The RTLB21-RML 21kW portable load bank is a highly efficient and reliable device designed for testing and maintaining power systems. It features a compact rack-mounted design with universal casters and a foldable handle for excellent indoor mobility, provides accurate load simulation and independent three-phase loading, and comes with comprehensive protection mechanisms and flexible control methods, making it ideal for use in data centers and small laboratories.
Product Introduction
The Rata21kW Portable Rack-Mounted Load Bank offers these core advantages:
This rack-mounted load bank features 1kW, 2kW, and 4kW load steps for precise adjustment, and supports a short-term operating voltage tolerance of +5%.
Remote software functions include: networked centralized control (up to 252 units), fan on/off control, channel selection control, load on/off control, load step adjustment, and safety protection & alarm.
It provides multiple safety protections: Thermal emergency cut-out; 40A air circuit breaker protection; Dual power supply interlock protection; 80°C high-temperature red light alert; 90°C automatic trip-off.
It supports dual-channel (Channel A / Channel B) power input, improving the flexibility and reliability of testing.
Key Features and Advantages
Engineering drawingS (mm)
Key details
Main Parameters
| Model No. | RTLB21-RML |
| Max capacity | 21kW |
| Load step | L1: 1+2+4kW 230Vac |
| L2: 1+2+4kW 230Vac | |
| L3: 1+2+4kW 230Vac | |
| Resistors type | Finned heating tubular resistor |
| Power source | Dual (Channel A / Channel B) |
| Voltage Tolerance (Short Term Operation) | +5% |
| Load Element Tolerance | ± 3% |
| Load Connections | TYP281 (32A three-pins industrial connector) |
| Display | Digital meter(A/V/kW/Hz.) |
| Protection |
Thermal emergency cut out Air circuit breaker protection(40A) Dual power supply interlock protection 80℃ red light alert 90℃ trip off |
| Cooling method | Air forced cooling |
| Fans Nos. | 150mm diameters cooling fans 4pcs |
| Main components |
PLC -------------------Simens Contactors--------------Chint Intermediate relay-----Chint& Omron Time relay -------------Chint / or Omron(Newly added) |
| Airflow volume | 706CFM * 4 |
| Airflow direction | Horizontal |
| Rated maximum ambient temp. operation | +50°C / +122°F |
| Rated minimum ambient temp. operation | -20°C / -4°F |
| Altitude rating | <2000m [m.a.s.l.] |
| Control chamber IP rating | IP 23 |
| Portability | 4 universal castors + 2 Foldable handle clips |
| Enclosure dimensions | |
| Width(mm) | 432 |
| Depth(mm) | 465 |
| Height(mm) | 691 |
| Weight(KG) | 52 |
| Load bank control system | |
| Local control | Push buttons for L1/L2/L3 separately |
| Remote control 1 | RJ45 interface. PC remote control. |
| Remote control 2 | WiFi module. PC remote control. |
|
Remote control software(Without Rata Logs) Software can control load bank by either RJ45 or wifi |
1. Networking &Centralized control up tp 2.52 pcs.2. Fan Start / Stop control. 3. Channel select control. 4. Load Start / Stop Control. 5. Load Step Adjustment. 6. Safety Protection & Alarm. 7. Real time data(V/A/KW) display. |
FAQ