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Specification Sheet Instructions


This versatile solar regulator is suitable for use with all types of photovoltaic panels and wet or sealed lead acid batteries. The internal microprocessor controller provides the optimal charging current and voltage according to the actual stage of charge and type of battery. The 3-stage (Bulk, Absorption & Float) charger ensures proper maintenance of lead acid type batteries, maximising their service life. For wet cells, there is an equalisation function, which automatically cycles the battery once a month for two hours. The unit also automatically disconnects the battery if the terminal voltage drops below an adjustable level (as low as 16V), and then reconnects it once it is charged again. It features an LCD panel that displays battery voltage, the solar panel voltage and the active charge mode. Unlike other regulators, you can see the true status of the charging system at a glance.


  • User adjustable charging voltages
  • Microprocessor control PWM and 3 stage charging algorithms.
  • Bulk, Absorption & Float Charge status on LCD Display.
  • Ampere Hour logging read outs in 3 sets, today and last 2 days.
  • 5 State LED Indications of battery levels.
  • Electronic Overcharge Protection & Back Current Blocking to PV panel.
  • Over Temperature Protection of PV Charge Controller's electronic circuit.
  • Dusk to Dawn automatic ON-Off with 10 selectable on-off programs.
  • Adjustable battery low voltage level disconnect and reconnect for DC output.
  • Optional Temperature Sensor for compensated battery charging.

Connection Diagram

Information & Downloads


  • Battery voltage: 24V
  • Continuous load / charge current: 20A
  • Maximum charge current (5 mins.): 25A
  • Maximum load current (5 mins.): 25A
  • Voltage across terminal (PV to battery): 0.8V
  • Voltage across terminal (battery to load): 0.5V
  • Recommended wire size: #12AWG
  • Weight: 0.47kg
  • Dimension: 150(W) x 85(D) x 45(H) mm
  • Fuse: 30A
  • DC load control mode ( For DC load terminal)
  • Low Voltage Disconnect(LVD): 16-32V
  • Low Voltage Reconnect(LVR): 16-32V
    • *Specifications are subject to change without notice.

Warranty & Returns


We offer 12 months warranty on this product from its date of purchase. This is available from Altronics stores, online purchases or Altronics resellers. In accordance with our full warranty terms we will repair, replace or refund if goods you have purchased from us are defective.


Not withstanding our warranty policy, if you are dissatisfied with our goods or service you may return the goods within 14 days of our despatch date. Simply contact us for a return authorisation number and we will refund your purchase in full, less transport costs on receipt of goods. All returned goods must be in as sold condition including all packaging, instructions, invoices etc.

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