The Siemens 6ES7405-0DA02-0AA0 is a SIMATIC S7-400 PS 405 power supply module for 24 V, 48 V or 60 V DC source networks. It occupies one rack slot and supplies the S7-400 backplane with 5 V DC at 4 A plus a 24 V DC auxiliary output at 0.5 A.
| Official lifecycle wording | PM300: Active Product |
| Procurement note | Confirm the exact 6ES7405-0DA02-0AA0 MLFB, rack loading, DC source range, battery requirements, connector condition and required approvals before ordering. |
| Manufacturer | Siemens |
| Complete article number | 6ES7405-0DA02-0AA0 |
| Product designation | PS 405, 4 A |
| Automation system | SIMATIC S7-400 |
| Nominal input voltage | 24 / 48 / 60 V DC |
| Permissible source range | 19.2–72 V DC |
| Primary output | 5 V DC / 4 A |
| Auxiliary output | 24 V DC / 0.5 A |
| Required rack slots | 1 |
| Primary/secondary isolation | Yes |
| Protection class | Class I with protective conductor |
| FM approval | Yes; Ta 0–60 °C, T4 |
| Operating temperature | 0–60 °C |
| Power connection | 3 × 1.5 mm² solid or stranded wire with end sleeve |
| Cable outside diameter | 3–9 mm |
| Operator indications | INTF, BAF, BATTF, 5 V DC and 24 V DC LEDs |
| Dimensions (W × H × D) | 25 × 290 × 217 mm |
| Approximate weight | 760 g |
Provides the regulated backplane power required by S7-400 central and expansion rack configurations.
Accepts wide-range DC sources used in industrial cabinets and backed-up control supplies.
Supports like-for-like service of installed PS 405 4 A rack positions after load verification.
Verify the complete MLFB, S7-400 rack, total 5 V backplane current, 24 V auxiliary load, DC source range, protective conductor, connector, batteries and available rack width.
Request clear nameplate, front-panel, connector and rack photographs. Confirm condition, battery compartment, accessories, test evidence, documentation, warranty, packing and delivery destination.
Siemens Industry Mall lists the exact 6ES7405-0DA02-0AA0 as PM300: Active Product. Procurement should still confirm current regional availability and the installed S7-400 rack load before replacement.
It is a Siemens SIMATIC S7-400 PS 405 power supply module rated 4 A on the 5 V DC output.
The module is specified for 24 V, 48 V or 60 V DC sources with a documented 19.2–72 V DC range.
It supplies 5 V DC at 4 A and an auxiliary 24 V DC output at 0.5 A.
The PS 405 4 A module occupies one S7-400 rack slot.
No. Input supply type, rack load, module width, connector and system design must be checked first.
Confirm the MLFB, rack type, 5 V load, auxiliary load, DC source, connector, battery needs and condition.
Send the full order code, quantity, destination and installed-system details for availability, configuration and compatibility review.
Exact PS 405 identification, rack-load review, inspection planning, sourcing coordination and global delivery support for S7-400 maintenance.



We compare the complete 6ES7405-0DA02-0AA0 MLFB, PS 405 4 A rating, S7-400 rack, DC source range, backplane load, auxiliary 24 V load and battery requirements supplied with the inquiry.
This helps avoid confusion with higher-current PS 405 variants, AC-input PS 407 modules or different-width redundant power supplies.
The agreed inspection scope can cover nameplate identity, front LEDs, standby controls, power connector, battery compartment, mounting points and enclosure condition.
We align visible evidence, requested functional checks, accessories, documentation, warranty, protective packing and destination-specific delivery requirements before dispatch.
The exact power module, rack, 5 V current demand, auxiliary load and DC source are checked as one configuration.
Procurement teams can define required photographs, connector condition, battery compartment checks and documents.
Condition, lead time, warranty, protective packing, transport preference and destination are reviewed before shipment.
| Stage | Order support |
| 1. Inquiry | Send 6ES7405-0DA02-0AA0, quantity, destination and available nameplate or installed-system evidence. |
| 2. Compatibility review | We compare the S7-400 rack, module width, 5 V load, 24 V auxiliary load, source range, connector and battery requirements. |
| 3. Commercial alignment | Availability, condition, lead time, inspection evidence, documentation, warranty and delivery expectations are confirmed. |
| 4. Packing and dispatch | Protective packing and shipment documentation are coordinated for the destination and selected transport method. |
Share the exact quantity, installed configuration, compatibility details and destination for an availability and procurement review.
A 70-model cross-brand reference list for automation, networking, safety, drives, instrumentation and maintenance procurement. Confirm every complete order code before purchase.
| 70 Model References | ||||
| 6GK5208-0BA00-2FC2 | 330104-02-09-10-01-00 | PRO3000 | EM100 - 823-865 | 0243002430 4.300-2420 |
| E175096 | REG-K 12X230/16 | 140471-01 3500/70 | AB444230035 | 15B10851G1 |
| KJ2003X1-BA2 /12P2093X102 | R6010 | SD55X | BM11D | DSX-PLA004 |
| ABB M2301 2TMA070080W0012 | GT437-491 | CK721-A | PR 4501 | BMP21 |
| EB0518(A) FXYMP-M 1677287 | 5642-50 | PSM700 | 24138990 | 60950-50 |
| ACHILLES-NGFW-300-2-R3B | LM4-LC24J-2A2UN | WV-S1112 | F9342DT-01 | 2182-227 |
| 233.52.100 | 15B10840G1 / 15H50541 | Nrk16/A | IEM-3000-8TM | ABB DC505-FBP 1SAP220000R0001 |
| 1SVR450055R0000 | 14YB3-230/C 29317AA8 | D504 | ATM-20 | GVAG-2VK1S |
| sms1600 pn sg001043 | 407860 | OC485 | B4-24-T-5-30 | PRO32IN 10290-0000-F REV-C |
| ABB PM582 / 1SAP140200R0100 | EDB14030 | MP80 | 102MC-SC | 02-70325-02 |
| 1860114A | TSW-552-BS | K9149FF-05 AS KG149FA | BOB1024 | 9418/01-201-10 |
| ABB 61318968 NDPC-02 | Eurotherm 2404 | RKLB57 6180BKR000000-H1111 | KNX /644692 | AVPR100S151213 |
| SDVN-2S | LBB4540/04 F01U508294 HW04/02 WK:2017 | EFCB12T-OE1 | O5H700 | GTD-2000Tx |
| ULFIM-D37M-45-XOR | 1606-XLE240EN | WTD-868-T | H2O | MA2-08E |
Send the exact order code, quantity and destination for availability, configuration and compatibility review.