Battery Chargers
ARIS Power DCU300M1224 DC-UPS / Battery Charger
The ARIS Power DCU300M1224 is a 300W, all-in-one DC-UPS and battery charger designed to deliver uninterrupted 12Vdc or 24Vdc power to critical loads in industrial automation, security systems, and control equipment. It integrates a high-efficiency AC/DC power supply, intelligent battery charger, and backup functionality into a compact DIN rail-mounted form factor.
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Features
- Dual Mode DC Output with Battery Support: Selectable 12Vdc or 24Vdc output with up to 15A/10A continuous load current in normal operation. Supports high inrush loads with up to 30A peak output in backup mode.
- Integrated 3-Stage Battery Charger: Advanced IUoU+Recovery charging algorithm with programmable charge current and support for lead acid (vented/sealed/AGM), lithium-ion (LFP/NMC), NiCd, and NiMH chemistries.
- Wide Input Range (AC/DC): Universal AC input (85–305 Vac) and wide-range DC input (110–420 Vdc) for grid-connected or hybrid energy deployments, with automatic switchover and cold-start capability.
- Dynamic Load and Battery Power Sharing: Real-time prioritisation of load and battery charging based on available input and system conditions. Ensures critical loads are maintained during charging or mains instability.
- Comprehensive Protection & Diagnostics Features: include reverse polarity protection, overvoltage, overload, short circuit, and low voltage disconnect (LVD), with status indicated via multi-colour LEDs and relay alarms.
- Manual Battery Start without Mains: Enables battery-only system activation at remote sites during commissioning or grid failure via integrated push-button.
Specifications
Technical Illustrations
Downloads
| INPUT | ||
|---|---|---|
| Model(s) | DCU300M1224 / DCU300M1224S | |
| Rated Input Voltage | 115/230/277Vac (Range 85...305Vac) | |
| Rated Input Voltage DC | 110/220Vdc (range 110–420Vdc) | |
| Frequency Range | 50/60 Hz (range 47- 440Hz) | |
| Input Current (Typ.) | 2.8A (115Vac), 1.4A (230Vac) | |
| Inrush Current (Typ. Cold Start) | 15A max | |
| Setup, Rise Time Max | 1s | |
| Recommended External Fuse/MCB | 10A, Curve B | |
| Load Output - Power Supply Mode (Mains ON & Battery OFF) | ||
|---|---|---|
| Model(s) | DCU300M1224 / DCU300M1224S | |
| Voltage - Selectable by Dip Switch | 12Vdc | 24Vdc |
| Rated Current (IR) | 15A | 10A |
| Ripple / Noise | 80 mVpp | 100 mVpp |
| Short Circuit Protection | Yes | |
| Over Load Protection | Constant Current mode > 110% IR | |
| Over Voltage Protection | 35Vdc | |
| Load Output - Standby Mode (Mains ON & Battery ON) | ||
|---|---|---|
| Model(s) | DCU300M1224 / DCU300M1224S | |
| Voltage Range - Automatic Set | 12...14.4Vdc | 24...28.8Vdc |
| Max Continuous Current (IR+IBATT) | 20A | 15A |
| Max Current for 30s | 25A | 20A |
| Max Current for 15s | 30A | 25A |
| Max Current for 5s | < 35A | < 30A |
| Load Output - Backup Mode (Mains OFF & Battery ON) | ||
|---|---|---|
| Model(s) | DCU300M1224 / DCU300M1224S | |
| Voltage Range - Automatic Set | 9.5...12Vdc | 18.5...24Vdc |
| Max Continuous Current (IR+IBATT) | 20A | 15A |
| Max Current for 30s | 25A | 20A |
| Max Current for 15s | 30A | 25A |
| Max Current for 5s | < 35A | < 30A |
| Start from Battery with no mains (LVD overide) | Yes (via push button) | |
| Quiescent Current | < 90mA | |
| Alarms & Controls | ||
|---|---|---|
| Model(s) | DCU300M1224 / DCU300M1224S | |
| Mains / Backup Fail Alarm | Via change-over Relay Contact, M terminals | |
| Fault Alarm (DC OK) | Via change-over Relay Contact, F terminals | |
| Rectifier Alarm | Via change-over Relay Contact, S terminals | |
| Full set of monitor and alarm visual signals | Flashing codes on 3, Three-colour LEDs | |
| MODbus Data Link | Dual RJ45 connector (DCU300M1224S Only) | |
| Battery Management | ||
|---|---|---|
| Model(s) | DCU300M1224 / DCU300M1224S | |
| Rated Voltage | 12Vdc | 24Vdc |
| Charging Curve | 3 Stages (IUoU) + Recovery | |
| Charging Current setting (min/max) | 1.5A / 15.0A | 1A / 10A |
| Battery Type (dip switch selectable) | Vented & Sealed Lead Acid, AGM, Li-Io, Li-PoFe, NiCd/NiCd/Ni-Mh | |
| Voltage max | 14.75Vdc | 29.50Vdc |
| Boost Voltage | 14.4Vdc | 28.8Vdc |
| Float Voltage (dip switch selectable) | According to Battery Type | |
| Recovery Charge | 2-10Vdc | 2-20Vdc |
| Low Voltage Disconnect (LVD) Threshold | 9.3Vdc | 18.5Vdc |
| Low Voltage Alarm Threshold | 11Vdc | 22Vdc |
| Time Boost–Bulk Charge (Typ. IN) | min 5s, max 15h | |
| Temperature Compensation | Optional - via SBS Smart Temperature Compensation probe | |
| Boost Voltage Enable/Disable | Local dip switch or Remote Link | |
| Protections | Reverse Polarity | |
| Battery Diagnostics | Disconnected Battery, Wrong Battery Voltage, Sulphated Battery, Cell-In Short Circuit | |
| Life Test | Automatic Every 2 h in Standby, Manual on Push Button | |
| Environmental | ||
|---|---|---|
| Model(s) | DCU300M1224 / DCU300M1224S | |
| Operating Ambient Temperature (TA) | -25 up to +70°C | |
| Ambient Temperature D-Rating | 2.5 % / °C , TA > 50°C | |
| Relative Humidity, no condensation @ 25°C | max 95% | |
| Storage Temperature | -40 up to +85°C | |
| Cooling | Natural Convection | |
| Elevation D-Rating | 0.5°C/100 m, above 2000 m | |
| General | ||
|---|---|---|
| Model(s) | DCU300M1224 / DCU300M1224S | |
| Efficiency (Typ.) | 12Vdc (>90%); 24Vdc (>92%) | |
| Insulation Voltage (In/Out) | 4 kVac | |
| Insulation Voltage (In/PE) | 2 kVac | |
| Insulation Voltage (Out/PE) | 500 Vdc | |
| Insulation Resistance (500 V) | > 100 MΩ | |
| Protection Class (EN/IEC 60529) | IP 20 | |
| Pollution Degree Environment | 2 | |
| Dimensions (W x H x D) | 80 x 130 x 126 mm | |
| Weight | 0.9kg | |
| INPUT | ||
|---|---|---|
| Model(s) | DCU300M1224 / DCU300M1224S | |
| Rated Input Voltage | 115/230/277Vac (Range 85...305Vac) | |
| Rated Input Voltage DC | 110/220Vdc (range 110–420Vdc) | |
| Frequency Range | 50/60 Hz (range 47- 440Hz) | |
| Input Current (Typ.) | 2.8A (115Vac), 1.4A (230Vac) | |
| Inrush Current (Typ. Cold Start) | 15A max | |
| Setup, Rise Time Max | 1s | |
| Recommended External Fuse/MCB | 10A, Curve B | |
| Load Output - Power Supply Mode (Mains ON & Battery OFF) | ||
|---|---|---|
| Model(s) | DCU300M1224 / DCU300M1224S | |
| Voltage - Selectable by Dip Switch | 12Vdc | 24Vdc |
| Rated Current (IR) | 15A | 10A |
| Ripple / Noise | 80 mVpp | 100 mVpp |
| Short Circuit Protection | Yes | |
| Over Load Protection | Constant Current mode > 110% IR | |
| Over Voltage Protection | 35Vdc | |
| Load Output - Standby Mode (Mains ON & Battery ON) | ||
|---|---|---|
| Model(s) | DCU300M1224 / DCU300M1224S | |
| Voltage Range - Automatic Set | 12...14.4Vdc | 24...28.8Vdc |
| Max Continuous Current (IR+IBATT) | 20A | 15A |
| Max Current for 30s | 25A | 20A |
| Max Current for 15s | 30A | 25A |
| Max Current for 5s | < 35A | < 30A |
| Load Output - Backup Mode (Mains OFF & Battery ON) | ||
|---|---|---|
| Model(s) | DCU300M1224 / DCU300M1224S | |
| Voltage Range - Automatic Set | 9.5...12Vdc | 18.5...24Vdc |
| Max Continuous Current (IR+IBATT) | 20A | 15A |
| Max Current for 30s | 25A | 20A |
| Max Current for 15s | 30A | 25A |
| Max Current for 5s | < 35A | < 30A |
| Start from Battery with no mains (LVD overide) | Yes (via push button) | |
| Quiescent Current | < 90mA | |
| Alarms & Controls | ||
|---|---|---|
| Model(s) | DCU300M1224 / DCU300M1224S | |
| Mains / Backup Fail Alarm | Via change-over Relay Contact, M terminals | |
| Fault Alarm (DC OK) | Via change-over Relay Contact, F terminals | |
| Rectifier Alarm | Via change-over Relay Contact, S terminals | |
| Full set of monitor and alarm visual signals | Flashing codes on 3, Three-colour LEDs | |
| MODbus Data Link | Dual RJ45 connector (DCU300M1224S Only) | |
| Battery Management | ||
|---|---|---|
| Model(s) | DCU300M1224 / DCU300M1224S | |
| Rated Voltage | 12Vdc | 24Vdc |
| Charging Curve | 3 Stages (IUoU) + Recovery | |
| Charging Current setting (min/max) | 1.5A / 15.0A | 1A / 10A |
| Battery Type (dip switch selectable) | Vented & Sealed Lead Acid, AGM, Li-Io, Li-PoFe, NiCd/NiCd/Ni-Mh | |
| Voltage max | 14.75Vdc | 29.50Vdc |
| Boost Voltage | 14.4Vdc | 28.8Vdc |
| Float Voltage (dip switch selectable) | According to Battery Type | |
| Recovery Charge | 2-10Vdc | 2-20Vdc |
| Low Voltage Disconnect (LVD) Threshold | 9.3Vdc | 18.5Vdc |
| Low Voltage Alarm Threshold | 11Vdc | 22Vdc |
| Time Boost–Bulk Charge (Typ. IN) | min 5s, max 15h | |
| Temperature Compensation | Optional - via SBS Smart Temperature Compensation probe | |
| Boost Voltage Enable/Disable | Local dip switch or Remote Link | |
| Protections | Reverse Polarity | |
| Battery Diagnostics | Disconnected Battery, Wrong Battery Voltage, Sulphated Battery, Cell-In Short Circuit | |
| Life Test | Automatic Every 2 h in Standby, Manual on Push Button | |
| Environmental | ||
|---|---|---|
| Model(s) | DCU300M1224 / DCU300M1224S | |
| Operating Ambient Temperature (TA) | -25 up to +70°C | |
| Ambient Temperature D-Rating | 2.5 % / °C , TA > 50°C | |
| Relative Humidity, no condensation @ 25°C | max 95% | |
| Storage Temperature | -40 up to +85°C | |
| Cooling | Natural Convection | |
| Elevation D-Rating | 0.5°C/100 m, above 2000 m | |
| General | ||
|---|---|---|
| Model(s) | DCU300M1224 / DCU300M1224S | |
| Efficiency (Typ.) | 12Vdc (>90%); 24Vdc (>92%) | |
| Insulation Voltage (In/Out) | 4 kVac | |
| Insulation Voltage (In/PE) | 2 kVac | |
| Insulation Voltage (Out/PE) | 500 Vdc | |
| Insulation Resistance (500 V) | > 100 MΩ | |
| Protection Class (EN/IEC 60529) | IP 20 | |
| Pollution Degree Environment | 2 | |
| Dimensions (W x H x D) | 80 x 130 x 126 mm | |
| Weight | 0.9kg | |
Find the Right Model
| Model Number | Input Voltage (Vac) | Output Voltage (Vdc) | Output Current (A) | ||
|---|---|---|---|---|---|
|
DCU300M1224 | 115/230/277Vac (85...305Vac) | 13.8 / 27.6Vdc (Switch Selectable) | Nom. 12Vdc = 15A / Nom. 24Vdc = 10A | |
|
|
DCU300M1224S | 115/230/277Vac (85...305Vac) | 13.8 / 27.6Vdc (Switch Selectable) | Nom. 12Vdc = 15A / Nom. 24Vdc = 10A |
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