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Solar Charge Controller | Plasmatronic PL20 Regulator

Supplier: Solar Panel Xpress

The Plasmatronic PL20 Regulator has settings that are adjustable and are stored in a non volatile memory.

Price Guide: POA


  • Adjustable: All settings are adjustable and are stored in a non volatile memory.
  • Display: User friendly alphanumeric LCD gives you words to explain the numbers.
  • Energy Metering: Shows daily charge and discharge amp hours.
  • Three Step Regulation: Boost, Absorption and Float modes with an optional periodic Equalisation mode. Can switch in series, shunt, or series + shunt modes.
  • History: Records change and load amp hours, max and min battery voltages and state of charge for the last 30 days. Remembers how much was really collected and used.
  • Generator Control: A sophisticated generator controller is included with four different modes of control available and a quiet time operation.
  • Event Control: A versatile event controller allows the load to be turned on or off under a user selected set of conditions. Can be used for lighting, pumping, frost control, etc.
  • Alarm: There is an adjustable low or high battery voltage alarm.
  • Second Battery: When the main battery is full, use the waste energy to charge an auxiliary battery. The PL supplies a signal to switch a relay to the second battery.
  • Remote Control: A computer can communicate with the PL using the PLI RS232 interface. Data can be downloaded and settings adjusted from far away.
  • Protection: Protected against short circuit, reverse flow, lightning. Low battery load disconnect function built in. Current limit over heat or over current. Conformal coating applied to protect against corrosion.
  • External Shunts: Two external shunts can be connected using the DC isolated PLS adaptor.


  • Nominal System Voltages: 12, 24, 32, 36, 48 Volts
  • Solar Charge Current Maximum: 20 Amps
  • Load Switch Current Maximum: 20 Amps
  • Voltage Drop at Rated Current: 0.4 Volts
  • Operating Ambient Temperature Range: -20 to +55°C
  • Supply Current: 9 mA
  • Battery Temperature Sensor Range: -50 to +50°C
  • Regulation Set Points: 4 set programs else user adjust
  • Dimensions: 100(H) x 109(W) x 41(D) mm
  • Weight: 320 grams