BlueSolar PWM-DUO Charge Controller
12/24V 20A
Product Overview
The Victron Energy BlueSolar PWM-DUO Charge Controller is a versatile device designed for managing solar energy input to charge two separate battery banks simultaneously. It is suitable for applications such as boats or mobile homes where distinct battery systems are present.
Image Description: The BlueSolar PWM-DUO 12/24-20 unit is shown, a compact charge controller with indicators and terminals.
Image Description: An optional remote display unit for the BlueSolar DUO 12/24-20, allowing users to monitor and configure the charge controller from a distance.
Diagram Description: A schematic illustrating the typical connection of the BlueSolar PWM-DUO charge controller. It shows solar panels connected to the controller, which then connects to two separate battery banks (e.g., starter and service batteries). An optional remote display is also shown connected to the controller.
Key Features
- PWM controller technology.
- Charges two separate batteries independently. For example, it can manage the starter battery and the service battery of a boat or mobile home.
- Programmable charge current ratio, with a standard setting for equal current distribution to both batteries.
- Supports charge voltage settings for three battery types: Gel, AGM, and Flooded.
- Includes an internal temperature sensor and supports an optional external remote temperature sensor for accurate charging.
- Protected against over current.
- Protected against short circuit.
- Protected against reverse polarity connection of the solar panels and/or battery.
Specifications
| Parameter | BlueSolar PWM-DUO | 12/24-20 |
|---|---|---|
| Battery Voltage | 12/24 V with automatic system voltage detection | |
| Rated charge current | 20A | |
| Second battery output | Yes | |
| Automatic load disconnect | n. a. | |
| Maximum solar voltage | 28V / 55V (1) | |
| Self-consumption | 4 mA | |
| Protection | Battery reverse polarity (fuse) | Output short circuit, Over temperature |
| Operating temp. range | -35 to +55°C (full load) | |
| Humidity (non-condensing) | Max 95% | |
| DEFAULT SETTINGS | ||
| Charge voltage 'absorption' (2) | 14.4V / 28.8V | |
| Charge voltage 'float' (2) | 13.7V / 27.4V | |
| Battery temperature sensor | Yes, internal sensor (remote sensor optional) | |
| Temperature compensation | -30mV/°C / -60mV/°C | |
| ENCLOSURE | ||
| Protection class | IP20 | |
| Terminal size | 6 mm² / AWG10 | |
| Weight | 0.18kg | |
| Dimensions (h x w x d) | 76 x 153 x 37 mm | |
| STANDARDS | ||
| Safety | IEC 62109-1 | |
| EMC | EN 61000-6-1, EN 61000-6-3, ISO 7637-2 | |
Notes:
- (1) For 12V systems, use 36-cell solar panels. For 24V systems, use 72-cell solar panels or two 36-cell panels in series.
- (2) Refer to the user manual for alternative voltage settings.
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