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- Siemens 6EP1961-2BA11 SITOP PSE200U 4x0.5-3A 24V Selectivity Module Siemens 6EP1961-2BA11 SITOP PSE200U 4x0.5-3A 24V Selectivity Module
Siemens 6EP1961-2BA11 SITOP PSE200U 4x0.5-3A 24V Selectivity Module
Siemens 6EP1961-2BA11 SITOP PSE200U 4x0.5-3A 24V Selectivity Module
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- Description
The Siemens SITOP PSE200U 6EP1961-2BA11 is a 4-channel selectivity module for 24 V DC systems, taking a 12 A input and splitting it across four outputs each adjustable from 0.5 to 3 A, with a common signaling contact for remote status. It isolates an overloaded branch circuit while the other three channels stay powered.
Technical Specifications
| SKU | 6EP1961-2BA11 |
| Brand | Siemens |
| Series | SITOP PSE200U |
| Product designation | PSE200U, selectivity module 4x3A |
| Input voltage (rated) | 24 V DC |
| Input voltage range | 22 ... 30 V DC |
| Input overvoltage capability | 35 V |
| Input current (rated, 24V) | 12 A |
| Number of outputs | 4 |
| Output current per channel, up to 60°C | 3 A |
| Adjustable overload threshold | 0.5 ... 3 A |
| Threshold setting | via potentiometer |
| Response delay, max. | 5 s |
| Efficiency | 97% |
| Power loss, typ. | 9 W |
| Overcurrent trip | Iout = 1.0-1.5x setpoint, trip after approx. 5 s |
| Current-limit trip | Iout = 1.5x setpoint, trip after typ. 100 ms |
| Immediate shutdown | Iout > setpoint and Vin < 20 V, trip after approx. 0.5 ms |
| Input fuse | 5 A per output (not accessible) |
| Remote reset | Non-isolated 24 V input, signal high at > 15 V |
| Protection class IP | IP20 |
| MTBF at 40°C | 755,915 h |
| Enclosure (W x H x D) | 72 x 80 x 72 mm |
| Mounting | Snaps onto DIN rail EN 60715 35x7.5/15 |
| Net weight | 0.2 kg |
Certifications & Standards
- CE
- UKCA
- EAC
- CB
- Shipbuilding
- ABS
- DNV
- EPD
Selection Notes
The 0.5-3 A adjustable threshold per channel and 12 A input current size this module for lower-current 24 V branch circuits than the higher-current 4x10A selectivity modules in the same family; pick this variant when individual branch loads stay under 3 A. The non-isolated 24 V remote reset input lets a PLC clear a tripped channel without manual intervention at the cabinet, and the marine classification approvals (ABS, DNV) make it a fit for shipboard control panels where the plain diagnostics module is not certified.
Applications
Protects multiple independent 24 V DC branch circuits - sensors, small valve solenoids, remote I/O nodes - downstream of a single power supply, so a short on one output trips only that channel and the signaling contact reports which one.