Description
Steca PR 2020 Solar Charge Regulator
The functionality of the Steca PR 2020 IP is based on the succesfull Steca PR line of solar charge controllers. This is equipped with a a large display which shows the current state of charge (SOC) as a percentage and graphically in the form of a tank. The key component of the charge controller is the state of charge determination, which has been significantly improved. The auto-adaptive state of charge algorithm results in optimal battery maintenance and control over the module output of up to 480 Wp which can be connected to it. The Steca PR 2020 IP has been specially designed for operation in difficult environments with high salt, moisture and dust content.
Key Product features
- Hybrid controller
- State of charge determination with Steca AtonIC (SOC)
- Automatic detection of voltage
- PWM control
- Multistage charging technology
- Load disconnection depending on SOC
- Automatic load reconnection
- Temperature compensation
- Common positive grounding or negative grounding on one terminal
- Integrated data logger
- Night light function
- Integrated self test
- Monthly maintenance charge
- Integrated energy meter
Electronic protection functions
- Overcharge protection
- Deep discharge protection
- Reverse polarity protection of load, module and battery
- Automatic electronic fuse
- Short circuit protection of load and module
- Overvoltage protection at module input
- Open circuit protection without battery
- Reverse current protection at night
- Overtemperature and overload protection
- Battery overvoltage shutdown
Displays
- Graphical LCD display
- for operating parameters, fault messages, self test
Operation
- Programming by buttons
- Manual load switch
Options
- External temperature sensor
- Alarm contact
Certificates
- Fit for use in tropical areas (DIN IEC 68 part 2-30)
- Compliant with European Standards (CE)
- RoHS compliant
- Made in Germany
- Developed in Germany
- Manufactured according to ISO 9001 and ISO 14001
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PR 2020-IP
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Characterisation of the operating performance
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System voltage
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12 V (24 V)
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Own consumption
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12 mA
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DC input side
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Open circuit voltage solar module
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< 47 V
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Module current
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20 A
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DC output side
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Load current
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20 A
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End of charge voltage
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liquid 13.9 V (27.8 V);
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gel 14.1 V (28.2 V)
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Boost charge voltage
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14.4 V (28.8 V)
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Equalisation charge
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14.7 V (29.4 V)
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Reconnection voltage (SOC / LVR)
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> 50 % / 12.6 V (25.2 V)
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Deep discharge protection (SOC / LVD)
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< 30 % / 11.1 V (22.2 V)
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Operating conditions
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Ambient temperature
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-10 °C … +50 °C
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Fitting and construction
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Terminal (fine / single wire)
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16 mm2/ 25 mm2
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- AWG 6 / 4
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Degree of protection
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IP 65
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Dimensions (X x Y x Z)
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122 x 147 x 55 mm
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Weight
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350 g
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Technical data at 25 °C
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77 °F
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