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Siemens 6EP1961-3BA21
- MPN
- 6EP1961-3BA21
- Category
- Power Supplies
Price and lead time confirmed within 1 business day
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- 12-month warranty (new) · 3-month (used/refurbished)
- 30-day returns, no restocking fee on unused parts
- Ships via
What is the Siemens 6EP1961-3BA21?
Siemens 6EP1961-3BA21. Sourced on request by PartnerPLC — new, surplus or refurbished, subject to availability. Request a quote for price, condition and lead time.
Specifications
General information
| Technical Product Detail Page | https://i.siemens.com/1P6EP1961-3BA21 |
| Technical Product Detail Page | https://i.siemens.com/1P6EP1961-3BA21 |
| product brand name | SITOP |
| product type designation | PSE202U |
| product designation | Redundancy module |
input
| 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 |
output
| voltage curve at output | Controlled, isolated DC voltage |
| product function output voltage controlled | Yes |
| output voltage at DC rated value | 24 V |
| formula for output voltage | Vin - approx. 0.5 V |
| output voltage — at output 1 at DC rated value | 24 V |
| output voltage — at output 1 at DC | 24 V |
| output voltage adjustable | No |
| display version for normal operation | Green LED for "both Input voltages > switching threshold"; red LED: for "at least one input voltage < switching threshold" |
| type of signal at output | Isolated relay contact (changeover contacts, rating 8 A/240 V AC, 24 V DC): Signals OK if both input voltages > switching threshold, setting range of threshold 20 ... 25 V |
| output current — rated value | 40 A |
| output current — rated range | 40 A; max. aggregate current 40 A; +60 ... +70 °C: derating 3%/K |
efficiency
| efficiency in percent | 96.6 % |
| power loss [W] — at rated output voltage for rated value of the output current typical | 34 W |
| power loss [W] — during no-load operation maximum | 1.5 W |
safety
| galvanic isolation between input and output | No |
| galvanic isolation | relay contact: SELV, ES1 (IEC 62368-1), DVC As (IEC 61204-7) |
| operating resource protection class | Class III |
| protection class IP | IP20 |
EMC
| standard — for emitted interference | EN 55022 Class B |
| standard — for interference immunity | EN 61000-6-2 |
standards, specifications, approvals
| certificate of suitability — CE marking | Yes |
| certificate of suitability — UL approval | Yes; cULus-Listed (UL 508, CSA C22.2 No. 107.1), File E197259 |
| certificate of suitability — EAC approval | Yes |
| certificate of suitability — NEC Class 2 | No |
| type of certification — CB-certificate | No |
| MTBF at 40 °C | 6 471 654 h |
standards, specifications, approvals hazardous environments
| certificate of suitability — IECEx | No |
| certificate of suitability — ATEX | No |
| certificate of suitability — ULhazloc approval | No |
| certificate of suitability — FM registration | No |
standards, specifications, approvals marine classification
| shipbuilding approval | Yes |
| Marine classification association — American Bureau of Shipping Europe Ltd. (ABS) | Yes |
| Marine classification association — French marine classification society (BV) | No |
| Marine classification association — Det Norske Veritas (DNV) | Yes |
| Marine classification association — Lloyds Register of Shipping (LRS) | No |
standards, specifications, approvals Environmental Product Declaration
| Environmental Product Declaration | Yes |
| global warming potential [CO2 eq] — total | 954.1 kg |
| global warming potential [CO2 eq] — during manufacturing | 21.8 kg |
| global warming potential [CO2 eq] — during operation | 931.6 kg |
| global warming potential [CO2 eq] — after end of life | 0.51 kg |
ambient conditions
| ambient temperature — during operation | -25 ... +60 °C; with natural convection |
| ambient temperature — during transport | -40 ... +85 °C |
| ambient temperature — during storage | -40 ... +85 °C |
| environmental category according to IEC 60721 | Climate class 3K3, 5 ... 95% no condensation |
connection method
| type of electrical connection | screw terminal |
| at input | Input, output and ground: 1 screw terminal each for 0.33 ... 10 mm² single-core/finely stranded |
| for auxiliary contacts | Relay contact: 3 screw terminals for 0.5 ... 2.5 mm² single-core/finely stranded |
mechanical data
| width × height × depth of the enclosure | 70 × 125 × 120 mm |
| installation width × mounting height | 70 mm × 225 mm |
| required spacing — top | 50 mm |
| required spacing — bottom | 50 mm |
| required spacing — left | 0 mm |
| required spacing — right | 0 mm |
| fastening method | Snaps onto DIN rail EN 60715 35x7.5/15 |
| DIN-rail mounting | Yes |
| S7 rail mounting | No |
| wall mounting | No |
| housing can be lined up | Yes |
| net weight | 0.5 kg |
further information internet links
| internet link — to website: Industry Mall | https://mall.industry.siemens.com |
| internet link — to web page: selection aid TIA Selection Tool | https://www.siemens.com/tstcloud |
| internet link — to web page: power supplies | https://siemens.com/sitop |
| internet link — to website: CAx-Download-Manager | https://siemens.com/cax |
| internet link — to website: Industry Online Support | https://support.industry.siemens.com |
additional information
| other information | Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified) |
security information
| security information | Siemens provides products and solutions with industrial cybersecurity functions that support the secure operation of plants, systems, machines and networks. In order to protect plants, systems, machines and networks against cyber threats, it is necessary to implement - and continuously maintain - a holistic, state-of-the-art industrial cybersecurity concept. Siemens’ products and solutions constitute one element of such a concept. Customers are responsible for preventing unauthorized access to their plants, systems, machines and networks. Such systems, machines and components should only be connected to an enterprise network or the internet if and to the extent such a connection is necessary and only when appropriate security measures (e.g. firewalls and/or network segmentation) are in place. For additional information on industrial cybersecurity measures that may be implemented, please visit www.siemens.com/cybersecurity-industry. Siemens’ products and solutions undergo continuous development to make them more secure. Siemens strongly recommends that product updates are applied as soon as they are available and that the latest product versions are used. Use of product versions that are no longer supported, and failure to apply the latest updates may increase customer’s exposure to cyber threats. To stay informed about product updates, subscribe to the Siemens Industrial Cybersecurity RSS Feed under https://www.siemens.com/cert. (V4.7) |
Downloads & documentation
Official documents from Siemens, downloaded directly from the manufacturer.
Data sheets & manuals
6EP1961-3BA21: frequently asked questions
When can 6EP1961-3BA21 be shipped?
6EP1961-3BA21 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.
Can I pick up 6EP1961-3BA21 in person?
Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.
Is express delivery available?
Yes — mention it when you request a quote for 6EP1961-3BA21 and we'll include express shipping options in our reply.
My factory is down and I need this urgently — can you help?
For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for 6EP1961-3BA21, subject to availability and destination.
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