WATTSTUNDE
WATTSTUNDE® PWM solar charge controller 20A with LCD display and USB ports for 12V / 24V systems
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LR20ALCD Solar charge controller 20A with LCD display and numerous programmable functions
The LR20ALCD is an intelligent solar charge controller with an LCD status display. The 20A solar charge controller reliably and gently charges the battery and protects it from dangerous deep discharge by automatically disconnecting its loads with intelligent load shedding when the battery reaches a critical charge level. The 20A charge controller is also designed to be very user-friendly, making all individually adjustable parameters very easy to configure.
- Illuminated LCD graphic display
- 2 x USB front ports
- Automated voltage detection 12 or 24V
- Battery type AGM, GEL, lead-acid (adjustable)
- Final charging voltage (adjustable)
- PWM control
- Temperature compensation
- LCD status display
- Overcharge protection
- Automatic shutdown in case of battery overvoltage (adjustable)
- Deep discharge protection LVD (adjustable)
- Load output 20A (adjustable)
- 12V/24V systems
- Protection against overtemperature or overload
- different operating modes can be set
- Control functions
- Operating instructions in German
| Technical data | LR20ALCD |
| Max. short-circuit current PC | 20 A |
| Max. open circuit voltage PV | 100 V DC (25 °C) |
| Max. solar power | 260 Wp (12 V) / 520 W (24 V) |
| Battery type | AGM, Gel, Lead-acid, Lithium |
| Nominal battery voltage | 12/24 V |
| Charging technology | 3-stage (Bulk, Absorption, Float), PWM |
| Float voltage | 13.8V (12V – 15V) / 27.6V (24V – 30V) |
| Absorption voltage | 14.4V (12V – 15V) / 28.8V (24V – 30V) |
| Protection class | IP32 |
| Display/operation | LCD display with backlight |
| Weight | 200g |
| Mass | 147 x 82 x 39 mm |
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