Heavy-Industry Process Control Solution — SIEMENS 6ES7405-0KA02-0AA0 | S7-400 PS 405 10A
Where This Product Is Used
The SIEMENS 6ES7405-0KA02-0AA0 (PS 405 10A) is the backbone power supply for SIMATIC S7-400 control systems deployed in the most demanding industrial environments. Engineers specify this module in:
- Oil & Gas Processing Plants — Sustaining 24 VDC backplane power across multi-rack S7-400 configurations in upstream/downstream control rooms.
- Chemical & Petrochemical Facilities — Powering redundant CPU racks where uninterrupted 10 A output is critical to batch process integrity.
- Automotive Body & Paint Lines — Supplying stable DC power to high-density I/O racks controlling robotic welding and conveyor sequencing.
- Steel & Metals Production — Driving S7-400 systems managing rolling mill drives, furnace controls, and material handling PLCs.
- Water & Wastewater Treatment — Providing reliable power in SCADA-integrated S7-400 stations for pump, valve, and dosing control.
- Power Generation & Utilities — Supporting turbine governor and substation automation racks requiring high-current, low-ripple DC supply.
- Pharmaceutical Manufacturing — Enabling validated S7-400 control architectures in GMP-compliant production lines.
Technical Specifications
| Parameter | Value |
|---|---|
| Order Number | 6ES7405-0KA02-0AA0 |
| Product Family | SIMATIC S7-400, PS 405 |
| Input Voltage | 24 VDC (19.2 – 28.8 V) |
| Output Current | 10 A |
| Output Voltage | 5 VDC (backplane bus) |
| Power Rating | 50 W |
| Mounting | S7-400 UR1 / UR2 / ER1 / ER2 rack, Slot 1 |
| Dimensions (W×H×D) | 25 mm × 290 mm × 210 mm |
| Weight | Approx. 0.6 kg |
| Operating Temperature | 0 °C to +60 °C |
| Storage Temperature | -40 °C to +70 °C |
| Protection Class | IP 20 |
| MTBF | > 300,000 hours |
| Certifications | CE, UL, cUL, FM, ATEX (zone 2) |
Why Engineers Specify This Model
- 10 A High-Current Output — Supports fully populated S7-400 racks with CPU, CP, and dense I/O modules without derating.
- Wide Input Tolerance (19.2–28.8 VDC) — Maintains stable output across fluctuating plant DC bus voltages common in industrial environments.
- Integrated Diagnostics — LED status indicators and INTF/EXTF fault signals feed directly into S7-400 CPU diagnostics for predictive maintenance.
- Hot-Swap Compatible — Supports replacement under power in redundant rack configurations, minimizing planned downtime.
- Proven MTBF > 300,000 hrs — Validated reliability for continuous 24/7 process operations.
- Compact 25 mm Slot Width — Preserves rack space for additional I/O or communication modules.
Complete System Bill of Materials
For a standard S7-400 control station using this power supply, engineers typically pair the following components:
- 6ES7405-0KA02-0AA0 — PS 405 10A Power Supply (this module)
- 6ES7414-2XK05-0AB0 — CPU 414-2 DP (or equivalent S7-400 CPU)
- 6ES7400-1JA01-0AA0 — UR2 Universal Rack (9-slot)
- 6ES7421-1BL01-0AA0 — SM 421 Digital Input Module (32 DI)
- 6ES7422-1BL00-0AA0 — SM 422 Digital Output Module (32 DO)
- 6ES7431-1KF20-0AB0 — SM 431 Analog Input Module (8 AI)
- 6ES7443-1EX30-0XE0 — CP 443-1 Ethernet Communication Processor
- 6ES7390-1AE80-0AA0 — S7-400 Rack Mounting Rail
Contact Konmask.com for complete BOM pricing and availability on multi-module orders.
Compliance & Industry Standards
- CE Marking — Compliant with EU Low Voltage Directive 2014/35/EU and EMC Directive 2014/30/EU.
- UL / cUL Listed — Recognized for use in North American industrial control panels per UL 508A.
- FM Approved — Factory Mutual approval for use in Class I, Division 2 hazardous locations.
- ATEX Zone 2 — Suitable for installation in Zone 2 explosive atmospheres per EN 60079.
- IEC 61131-2 — Meets programmable controller power supply requirements.
- RoHS Compliant — Restriction of Hazardous Substances Directive 2011/65/EU.
Quality Assurance & Sourcing
Konmask.com sources the 6ES7405-0KA02-0AA0 exclusively through verified industrial distribution channels. Every unit undergoes the following before dispatch:
- Visual inspection against SIEMENS OEM packaging and label standards.
- Serial number verification against SIEMENS product authenticity database where applicable.
- Functional power-on test confirming output voltage and current within specification.
- Anti-static packaging with humidity indicator card for safe international transit.
We maintain traceability records for all shipments. Counterfeit-free guarantee backed by our sourcing policy.
How to Source This Part
- In-Stock Orders — Add to cart and check out directly. Most orders ship within 1–3 business days from our Hong Kong warehouse.
- Bulk / Project Quotes — Email support@konmask.com with your BOM and required delivery date for a competitive project price.
- Urgent Requirements — Call or WhatsApp +0086 19859288691 for same-day quotation on emergency plant breakdowns.
- OEM / Integrator Accounts — Ask about our volume pricing tiers and NET payment terms for qualified system integrators.
Application-Specific FAQ
Q: Can the 6ES7405-0KA02-0AA0 power a fully loaded 9-slot UR2 rack?
A: Yes. The 10 A output is sufficient for a fully populated UR2 rack with CPU, CP, and mixed I/O modules under typical load conditions. For racks with multiple high-current analog modules, verify total backplane current draw against the 10 A rating.
Q: Is this module compatible with S7-400H redundant systems?
A: The PS 405 10A is used in standard S7-400 racks. For S7-400H redundant CPU configurations, each rack requires its own PS 405 module. Consult SIEMENS S7-400H system manual for rack power budgeting.
Q: What is the difference between 6ES7405-0KA02-0AA0 and 6ES7407-0KA02-0AA0?
A: The 6ES7405-0KA02-0AA0 (PS 405) accepts 24 VDC input only. The 6ES7407-0KA02-0AA0 (PS 407) accepts wide-range AC/DC input (85–264 VAC / 88–300 VDC). Choose based on your plant power distribution architecture.
Q: Can I replace this module while the rack is powered?
A: Hot-swap is supported in redundant rack configurations where a second PS 405 is installed. In single-PS configurations, the rack must be de-energized before replacement.
Q: Do you provide a warranty?
A: Yes. Konmask.com provides a 12-month warranty against manufacturing defects on all genuine SIEMENS modules. Warranty claims are processed within 5 business days.
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Contact: support@konmask.com | +0086 19859288691
