Siemens 6EP1961-3BA21 — SITOP DC power supply. DIN-rail primary-switched regulated 24 VDC power supply for automation panels. SITOP PSE202U Redundansmodul, input/output: 24 V/40 A DC, can be used till dekobling of 2 SITOP.
Siemens 6EP1961-3BA21 — SITOP DC power supply. DIN-rail primary-switched regulated 24 VDC power supply for automation panels. SITOP PSE202U Redundansmodul, input/output: 24 V/40 A DC, can be used till dekobling of 2 SITOP.
| Manufacturer part number (MPN) | 6EP1961-3BA21 |
| EAN / GTIN | 4025515152675 |
| Sales unit | pcs |
| Type of the power supply network | DC voltage |
| Supply voltage at DC | 24 V |
| Input voltage at DC | 24 ... 28.8 V |
| Voltage curve at output | Controlled, isolated DC voltage |
| Output voltage at DC rated value | 24 V |
| Formula for output voltage | Vin - approx. 0.5 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 in percent | 96.5 % |
| 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 |
| 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 |
| Standard for emitted interference | EN 55022 Class B |
| Standard for interference immunity | EN 61000-6-2 |
| CE marking | Yes |
| UL approval | Yes; cULus-Listed (UL 508, CSA C22.2 No. 107.1), File E197259 |
| EAC approval | Yes |
| MTBF at 40 °C | 6 471 654 h |
| Shipbuilding approval | Yes |
| American Bureau of Shipping Europe Ltd. (ABS) | Yes |
| It Norske Veritas (DNV) | Yes |
| Ambient temperature during operation | -25 ... +60 °C; with natural convection |
| Ambient temperature during transport | -40 ... +85 °C |
| Ambient temperature during storage | -40 ... +85 °C |
| Type of electrical connection | screw terminal |
| Connection method — 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 |
| Width × height × depth of the enclosure | 70 × 125 × 120 mm |
| Installation width × mounting height | 70 mm × 225 mm |
| Fastening method | Snaps onto DIN rail EN 60715 35x7.5/15 |
| Housing can be lined up | Yes |
| Mechanical data — net weight | 0.5 kg |
| Voltage type (supply voltage) | DC |
| 1st secondary output voltage | 24 V |
| Max. output current 1 | 40 A |
| Secondary voltage adjustable | No |
| Nominal value output voltage 1 | 24 V |
| Nominal value output current 1 | 40 A |
| Rated supply voltage DC | 24 V |
| Output voltage stabilized | Yes |
| Type of electric connection | Screw connection |
| Suitable for rail mounting | Yes |
| Wall mounting possible | No |
| Suitable for distribution board | Yes |
| Built-in width | 70 mm |
| Built-in height | 225 mm |
| Direct mounting possible | No |
| Width | 70 mm |
| Height | 125 mm |
| Depth | 120 mm |
| Suitable for safety functions | No |
| Degree of protection (IP) | IP20 |
| Suitable for wall mounting | No |
| Country of origin | Germany |
| MOQ | 1 |