 / UR2 / UR2-H rack, slot 1 |
| Certifications | CE, UL, cUL |
Compatible Replacement & Equivalent Models
When the 6ES7407-0DA02-0AA0 is unavailable or end-of-life, the following models are validated drop-in or functional replacements:
| Model | Brand | Output | Notes |
|---|---|---|---|
| 6ES7407-0DA02-0AA0 | Siemens | 4 A / 24 VDC | Original — this unit |
| 6ES7407-0KA02-0AA0 | Siemens | 10 A / 24 VDC | Higher-capacity upgrade; same rack slot |
| 6ES7407-0RA02-0AA0 | Siemens | 4 A / 24 VDC (redundant) | Redundant PS for high-availability systems |
| 6ES7407-0DA01-0AA0 | Siemens | 4 A / 24 VDC | Earlier firmware revision; functionally equivalent |
| PS407 4A (3rd-party) | Compatible OEM | 4 A / 24 VDC | Cost-effective alternative; verify firmware compatibility |
Always verify rack slot assignment and firmware version before substitution. Contact Konmask for pre-sales compatibility checks.
Why Choose the Original Model
- Guaranteed compatibility — factory-validated for all S7-400 rack variants (UR1, UR2, UR2-H, ER1, ER2)
- Stable bus voltage — precision-regulated 24 VDC with < 1 % ripple for sensitive I/O modules
- Wide-range AC input — 120 / 230 VAC auto-switching eliminates transformer requirements globally
- Integrated diagnostics — LED status indicators and STEP 7 / TIA Portal fault reporting
- Long service life — rated MTBF > 300,000 hours under standard industrial conditions
Typical Applications
- Process automation: oil & gas, chemical, and water treatment plants
- Power generation and grid substation control panels
- Automotive body-shop and press-line PLC cabinets
- Pharmaceutical batch control and clean-room automation
- Railway signalling and infrastructure control systems
System Compatibility
- Racks: SIMATIC S7-400 UR1, UR2, UR2-H, ER1, ER2
- CPUs: All S7-400 CPU families (CPU 412, 414, 416, 417, 410, 412 Pro, etc.)
- Software: STEP 7 V5.x, TIA Portal V13 and above
- Communication: Compatible with PROFIBUS-DP, PROFINET, and MPI configurations
- Not compatible with: S7-300, S7-1500, or ET 200 racks
Selection Guide
| Scenario | Recommended Model |
|---|---|
| Standard S7-400 rack, ≤ 4 A load | 6ES7407-0DA02-0AA0 ✓ this unit |
| High-density I/O rack, 4–10 A load | 6ES7407-0KA02-0AA0 (10 A PS) |
| Redundant / fault-tolerant system | 6ES7407-0RA02-0AA0 (redundant PS) |
| Budget replacement, non-critical line | Compatible OEM PS407 4A |
| New project — consider S7-1500 migration | Consult Konmask for migration BOM |
Quality Assurance & Sourcing
- All units sourced from authorised distributors or verified surplus channels
- 100 % functional burn-in test before shipment
- Original packaging, labels, and date codes preserved where available
- Certificate of Conformance (CoC) and test report available on request
- 12-month warranty against manufacturing defects
How to Order
- Add 6ES7407-0DA02-0AA0 to cart or contact us for bulk / project pricing
- Specify required quantity and delivery timeline
- Provide project details for compatibility pre-check (optional but recommended)
- Receive proforma invoice within 1 business day
- Worldwide shipping via DHL / FedEx / UPS with full tracking
Replacement & Compatibility FAQ
Q: Can I replace 6ES7407-0DA02-0AA0 with 6ES7407-0KA02-0AA0?
A: Yes. The 10 A version is a direct slot-compatible upgrade and provides headroom for expanded I/O.
Q: Is this module compatible with S7-300 racks?
A: No. The PS407 series is exclusively designed for S7-400 racks. For S7-300, use the PS307 series.
Q: What is the difference between -0DA01- and -0DA02- versions?
A: The -0DA02- is the current production revision with minor firmware improvements; both are functionally equivalent in standard applications.
Q: Do you supply refurbished units?
A: We supply both new and professionally refurbished units. Condition is clearly stated on each listing. Refurbished units carry a 6-month warranty.
Q: Can Konmask help with a full S7-400 BOM?
A: Yes — send your rack configuration or STEP 7 hardware config export and we will provide a complete matched parts list.
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