The ST-3KW Series is a new expandable and customizable pure sine wave inverter ,
designed specifically for 19-inch rack-mounted applications in the communication field.
Housed in a 4RU 19-inch rack chassis, it features a new-generation dual-input solution with 220V AC
and 12V DC power inputs.
This fills the gap between traditional UPS power supplies and common pure sine wave inverters,
providing a highly reliable power source for critical communication loads.
Equipped with double CPU intelligent control technology, it offers excellent performance.
The inverter has multiple operating modes such as grid mode, energy-saving mode, and
battery mode, providing flexible application scenarios. It has an RS232 communication port
for easy connection to monitoring systems. The LCD display shows real-time equipment parameters
and operation status clearly.
The unit comes with a series of protective features including short load protection, overload protection,
battery over/under voltage protection, overcurrent protection, and over-temperature protection.
It also has a maintenance bypass and DC backup option. The pure sine wave output (T.H.D < 3%) ensures
stable and high-quality AC power supply, and the seamless conversion between AC and DC power sources,
with a switch time of less than 6ms, is achieved through a built-in static switch.
Main features:
Standard 19” Rack mount 4RU Chassis;
True sine wave output (T.H.D < 3%);
LCD display equipment parameter in real-time, operation status be
clear at a glance;
Double CPU intelligent control technology, excellent performance;
The grid mode/energy-saving mode/battery mode could be set, application flexible;
RS232 communication Port;
Power-on self-test, Soft output start,Start auto restart while Ac or Dc is recovering;
Auto switch function: DC to AC, AC bypass, less than 6ms;
Real-time monitoring of the system operating status,Audible and visual alarm;
Record the historical alarm message and can be queried;
Build in voltage regulator Stabilize AC voltage;
Maintenance bypass /DC available;
Protection :Short load protection, over load protection, battery over/under voltage
Parameters:
| Technical Data |
| Model |
TF12/220-3000W |
| INPUT |
| AC Input Voltage |
170~270 VAC (220V Norm) |
| AC Breaker |
13.63A MCB |
| Battery Input Voltage |
12Vdc |
| Battery Voltage Range |
10-15Vdc |
| Battery Input Breaker |
250@MCB |
| Cooling |
Force Cooling |
| DC Input Current |
300A Max |
| Output Frequency |
50Hz±0.1% |
| OUTPUT |
| Rated Output Capacity |
3000W |
| Rated output Voltage |
220VAC (Inverter Mode) |
| Rated Output Current |
13.63A |
| Output Voltage Range |
220Vac(Tolerance ±5% @Inverter Mode) |
| AC Output Socket |
NEMA L5-30R*2 |
| Output Efficiency |
85~90% (Inverter Mode) |
| Output Frequency |
50Hz |
| Frequency Range |
47~53Hz |
| Output Wave |
Pure sine wave |
| THD |
≤3% (Line Load) |
| Switch Time (By pass to Inverter mode) |
≤6ms (With Load) |
| PROTECTIVE FEATURE |
| AC Under Voltage Switch Protection |
≤170Vac (Backlash voltage≥10Vac) |
| AC over Voltage Switch protection |
≥280AC |
| Over-Temperature |
Yes (Auto Switch) |
| Battery under voltage protection point |
≤85 |
| Battery Low-voltage alarm |
12.6±0.5 |
| Output Over Current Protection |
| Over Load Capacity |
Continue working 30s @ overload 110%~120% |
| Over Load Capacity |
Continue working 300ms @over load 160% |
| Over Temp. Protection |
Yes |
| short circuit Protection |
Yes (Don’t test under AC Connect) |
| Reverse connection protection |
Yes |
| Output OVP |
≥140VAC(Inverter Mode) |
| Output low voltage alarm |
≤85VAC (Inveter Mode) |
| SAFETY AND EMC |
| Dielectric strength(AC-Chassis) |
3500Vdc/10mA//1min .No flash over, no breakdown, no arc (Only AC Input priority) |
| Dielectric strength(DC-Chassis) |
750Vdc/10mA/1min. No flash over, no breakdown
|
| LVD |
EN 60950-1 |
| EMC/EM I |
EN 61000-6-3; EN 61000-6-1 ;IEC 61000-6-2 and IEC 61000-6-4 |
|
ROHS
|
IEC 62321-4 , IEC 62321-5,IEC 62321-6,IEC 62321-7,IEC 62321-8
|
| ENVIRONMENT TEST PERFORMANCE |
| Ambient Temp. |
0~ +40℃ |
| High temperature operation |
40±2℃ (rated load 24H) |
| Low temperature operation |
0±2℃ (rated load 24H) |
| High temperature storage |
50±2 ℃,24H |
| Low temperature storage |
-150±2℃,24H |
| Humidity |
0~90%,No moisture condensation |
| Operating Altitude (m) |
Altitude Full power up to 2000m.derating -2% / 100m, max altitude 5000m |
| COMMUNICATION |
| Rs232 |
Yes |
| LCD DISPLAY |
|
LCD Status
|
Input and output Voltage, Frequency ,Output Current,Temp., Load Rate, etc.
|
|
Inverter Status
|
Normal Mains, Normal Inverter, Battery Under-voltage and output overload etc.
|
| MEASUREMENT |
| Size W*D*H(mm) |
484*452*176mm |
( Custom- made , Colors can be grey or balck )
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