Order number 6EP1961-3BA21 is a genuine Siemens part from the SITOP power supplies range. Official description: SITOP PSE202U/Redundancy M./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 | 6EP1961-3BA21 |
|---|---|
| Product type designation | PSE202U |
| Ambient temperature (operation) | 931.6 kg |
| Dimensions (W x H x D) | 70 × 125 × 120 mm |
| Weight, approx. | 0.5 kg |
| Product designation | Redundancy module |
| Type of the power supply network | DC voltage |
| Voltage curve at input | DC |
| Supply voltage at DC | 24 V |
| Input voltage at DC | 24 … 28.8 V |
| Voltage curve at output | Controlled, isolated DC voltage |
| Product function output voltage controlled | Yes |
| Formula for output voltage | Vin – approx. 0.5 V |
| Output voltage adjustable | No |
| Type of signal at output | Isolated relay contact (changeover contacts, rating 8 A/240 V AC, 24 V DC): |
| Output current > rated value | 40 A |
| Output current > rated range | 40 A; max. aggregate current 40 A; +60 … +70 °C: derating 3%/K |
| Efficiency in percent | 96.6 % |
| At rated output voltage for rated value of the output current typical | 34 W |
| 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
- Compare the full order number 6EP1961-3BA21 with the label on the old unit, including the last digits (they identify the version).
- Check the mounting (DIN rail or screw fixing) and the terminal type (screw or spring-loaded) of the old unit.
- Check the supply voltage and wiring of the old unit before installing the new one.
Frequently asked questions
What input voltage does it accept?
See the input data in the table.
Is it new and original?
Yes. We supply new, original parts in the manufacturer packaging, with a 1-year warranty.
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.
Can I get a price and delivery time?
Prices are quoted on request. Send the order number, quantity and delivery country on WhatsApp and we will reply with price and delivery time; air shipping is usually 5 to 7 days once ready, with a 1-year warranty.
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.
Every part RendatSP supplies is new and original, carries a 1-year warranty and ships worldwide by air in 5 to 7 days once ready (shipping, payment and warranty). Send us the order number and quantity on WhatsApp or through the inquiry form and we will quote the same working day. Agents in Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.
