Overview
The 6EP1931-2EC31 is a Siemens SITOP DC UPS module rated 360 W, accepting a 24 VDC input and delivering the same voltage minus approximately 0.5 V drop, with a maximum input current of 15 A (plus about 1 A with an empty battery).

Siemens 6EP1931-2EC31 — now in phase-out and being discontinued, supplied from remaining surplus and broker stock.
| Parameter | Value |
|---|---|
| Rated current | 15 A |
| Output power at rated voltage/current (typ.) | 14 W |
| Parameter | Value |
|---|---|
| Supplied active power (typ.) | 360 W |
| Parameter | Value |
|---|---|
| Ingress protection (IP) rating | IP20 |
| Protection class | Class III |
| Short-circuit proof output | Yes |
| Galvanic isolation input/output | No |
| Parameter | Value |
|---|---|
| Electrical connection type | screw-type terminals |
| Input terminals | 24 V DC: 2 screw terminals for 1 ... 4 mm²/17 ... 11 AWG |
| Output terminals | 24 V DC: 4 screw terminals for 1 ... 4 mm²/17 ... 11 AWG |
| Parameter | Value |
|---|---|
| Mounting method | Snaps onto DIN rail EN 60715 35x7.5/15 |
| Enclosure width | 50 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 |
| 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 |
| 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 |
| Parameter | Value |
|---|---|
| MTBF at 40 °C | 725 689 h |
The 6EP1931-2EC31 is a Siemens SITOP DC UPS module rated 360 W, accepting a 24 VDC input and delivering the same voltage minus approximately 0.5 V drop, with a maximum input current of 15 A (plus about 1 A with an empty battery).
Alternative models and sibling configurations in the same Siemens series. For obsolete or discontinued parts, these models can serve as compatible replacements or functional alternatives for plant maintenance.
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