
Siemens 6AG1931-2EC21-2AA0
SIPLUS PS DC-UPS 24 V/15 A based on 6EP1931-2EC21 with conformal coating, -25…+60 °C
- MPN
- 6AG1931-2EC21-2AA0
- Category
- SIPLUS PS DC UPS module 15 A
Request a Quote
- 12-month warranty (new) · 3-month (used/refurbished)
- 30-day returns, no restocking fee on unused parts
- Ships via
- 100% positive eBay feedback
What is the Siemens 6AG1931-2EC21-2AA0?
SIPLUS PS DC-UPS 24 V/15 A based on 6EP1931-2EC21 with conformal coating, -25…+60 °C,
Specifications
General information
| Technical Product Detail Page | https://i.siemens.com/1P6AG1931-2EC21-2AA0 |
| product brand name | SIPLUS |
| product type designation | DC UPS |
| type of current supply | DC UPS 24 V/15 A |
| manufacturer's article number of the basic version used for SIPLUS product versions | 6EP1931-2EC21 |
input
| voltage curve at input | DC |
| supply voltage at DC rated value | 24 V |
| input voltage at DC | 22 ... 29 V |
| adjustable response value voltage for buffer connection preset | 22.5 V |
| adjustable response value voltage for buffer connection | 22 ... 25.5 V; Adjustable in 0.5 V increments |
| input current at rated input voltage 24 V rated value | 15 A; + approx. 1 A with empty battery |
memory
| type of energy storage | with batteries |
| product function DC-UPS modularly expandable | Yes |
| design of the mains power cut bridging-connection | Dependent on connected battery and load current, see selection table battery module and mains buffering times as well as the relevant important information notes! |
output
| output voltage — in normal operation at DC rated value | 24 V |
| output voltage — in buffering mode at DC rated value | 24 V |
| formula for output voltage | Vin - approx. 0.5 V |
| startup delay time typical | 1 s |
| voltage increase time of the output voltage typical | 60 ms |
| output voltage in buffering mode at DC | 19 ... 28.5 V |
| output current — rated value | 15 A |
| output current — in normal operation | 0 ... 15 A |
| output current — in buffering mode | 0 ... 15 A |
| peak current | 15.7 A |
| property of the output short-circuit proof | Yes |
| charging current | 0.35 A, 0.7 A |
efficiency
| efficiency in percent — at rated output voltage for rated value of the output current typical | 96.2 % |
| efficiency in percent — in case of operation on rechargeable battery typical | 96 % |
| power loss [W] — at rated output voltage for rated value of the output current typical | 14 W |
| power loss [W] — in case of operation on rechargeable battery typical | 15 W |
| supplied active power typical | 360 W |
protection and monitoring
| product function — reverse polarity protection against energy storage unit polarity reversal | Yes |
| product function — reverse polarity protection against input voltage polarity reversal | Yes |
| display version — for normal operation | Normal operation: LED green (OK), floating changeover contact "Bat/OK" to setting "OK" ("OK" means: Voltage of the supplying power supply unit is greater than cut-in threshold set at the DC UPS module); Lack of buffer standby: LED red (alarm), floating changeover contact "Alarm/Bat" to setting "Alarm"; Battery replacement required: LED red (alarm) flashing with approx. 0.25 Hz, floating changeover contact "Alarm/Bat" switching with approx. 0.25 Hz; Energy storage > 85%: LED green (Bat > 85%), floating NOcontact "Bat > 85" closed; Permissible contact current capacity: DC 60 V/1 A or AC 30 V /1 A |
| display version — in buffering mode | Buffered mode: LED yellow (Bat), floating changeover contact "OK/Bat" to setting "Bat"; Prewarning battery voltage < 20.4 VDC: LED red (alarm), floating changeover contact "Alarm/Bat" to setting "Alarm"; Energy storage > 85%: LED green (Bat > 85%), floating NO contact "Bat > 85" closed |
interfaces
| product component PC interface | No |
| product function communication function | No |
| design of the interface | without |
safety
| galvanic isolation between input and output | No |
| 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 |
standards, specifications, approvals
| certificate of suitability — CE marking | Yes |
| certificate of suitability — UKCA marking | Yes |
| MTBF at 40 °C | 791 139 h |
ambient conditions
| ambient temperature — in horizontal mounting position during operation | -25 ... +60 °C; with natural convection |
| ambient temperature — during transport | -40 ... +85 °C |
| ambient temperature — during storage | -40 ... +85 °C |
| installation altitude at height above sea level maximum | 6 000 m |
| ambient condition relating to ambient temperature - air pressure - installation altitude | In case of operation at altitudes of 2000 - 6000 m above sea level: Output power derating of -7.5 %/1000 m or reduction of the ambient temperature by 5 K/1000 m |
| relative humidity with condensation according to IEC 60068-2-38 maximum | 100 %; RH incl. condensation/frost (no commissioning if condensation is present), horizontal installation |
| chemical resistance to commercially available cooling lubricants | Yes; incl. diesel and oil droplets in the air |
| resistance to biologically active substances conformity according to EN 60721-3-3 | Yes; Class 3B2 mold, fungal, sponge spores (except fauna); class 3B3 upon request |
| resistance to chemically active substances conformity according to EN 60721-3-3 | Yes; Class 3C4 (RH < 75%) incl. salt spray acc. to EN 60068-2-52 (severity level 3) |
| resistance to mechanically active substances conformity according to EN 60721-3-3 | Yes; Class 3S4 incl. sand, dust |
| resistance to biologically active substances conformity according to EN 60721-3-6 | Yes; Class 6B2 mold, fungal, sponge spores (except fauna) |
| resistance to chemically active substances conformity according to EN 60721-3-6 | Yes; Class 6C3 (RH < 75%) incl. salt spray acc. to EN 60068-2-52 (severity level 3) |
| resistance to mechanically active substances conformity according to EN 60721-3-6 | Yes; Class 6S3 incl. sand, dust |
| coating for equipped printed circuit board according to EN 61086 | Yes; Class 2 for high availability |
| type of coating protection against pollution according to EN 60664-3 | Yes; Type 1 protection |
| type of test of the coating according to MIL-I-46058C | Yes; Discoloration of the coating during service life possible |
| product conformity of the coating Qualification and Performance of Electrical Insulating Compound for Printed Board Assemblies according to IPC-CC-830A | Yes; Conformal Coating, Class A |
connection method
| type of electrical connection | screw terminal |
| type of electrical connection — at input | 24 V DC: 2 screw terminals for 1 ... 4 mm²/17 ... 11 AWG |
| type of electrical connection — at output | 24 V DC: 4 screw terminals for 1 ... 4 mm²/17 ... 11 AWG |
| type of electrical connection — for rechargeable battery module | 24 V DC: 2 screw terminals for 1 ... 4 mm²/17 ... 11 AWG |
| type of electrical connection — for control circuit and status message | 10 screw terminals for 0.5 ... 2.5 mm²/20 ... 13 AWG |
mechanical data
| width × height × depth of the enclosure | 50 × 125 × 125 mm |
| installation width × mounting height | 50 mm × 225 mm |
| required spacing — top | 50 mm |
| required spacing — bottom | 50 mm |
| required spacing — left | 0 mm |
| required spacing — right | 0 mm |
| 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 |
| housing can be lined up | Yes |
| net weight | 0.4 kg |
accessories
| electrical accessories | Battery module |
further information internet links
| internet link — to website: Industry Mall | https://mall.industry.siemens.com |
| internet link — to website: Industry Online Support | https://support.industry.siemens.com |
additional information
| other information | Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified) |
security information
| security information | Siemens provides products and solutions with industrial cybersecurity functions that support the secure operation of plants, systems, machines and networks. In order to protect plants, systems, machines and networks against cyber threats, it is necessary to implement - and continuously maintain - a holistic, state-of-the-art industrial cybersecurity concept. Siemens’ products and solutions constitute one element of such a concept. Customers are responsible for preventing unauthorized access to their plants, systems, machines and networks. Such systems, machines and components should only be connected to an enterprise network or the internet if and to the extent such a connection is necessary and only when appropriate security measures (e.g. firewalls and/or network segmentation) are in place. For additional information on industrial cybersecurity measures that may be implemented, please visit www.siemens.com/cybersecurity-industry. Siemens’ products and solutions undergo continuous development to make them more secure. Siemens strongly recommends that product updates are applied as soon as they are available and that the latest product versions are used. Use of product versions that are no longer supported, and failure to apply the latest updates may increase customer’s exposure to cyber threats. To stay informed about product updates, subscribe to the Siemens Industrial Cybersecurity RSS Feed under https://www.siemens.com/cert. (V4.7) |
Downloads & documentation
Official documents from Siemens, downloaded directly from the manufacturer.
Data sheets & manuals
6AG1931-2EC21-2AA0: frequently asked questions
When can 6AG1931-2EC21-2AA0 be shipped?
6AG1931-2EC21-2AA0 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.
Can I pick up 6AG1931-2EC21-2AA0 in person?
Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.
Is express delivery available?
Yes — mention it when you request a quote for 6AG1931-2EC21-2AA0 and we'll include express shipping options in our reply.
My factory is down and I need this urgently — can you help?
For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for 6AG1931-2EC21-2AA0, subject to availability and destination.
More Siemens parts









