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-m...
Read MoreThe 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.
With selectable output voltage, dynamic power sharing between load and battery, and a wide input range of 85–305 Vac or 110–420 Vdc, the DCU300M1224 ensures reliable operation in demanding and remote environments. It supports high inrush loads, features cold-start capability from battery, and delivers continuous output of up to 15A (12V) or 10A (24V).
Designed for long-life system performance, the unit includes temperature-compensated charging (optional SBS probe), multi-stage charging profiles for various battery chemistries, and comprehensive protections. Local status is provided via LED indicators and dry contact alarms, with optional remote monitoring available via MODBUS interface for integration with supervisory systems (DCU300M1224S).
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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
| 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 | |
Technical Drawings
Warranty & Returns
Warranty periods vary by product. Please refer to the Powerbox Warranty Policy for the applicable coverage period against manufacturing defects from date of purchase. For returns and RMA requests, please visit our RMA support page or contact our support team directly.