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Specifications & Features

This Victron BlueSolar PWM-Light controller manages charging at up to 20A on 12V or 24V solar battery systems, with automatic voltage detection and low-voltage load disconnect.

The PWM-Light uses automatic 12V/24V system detection and three-stage PWM charging for small solar lighting and backup-power systems. Its load output provides manual control, low-voltage disconnect and a timer, while the IP20 enclosure is intended for indoor vertical wall mounting.

 

Specifications

  • Rated charge current: 20A
  • Battery voltage: 12V or 24V with automatic system voltage detection
  • Maximum solar voltage: 28V for 12V systems and 55V for 24V systems
  • Charging type: PWM with bulk, absorption and float stages
  • Load output: Manual control with low-voltage disconnect and timer
  • Protection: Battery reverse polarity fuse, output short circuit and over-temperature protection
  • Self-consumption: Less than 10mA
  • IP rating: IP20
  • Mounting: Vertical wall mount, indoor only
  • Dimensions: 70mm × 133mm × 33.5mm
  • Operating temperature: -20°C to +50°C at full load
  • Terminal size: 5mm² / AWG10
Installation Guidance, Tips & Tricks

Choose an indoor location: Mount the IP20 controller vertically on a suitable indoor wall, away from moisture and condensation.

 

Confirm system voltage: Verify whether the battery system is 12V or 24V before connection. The controller detects the system voltage automatically at start-up.

 

Check the solar array: Confirm the array is appropriate for the system and remains within the maximum 28V solar voltage for 12V systems or 55V for 24V systems.

 

Allow connection space: Provide clearance for the 70mm × 133mm × 33.5mm enclosure and use suitable 5mm² / AWG10 conductors where required.

 

Test the load output: After installation, check charging, low-voltage disconnect and the selected timer setting. Electrical and solar work should be completed by a qualified person.

Frequently asked questions

What is the charge rating?

This model has a rated charge current of 20A.

 

Does it support 12V and 24V batteries?

Yes. It automatically detects a 12V or 24V system at start-up.

 

What solar panel voltage can it accept?

The maximum solar voltage is 28V for a 12V system and 55V for a 24V system.

 

Does it include load protection?

Yes. The load output includes low-voltage disconnect, and the controller provides reverse-polarity, short-circuit and over-temperature protection.

 

Can it be installed outdoors?

No. The IP20 enclosure is intended for indoor vertical wall mounting.

 

What are the dimensions?

The controller measures 70mm × 133mm × 33.5mm.

Specifications & Features

This Victron BlueSolar PWM-Light controller manages charging at up to 20A on 12V or 24V solar battery systems, with automatic voltage detection and low-voltage load disconnect.

The PWM-Light uses automatic 12V/24V system detection and three-stage PWM charging for small solar lighting and backup-power systems. Its load output provides manual control, low-voltage disconnect and a timer, while the IP20 enclosure is intended for indoor vertical wall mounting.

 

Specifications

  • Rated charge current: 20A
  • Battery voltage: 12V or 24V with automatic system voltage detection
  • Maximum solar voltage: 28V for 12V systems and 55V for 24V systems
  • Charging type: PWM with bulk, absorption and float stages
  • Load output: Manual control with low-voltage disconnect and timer
  • Protection: Battery reverse polarity fuse, output short circuit and over-temperature protection
  • Self-consumption: Less than 10mA
  • IP rating: IP20
  • Mounting: Vertical wall mount, indoor only
  • Dimensions: 70mm × 133mm × 33.5mm
  • Operating temperature: -20°C to +50°C at full load
  • Terminal size: 5mm² / AWG10

Victron BlueSolar PWM-Light Solar Charge Controller - 20A 12/24V

5.0

SKU: BLUESOLAR-20
R 837.00
R 837.00
R 1,199.00
This Victron BlueSolar PWM-Light controller manages charging at up to 20A on 12V or 24V solar battery systems, with automatic voltage detection and low-voltage load disconnect.
Secure payment options
Hallway Backup Lighting During Load-Shedding
Use the controller with a 12V battery and small panel to keep hallway LED lights charged and ready for nighttime outages.
Small Office Network Uptime
Manage charging on a 24V battery bank feeding your router, ONT, and switch from a modest indoor solar array, keeping connectivity during power cuts.
Garage Bench DC Lighting
Maintain a 12V battery for bright DC task lights at a workbench, using a compact panel through the controller to recharge safely between evening projects.
Security System Battery Room
Keep alarm panel and CCTV NVR powered by a 12V or 24V bank, with daytime solar charging managed indoors to extend runtime during outages.

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