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- Manufacturer
- Siemens
- Manufacturer part number
- 6EP1961-2BA21
- Product family
- SITOP 24 V DC Power Supplies
- Category
- Power supplies › DIN-rail power supplies
- Technical datasheet
- Data sheet
Specifications
| Attribute | Value |
|---|---|
| Type | Selectivity module |
| Manufacturer lifecycle | Active |
| product type designation | PSE200U |
| product designation | SITOP Selectivity module |
| type of current supply | Selectivity module, 4 x 10 A Common signal contact |
| input / type of the power supply network | Controlled DC voltage |
| input / supply voltage at DC rated value | 24 V |
| input voltage at DC | 22 ... 30 V |
| input / overvoltage overload capability | 35 V |
| input current at rated input voltage 24 V rated value | 40 A |
| voltage curve at output | controlled DC voltage |
| formula for output voltage | Vin - approx. 0.2 V |
| output / relative overall tolerance of the voltage note | In accordance with the supplying input voltage |
| number of outputs | 4 |
| output current up to 60 °C per output rated value | 10 A |
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| output / adjustable current response value current of the current- dependent overload release | 3 ... 10 A |
|---|---|
| output / type of response value setting | via potentiometer |
| output / response delay maximum | 5 s |
| product feature parallel switching of outputs | No |
| type of outputs connection | simultaneous switch-on of all outputs after power-up of the supply voltage > 20 V, delay time of 25 ms, 100 ms, or "load-optimized" via DIP switch configurable for sequential switch-on |
| efficiency in percent | 99 % |
| efficiency / power loss [W] at rated output voltage for rated value of the output current typical | 10 W |
| switching characteristic / of the excess current | Iout = 1.0 ...1.5 x set value, switch-off after approx. 5 s |
| switching characteristic / of the current limitation | Iout = 1.5 x set value, switch-off after typ. 100 ms |
| switching characteristic / of the immediate switch-off | Iout > set value and Vin < 20 V, switch-off after approx. 0.5 ms |
| residual current at switch-off typical | 1 mA |
| switch-off characteristic / design of the reset device/resetting mechanism | via sensor per output |
| switch-off characteristic / remote reset function | non-isolated 24 V input (signal level "high" at > 15 V) |
| fuse protection type at input | 15 A per output (not accessible) |
| protection and monitoring / display version for normal operation | Three-color LED per output: green LED for "Output switched through"; yellow LED for "Output switched off manually"; red LED for "Output switched off due to overcurrent" |
| protection and monitoring / design of the switching contact for signaling function | Common signal contact (changeover contact, rating 0.1 A/24 V DC) |
| safety / galvanic isolation between input and output at switch-off | No |
| standard for safety | according to EN 62368-1 |
| safety / operating resource protection class | Class III |
| safety / protection class IP | IP20 |
| standard / for emitted interference | EN 55022 Class B |
| standard / for interference immunity | EN 61000-6-2 |
| certificate of suitability / CE marking | Yes |
| certificate of suitability / UL approval | Yes; UL-Recognized (UL 2367) File E328600; cULus-Listed (UL 508, CSA C22.2 No. 107.1) File E197259 |
| certificate of suitability / UKCA marking | Yes |
| certificate of suitability / EAC approval | Yes |
| type of certification / CB-certificate | Yes |
| standards, specifications, approvals / MTBF at 40 °C | 540 979 h |
| certificate of suitability / IECEx | No |
| certificate of suitability / ATEX | No |
| standards, specifications, approvals marine classification / shipbuilding approval | Yes |
| Marine classification association / American Bureau of Shipping Europe Ltd. (ABS) | Yes |
| Marine classification association / Det Norske Veritas (DNV) | Yes |
| standards, specifications, approvals Environmental Product Declaration / Environmental Product Declaration | Yes |
| global warming potential [CO2 eq] / total | 283 kg |
| global warming potential [CO2 eq] / during manufacturing | 8.7 kg |
| global warming potential [CO2 eq] / during operation | 274 kg |
| global warming potential [CO2 eq] / after end of life | 0.2 kg |
| standards, specifications, approvals Environmental Product Declaration / Siemens eco profile (SEP) | Siemens EcoTech |
| ambient temperature / during operation | -25 ... +60 °C; with natural convection |
| ambient temperature / during transport | -40 ... +85 °C |
| ambient temperature / during storage | -40 ... +85 °C |
| ambient conditions / environmental category according to IEC 60721 | Climate class 3K3, 5 ... 95% no condensation |
| type of electrical connection | screw terminal |
| type of electrical connection / at input | +24 V: 2 screw terminals for 0.5 ... 16 mm²; 0 V: 2 screw terminals for 0.5 ... 4 mm² |
| type of electrical connection / at output | Output 1 ... 4: 1 screw terminal each for 0.5 ... 4 mm² |
| type of electrical connection / for auxiliary contacts | Remote reset: 1 screw terminal for 0.5 ... 4 mm² |
| type of electrical connection / for signaling contact | 3 screw terminals for 0.5 ... 4 mm² |
| mechanical data / width × height × depth of the enclosure | 72 × 80 × 72 mm |
| mechanical data / installation width × mounting height | 72 mm × 180 mm |
| required spacing / top | 50 mm |
| required spacing / bottom | 50 mm |
| required spacing / left | 0 mm |
| required spacing / right | 0 mm |
| mechanical data / fastening method | Snaps onto DIN rail EN 60715 35x7.5/15 |
| fastening method / DIN-rail mounting | Yes |
| fastening method / S7 rail mounting | No |
| fastening method / wall mounting | No |
| mechanical data / housing can be lined up | Yes |
| mechanical data / net weight | 0.2 kg |
Description
The Siemens 6EP1961-2BA21 is the SITOP PSE200U selectivity module with four outputs and a common signaling contact. Siemens's data sheet gives an input of 22-30 V DC at up to 40 A, four outputs rated 10 A each up to 60 °C, a switch-off threshold adjustable from 3 to 10 A per output, and a remote reset input. SiePortal lists it as an active product.
Application: 24 V DC load distribution and protection
Used with: 24 V DC supplies up to 40 A
What is the 6EP1961-2BA21 used for?
It sits behind a 24 V DC supply and divides its output into four protected circuits, so an overload or short circuit on one circuit switches off only that circuit and not the whole 24 V supply.
Key features
- Four 24 V DC outputs, each up to 10 A
- Threshold adjustable 3-10 A per output
- Input 24 V DC, up to 40 A
- Common signaling contact; remote reset input
Documents and Resources
Associated Products
| Image | Product | Description | Stock | View | Add to RFQ |
|---|---|---|---|---|---|
 | 6EP1333-3BA10Siemens | SITOP PSU200M, 1/2-phase, 24 V DC 5 A | In stock | View | |
 | 6EP1334-3BA10Siemens | SITOP PSU200M, 1/2-phase, 24 V DC 10 A | In stock | View | |
 | 6EP1336-3BA10Siemens | SITOP PSU8200, AC/DC input, 24 V DC 20 A | In stock | View | |
 | 6EP1436-3BA00Siemens | SITOP modular, 3-phase, 24 V DC 20 A | In stock | View | |
 | 6EP1437-3BA00Siemens | SITOP modular, 3-phase, 24 V DC 40 A | In stock | View | |
 | 6EP1334-2BA20Siemens | SITOP PSU100S, 1-phase, 24 V DC 10 A | In stock | View |
Product Questions
Is the 6EP1961-2BA21 discontinued?
No. Its manufacturer lifecycle status is Active.
Can another Siemens SITOP power supplies part replace it?
Potential replacements must be checked against the required ratings, dimensions and connections. Sharing a family name does not establish interchangeability.
Do you ship worldwide?
Yes. TimControls ships worldwide. Parts usually ship within 3 to 7 working days of order confirmation, and the exact lead time and shipping options are stated on your quote. Include your delivery country and postal code when you ask for a quote.
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