Overview
The 6EP1931-2FC21 is a Siemens SITOP DC UPS module rated for 960 W continuous output, accepting a 24 V DC input and delivering up to 40 A in normal operation.
Siemens 6EP1931-2FC21 SITOP DC UPS module, 960 W, 24 V DC
MPN6EP1931-2FC21
NRND
Siemens 6EP1931-2FC21 — now in phase-out and being discontinued, supplied from remaining surplus and broker stock.
$277.77Ref. price · indicative, final on quote
StockContact for availability
Lead timeCall for availability wk
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Electrical – Output
| Parameter | Value |
|---|---|
| Rated current | 40 A |
| Output power at rated voltage/current (typ.) | 28.6 W |
Electrical – Input & Efficiency
| Parameter | Value |
|---|---|
| Supplied active power (typ.) | 960 W |
Protection & Isolation
| Parameter | Value |
|---|---|
| Ingress protection (IP) rating | IP20 |
| Protection class | Class III |
| Galvanic isolation input/output | No |
Connections
| Parameter | Value |
|---|---|
| Electrical connection type | screw-type terminals |
| Input terminals | 24 V DC: 2 screw terminals for 0.33 ... 10 mm²/22 ... 7 AWG |
| Output terminals | 24 V DC: 2 screw terminals for 0.33 ... 10 mm²/22 ... 7 AWG |
Mechanical
| Parameter | Value |
|---|---|
| Mounting method | Snaps onto DIN rail EN 60715 35x7.5/15 |
| Enclosure width | 102 mm |
| Enclosure height | 125 mm |
| Enclosure depth | 125 mm |
| Side-by-side mountable | Yes |
| Mounting clearance, left | 0 mm |
| Mounting clearance, right | 0 mm |
| Mounting clearance, top | 50 mm |
| Mounting clearance, bottom | 50 mm |
Environmental
| Parameter | Value |
|---|---|
| Operating temperature range | -25 ... +60 °C; with natural convection |
| Storage temperature range | -40 ... +85 °C |
| Transport temperature range | -40 ... +85 °C |
| Climatic class (IEC 60721) | Climate class 3K3, 5 … 95% no condensation |
Approvals & EMC
| Parameter | Value |
|---|---|
| CE marking | Yes |
| UL approval | Yes |
| EAC approval | Yes |
| Shipbuilding approval | ABS, DNV GL |
| EMC – emission standard | EN 55022 Class B |
| EMC – immunity standard | EN 61000-6-2 |
Reliability & Features
| Parameter | Value |
|---|---|
| MTBF at 40 °C | 522 739 h |
Product details
MPN
6EP1931-2FC21