Power Inverter | 3000W | 24VDC | 3U | Rack Mounted
GRANKIA GIR3K-24 3000w rack mount pure sine wave power inverter 24v delivers a stable and clean AC power. It ensures reliable performance for critical equipment and professional power systems.
It is designed for telecom, server rooms, security, and industrial applications. The rack mount pure sine wave power inverter provides seamless conversion from 24V DC to 220V /230V AC. The conversion is highly efficient and has low total harmonic distortion.
The pure sine wave inverter is equipped with a built-in toroidal transformer. It offers superior electrical isolation and enhanced durability. The consistent output waveform is ideal for sensitive electronic loads. Its pure sine wave output replicates utility-grade power, protecting connected devices from noise, surges, and voltage fluctuations.

Built-in Toroidal Transformer
Enhances conversion efficiency, reduces electrical noise, and ensures a stable, low-distortion sine wave output.
3U Rack Mounted Design
The compact 3U rack-mounted design allows for easy integration into standard 19-inch racks. This makes it ideal for use in data centers and other space-constrained environments.
Smart LCD + LED Display
Real-time monitoring of input/output voltage, load level, battery status, and operational mode.



| Code | Description |
| E01 | Power amplifier over current |
| E02 | Output short circuit protection |
| E03 | Overload protection |
| E04 | Over temperature protection |
| E05 | Battery over voltage protection |
| E06 | Low battery voltage protection |
| E07 | Phase reverse protection |
| E08 | Low output voltage protection |
| E09 | Date of manufacture does not match |
| E10 | Battery power down, voltage drop |
| Mode | Name | Description |
| 01 | Regular Mode
(Utility Power Priority) |
In utility power priority mode, when the inverter starts, stable power is delivered to the load through the utility bypass, while the battery pack is simultaneously charged—provided the utility power is within normal operating parameters.
If abnormal conditions occur, such as overvoltage, undervoltage, or severe power distortion, the inverter immediately switches to battery mode. Using its internal modules, it efficiently converts stored battery energy into high-quality AC power, ensuring a continuous and uninterrupted power supply to the connected load. |
| 02 | Energy Saving Mode | In energy saving mode, the inverter continuously monitors the load condition during operation.
|
| 03 | Energy Storage Priority Mode | In energy storage priority mode, when the battery is charged by an external source—such as a solar charging system or utility power—reaching a predetermined battery priority start level triggers the inverter to automatically convert stored battery energy into high-quality AC power for the load.
When the battery level drops to a specified battery priority stop value, the inverter continues to supply power to the load via utility bypass voltage regulation, but does not charge the battery. |
| Model | GIR3K-24 |
| Capacity | 3000W |
| INPUT | |
| Nominal Voltage | 110V/120V or 220V/230V/240V |
| Acceptable Voltage Range | -36%, +25% |
| Frequency | 50Hz/60Hz ±2.5Hz (Auto Sensing) |
| OUTPUT | |
| Rated Voltage | 110V/120V or 220V/230V/240V |
| Voltage Regulation | AC Mode: +/-10%; Battery Mode: +/-5% |
| Rated Frequency | 50Hz/60Hz ±0.5Hz (Auto Sensing) |
| Instantaneous Power | 9000W |
| Harmonic Distortion | Linear load <3%; Non-linear load <5% |
| Overload Capacity | >110% for 60s; >120% for 10s |
| Crest Factor | 3:1 |
| Wave Form | Pure Sine Wave |
| Transfer Time | < 8ms |
| EFFICIENCY | |
| Battery Efficiency | ≥ 85% |
| AC Efficiency | ≥ 93% |
| BATTERY | |
| Battery Type | AGM / GEL / LiFePO₄ / User Defined |
| Rate Voltage | 24VDC |
| Float Charge Voltage | 27.2VDC |
| High Voltage Protection | 33.0VDC |
| Low Voltage Protection | 21.0VDC |
| Charging Current | 0-40A |
| Charging Algorithm | Bulk / Absorption / Float |
| SYSTEM | |
| Standby Consumption | 35W |
| Mounting Type | Rack-mount |
| Ingress Protection | IP20 |
| Cooling Method | Intelligent Fan Cooling |
| Display | LCD + LED Indicators |
| Protection | Overload, Short Circuit, Reverse Polarity, Over/Low Voltage, Overheat |
| Communication Interface | RS232, RS485 / SNMP / MODBUS (optional) |
| ENVIRONMENT | |
| Humidity | 15~95% (non-condensing) |
| Altitude | ≤1000m (with increase of 100m,it will reduce output of 1%) max. 3000m |
| Operating Temperature | 0℃ to 40℃ |
| Storage Temperature | -15℃ to 50℃ |
| PHYSICAL | |
| Dimension, DxWxH(mm) | 483x420x132[3U] |
| Weight (Kg) | 21 |