Alvolta Luna-S 100V 20A MPPT Solar Controller

Alvolta Luna-S 100V 20A MPPT Solar Controller

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100 V 20 A MPPT solar controller unit for 12/24 V solar systems

$ 119.00 - Inc GST 119.0 in stock AUD $ 119.00 Tax Included

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Category: Solar Controllers, MPPT Charge Controllers, Solar Controllers, MPPT Charge Controllers

SKU: ALV-10020B

Alvolta Luna-S 100V 20A MPPT Solar Controller

MPPT Features

100 V
20 A charge current
Compatible with 12V & 24V systems
PowerCatcher maximum power point tracking technology
98% MPPT conversion efficiency
99% MPPT tracking efficiency
Maximises solar generation
- 12V solar panel: up to 260W
- 24V solar panel: up to 520W
Supports various battery types:
- Lithium
- Sealed lead-acid
- Flooded lead-acid
- Gel
Default battery voltage parameters include:
- Over-voltage disconnection voltage
- Equalising charge voltage
- Boost charge voltage
- Floating charge voltage
- Boost charge recovery voltage
- Equalising charging duration
- Equalising charging interval
- Boost charging duration
Intelligently registers battery type and applies preset settings for simple setup
Current-limit charging mode to ensure the system operates safely at its maximum rated charging current
Temperature compensation and auto-adjustments of charge and discharge parameters help improve battery life

Unit features

Built-in Bluetooth
Connection to Alvolta monitoring app
LED indicators
Simple setup
Supports CAN & TTL communication protocols
IP32 rated
3-year warranty

Where to use it

The Alvolta Luna-S 100 V 20 A MPPT Solar Controller can handle small to medium arrays, turning a roof of panels into steady charging for a battery bank on extended trips. Compatible with 12V and 24V systems and rated for 260 - 520 W of solar input, the Luna-S 100 V 20 A suits caravans, motorhomes, 4x4s, as well as off-grid cabins and sheds. Its 100 V input lets you wire panels in series, so less power is lost over longer cable runs.

Its compact housing sits comfortably inside electrical cabinets and storage spaces to remain tucked out of sight (although it's so good-looking, maybe you'll want it on display). It's rated IP32, which means it needs a dry, ventilated position out of direct sun and rain. Handling up to +65°C means that the Alvolta Luna-S range is perfect for Aussie outback summers, and it's backed with a 3-year warranty.

Dimensions

Width	150 mm
Height	105.6 mm
Depth	61.5 mm
Weight	0.65 kg

Safety features

IP32 rated
Input power limited protection
Battery reverse polarity protection
PV input end voltage protection
PV input end short-circuit protection
PV input reverse polarity protection
Reverse charging protection
Over-temperature protection
TVS lightning protection

Warranty

3-year warranty

Applications

4WD

RV's

Caravans

Off-Grid Systems

Tiny Houses

Cabins

About Alvolta

Australian-owned and operated, and driven by a passion for excellence, Alvolta offers unwavering performance and durability even in harsh Australian conditions. Alvolta specialises in precision-engineered DC components, designed to enhance off-grid adventures. Their commitment to delivering superior power performance with uncompromising quality is evident in their lineup of solar panels, solar charge controllers, circuit protection devices, mounting solutions, tools, and more. Supply yourself with all the arsenal you need to extend your power supply and adventure for longer with Alvolta.

Manual_ALV-10020B_V1.1_compressed.pdf

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Datasheet_ALV-10020B_V1_compressed.pdf

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Luna-S controllers are the 12/24V option in the Alvolta MPPT range, covering 20A to 50A of charging current for small to mid-size solar systems. Every model delivers up to 98% charging conversion efficiency and over 99% MPPT tracking efficiency. Built-in Bluetooth lets you monitor and adjust them through the Alvolta app.

All Luna-S controllers work with 12V and 24V systems, across a battery voltage range of 9 - 32V DC. They have presets for lithium, sealed lead-acid, flooded lead-acid and gel batteries, plus a custom option for setting your own charging parameters. Temperature compensation applies to lead-acid batteries only.

Choose based on your array size and system voltage. The 20A model suits up to 260W at 12V or 520W at 24V, the 30A up to 400W or 800W, the 40A up to 550W or 1100W, and the 50A up to 660W or 1320W. Always check that your array’s open circuit voltage stays below 92V at 25°C.

Every Luna-S controller has built-in Bluetooth, so you can check charging status and change settings through the Alvolta app. For an at-a-glance display, connect the external Alvolta Observer LCD screen. The controllers also have TTL (Modbus) and CAN (RV-C) communication for linking into compatible monitoring systems.

No. Luna-S controllers are IP32 rated, so they aren’t weatherproof and should be installed in a dry, well-ventilated, sheltered spot away from direct sunlight and rain. That also rules out boats and other marine setups. They’re rated to operate from -35°C to +65°C.

Product Specifications

System voltage	12 / 24 V
Rated charging current	20 A
Battery voltage range	9 - 32 V DC
Maximum PV open circuit voltage	92 V at 25°C
Maximum PV Input Power	260 W at 12 V, 520 W at 24 V
Power of solar panel (48 V)	3200 W
Zero Load Loss	>10 mA
Connection type	TR screw terminal
Maximum cable size	10mm² (8AWG)
Charging conversion efficiency	≤ 98%
MPPT tracking efficiency	> 99%
Temperature compensation factor	-3mV / °C / 2 V (for lead-acid batteries only)
Communication	Bluetooth, TTL and CAN (RV-C)
Operating temperature range	-35°C - +65°C
Ingress protection	IP32
Altitude	≤ 3000 m
Colour	Black
Dimensions	150 x 105.6 x 61.5 mm
Weight	0.65 kg
Warranty	3 years
Protection features	Battery Over-charging, Battery Over-discharge, Battery Reverse-polarity Interior Over-temperature, Over-current, PV Over-voltage, PV Reverse-polarity, PV Short-circuit Protection, TVS Lightning Protection and Reverse Charge Protection at Night