Description
Charge controller
Pulse Width Modulation (PWM)
KTF series
20A
12/24V auto work
KTF series is economic controller for solar home system, street light system and other small solar systems. All the electronic components are industrial grade without any mechanical switch. The electronic protections ensure the reliability of system.
- High efficient series PWM charging
- Use MOSFET as electronic switch
- Intelligent system optimum control
- Temperature compensation
- LED indicators indicate battery voltage state
Technical parameter
| Model | KTF1230 | KTF1220 | |
| Rated charging current | 30A | 20A | |
| Rated discharging current | 30A | 20A | |
| Short-current protection | 60A | 60A | |
| System voltage | 12V/24V Auto adapt | 12V/24V Auto adapt | |
| Over current protection | <1.3 maintain for 60s <1.6 maintain for 5s >1.6 shut down immediately |
<1.3 maintain for 60s <1.6 maintain for 5s >1.6 shut down immediately |
|
| Discharge voltage drop | ≤0.15V | ≤0.15V | |
| Max solar panel votlage | 21V | 21V | |
| Operating temperature | -35℃ to +55℃ | -35℃ to +55℃ | |
| Equalize charging voltage | 14.8V | 14.8V*4 | |
| Bulk charging voltage | 14.5V | 14.5V*4 | |
| Acceptance charging voltage | 14.2V | 14.2V*4 | |
| Float charging | 13.8V | 13.8V*4 | |
| Charge return voltage | 13.2V | 13.2V*4 | |
| Discharge stop voltage | 11.2V | 11.2V*4 | |
| Discharge return voltage | 12.6V | 12.6V*4 | |
| Temperature compensation | N/C | N/C | |
| Control mode | PWM( Pulse Width Modulation ) | PWM( Pulse Width Modulation ) | |
| Maximum wire size | 12AWG | 12AWG | |
| Size/weight | 140×95×33mm/165g | 140×95×33mm/165g | |
