Order number 6EP1437-2BA20 is a genuine Siemens part from the SITOP power supplies range. Official description: SITOP PSU300S/3AC/24VDC/40A.
SITOP supplies are the standard Siemens 24 V DC units for control panels; a stable 24 V supply prevents random PLC resets and sensor faults.
See our Siemens range.
Technical data
| Siemens order number | 6EP1437-2BA20 |
|---|---|
| Product type designation | PSU300S |
| Ambient temperature (operation) | 100 ms |
| Dimensions (W x H x D) | 145 × 145 × 150 mm |
| Weight, approx. | 3.1 kg |
| Condition | New, original Siemens |
Typical applications
- Sensors and valves
- 24 V supply for PLCs and panels
- Replacing a failed supply
Compatibility and replacement
Check the total 24 V load and the input voltage.
What to check first
- Look for signs of overvoltage, water or heat damage in the cabinet so the new part does not fail for the same reason.
- Note the firmware version printed on the old unit; TIA Portal or LOGO! Soft Comfort must support it.
- Back up the program and parameters from the old device if it still runs.
Frequently asked questions
What input voltage does it accept?
See the input data in the table.
Can you help me identify the right replacement?
Yes. Send us a photo of the label of the old part, or its full order number, and we will confirm the exact match or the official successor before quoting.
Can I get a datasheet?
The official manufacturer datasheet is the source of the technical data above; we can send the PDF with the quotation on request.
How fast can you deliver, and is there a warranty?
Air shipping usually takes 5 to 7 days once the part is ready, to almost any country. Each part is new and original with a 1-year warranty. Message us on WhatsApp with the order number for a quotation.
Ordering tips
Send us the full order number from the label of the old part, or a clear photo of the label, together with the quantity you need. We check the number against the current manufacturer data before we quote and tell you if there is a newer replacement.
Need it fast? Send the order number, quantity and delivery country on WhatsApp or through the inquiry form and we reply with a quotation the same working day. All parts are new and original, covered by a 1-year warranty, and ship worldwide by air in 5 to 7 days once ready (shipping, payment and warranty). Local agents: Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.





