| Model |
KR3522-1250P20/C |
KR3542-0650P20/C |
KR5542-1050P20/C |
| Utility input |
| Utility Input Voltage |
176VAC to 264VAC (Default), 90VAC to 285VAC (Configurable) |
| Utility Input Frequency |
45Hz to 65Hz |
| Maximum Utility Charging Current |
110A |
60A |
100A |
| Switch Response Time |
Switch Response Time – Inverter to Utility: 10ms
Switch Response Time – Utility to Inverter (when the load power is higher than 100W): 20ms |
| Inverter output |
| Inverter Rated Power (@30℃) |
3500W |
5500W |
| 3-second Transient Surge Output Power |
7000W |
8500W |
| Inverter Output Voltage |
220/230VAC±3% |
| Inverter Frequency |
50/60Hz±0.2% |
| Output Voltage Waveform |
Pure sine wave |
| Load Power Factor |
0.2–1(VA ≤ Rated output power) |
| THDu (Total Harmonic Voltage Distortion) |
≤3% (24V resistive load) |
≤3% (48V resistive load) |
| Maximum Load Efficiency |
0.92 |
| Maximum Inverter Efficiency |
0.94 |
| Maximum Main Load |
3500W |
3500W |
5500W |
| Maximum Second Load |
3500W |
3500W |
5500W |
| Main Output Cut-Off Voltage |
Equal to “UVW (Under Voltage Warning Voltage)” |
| Second Output Cut-Off Voltage |
Equal to “LVD (Low Voltage Disconnect Voltage)” |
| Dual Output Recovery Voltage |
Equal to “LVR (Low Voltage Reconnect Voltage)” |
| Solar controller |
| PV Maximum Open-circuit Voltage |
500V (At minimum operating environment temperature);
440V (At 25℃) |
| MPPT Voltage Range |
85V to 450V |
| Number of MPPTs |
1 |
1 |
2 |
| PV Maximum Input Current |
One way, 16A/way |
One way, 16A/way |
Two ways, 2x16A |
| PV Maximum Short-circuit Current |
One way, 18A/way |
One way, 18A/way |
Two ways, 2x18A |
| PV Maximum Input Power |
4200W |
4200W |
2×3300W |
| PV Maximum Charging Current |
120A |
60A |
100A |
| MPPT Maximum efficiency |
≥99.5% |
| Battery |
| Battery Rated Voltage |
24VDC |
48VDC |
| Battery Work Voltage Range |
20.4VDC to 32.0VDC |
40.8VDC to 64.0VDC |
| Battery Maximum Charging Current |
120A |
60A |
100A |
| Others |
| No-load Losses |
≤1.5A |
≤0.8A |
≤1.1A |
| Test condition: Utility, PV and Load are disconnected, AC output is ON, fan stops, @24V input |
Test condition: Utility, PV and Load are disconnected, AC output is ON, fan stops, @48V input |
| Standby Current |
≤1.1A |
≤0.6A |
≤0.8A |
| Test condition: Utility, PV and Load are disconnected, AC output is OFF, fan stops, @24V input |
Test condition: Utility, PV and Load are disconnected, AC output is OFF, fan stops, @48V input |
| Communication with BMS |
RS485 |
| Communication with Portal |
RS485 |
| Parallel Function |
Yes, 12 units in standard, 16 units at most |
| Work Temperature Range |
-20℃ to +50℃ (When the environment temperature exceeds 30℃, the actual output power is reduced appropriately) |
| Storage Temperature Range |
-25℃ to +60℃ |
| Enclosure |
IP20 (With ANTI-DUST KIT) |
| Relative Humidity |
< 95% (N.C.) |
| Altitude |
<4000M (If the altitude exceeds 2000 meters, the actual output power is reduced appropriately) |
| Certifications and Standards |
IEC 62109-1, IEC 62109-2, IEC 61683, IEC 62368 |
| Mechanical parameters |
| Dimension (Length x Width x Height) |
590mm × 300mm × 163mm |
534mm × 300mm × 163mm |
590mm × 300mm × 163mm |
| Mounting size (Length x Width) |
568mm × 245mm |
512mm × 245mm |
568mm × 245mm |
| Mounting hole size |
Φ9mm/Φ10mm |
Φ9mm/Φ10mm |
Φ9mm/Φ10mm |
| Net Weight |
13.8Kg |
12.7Kg |
15.5Kg |
