Steca Elektronik catalogue PV Off Grid (13|2019)

STECA PR 2020 IP
IP 65 version
STECA SOLARIX 2020-X2
Dual battery charge controller
The functionality of the Steca PR 2020 IP is based on the Steca PR line of solar
charge controllers. This is equipped with a large display which shows the
current state of charge (SOC) as a percentage and visually as a level meter.
State of charge recognition forms the core of the charge controller. The autoadaptive
state of charge algorithm results in optimal battery maintenance
and control. The Steca PR 2020 IP has been specially designed for operation
in difficult environments with high salt, moisture and dust content.
Product features
∙∙Shunt topology with MOSFETs
∙∙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
∙∙Negative earthing of one or positive earthing of several terminals possible
∙∙Integrated data logger (energy meter)
∙∙Evening, night light and daylight functions
∙∙Integrated self test
∙∙Monthly equalisation charge
Electronic protection functions
∙∙Overcharge protection
∙∙Deep discharge protection
∙∙Reverse polarity protection of module, load 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
∙∙Load disconnection on battery overvoltage
Displays
∙∙Graphical LCD
~ ~ for operating parameters, fault messages, self test
Operation
∙∙Simple menu-driven operation
∙∙Programming by buttons
∙∙Manual load switch
Options
∙∙Alarm contact (special version, needs to be mentioned on the purchase
order)
Certificates
∙∙Fit for use in tropical areas (DIN IEC 68 part 2-30)
∙∙Compliant with European Standards (CE)
∙∙RoHS compliant
∙∙Made in Germany
∙∙Manufactured according to ISO 9001 and ISO 14001
Steca accessories
∙∙External temperature sensor Steca PA TS20IP10
20 A
programmable
4x ø4,3
122
110 6
PR 2020 IP
Characterisation of the operating performance
System voltage 12 V (24 V)
Own consumption
12 mA
DC input
Open circuit voltage solar module
< 47 V
(at minimum operating temperature)
Module current
20 A
DC output
Load current*
20 A
Reconnection voltage (SOC / LVR) > 50 % / 12.6 V (25.2 V)
Deep discharge protection (SOC / LVD) < 30 % / 11.1 V (22.2 V)
Battery
End of charge voltage 13.9 V (27.8 V)
Boost charge voltage 14.4 V (28.8 V)
Equalisation charge 14.7 V (29.4 V)
Set battery type
liquid (adjustable via menu)
Operating conditions
Ambient temperature -10 °C … +50 °C
Fitting and construction
Terminal (fine / single wire) 16 mm 2 / 25 mm 2 - AWG 6 / 4
Degree of protection IP 65
Dimensions (X x Y x Z)
122 x 147 x 55 mm
Weight
410 g
Technical data at 25 °C / 77 °F
* Inverters must not be connected to the load output.
55
90
15
147
STECA
Quality
The Steca Solarix 2020-x2 is a state-of-the-art dual battery charge controller
that is ideal for use in leisure applications. It is equipped with a solar module
input suitable for all 72-cell crystalline solar modules in 24 V systems and for
all 36-cell crystalline solar modules in 12 V systems. Both main battery and
starter battery are charged simultaneously and continuously by the solar module.
90 percent of the available power flows into the main battery while 10
percent of the power is retained to keep the auxiliary battery fully-charged.
The charge power split can be adapted using the Steca PA LCD1 remote display.
The charge controller is equipped with a high-power load output fed by
the main battery only. The charge controller has a USB charge socket, which
can be used to charge smartphones and tablets. Connection of the Steca PA
LCD1 remote display is optional.
Product features
∙∙Serial topology with MOSFETs
∙∙Automatic detection of voltage
∙∙Voltage and current regulation
∙∙PWM control
∙∙Multistage charging technology
∙∙Current compensated load disconnection
∙∙Automatic load reconnection
∙∙Temperature compensation
∙∙Positive earthing of one or negative earthing of several terminals
possible
∙∙Integrated self test
∙∙Monthly equalisation charge
∙∙USB charge socket for smartphones and tablets
Electronic protection functions
∙∙Overcharge protection
∙∙Deep discharge protection
∙∙Reverse polarity protection of module (≤ 36 V), load and battery
∙∙Automatic electronic fuse
∙∙Short circuit protection of load and module
∙∙Open circuit protection without battery
∙∙Reverse current protection at night
∙∙Overtemperature and overload protection
∙∙Load disconnection on battery overvoltage
Displays
∙∙4 LEDs show operating states
Interfaces
∙∙StecaLink Bus
Certificates
∙∙Compliant with European Standards (CE)
∙∙RoHS compliant
∙∙
∙∙Made in EU
∙∙Manufactured according to ISO 9001 and ISO 14001
Steca accessories
∙∙Remote display Steca PA LCD1
20 A
4x 5
Solarix 2020-x2
Characterisation of the operating performance
System voltage 12 V (24 V)
Own consumption
22 mA
DC input
Open circuit voltage solar module
< 60 V
(at minimum operating temperature)
Module current
20 A
DC output
Load current
20 A
USB charge socket
5 V / 1.5 A
Reconnection voltage (LVR)*
12.5 V
Deep discharge protection (LVD)*
11.7 V
Battery
End of charge voltage* 14.1 V (28.2 V)
Boost charge voltage* 14.4 V (28.8 V)
Equalisation charge* 15 V (30 V)
Set battery type*
gel
Main / auxiliary battery charging
90 % / 10 %
ratio
Operating conditions
Ambient temperature -10 °C … +60 °C
Fitting and construction
Terminal (fine / single wire) 6 mm 2 / 10 mm 2 - AWG 10 / 8
Degree of protection IP 31
Dimensions (X x Y x Z)
190 x 120 x 57 mm
Weight
500 g
Technical data at 25 °C / 77 °F
* adjustable via Steca PA LCD1
190
177
USB
Charger
57
17.3 85
119.5
STECA
Quality
24 25