ECOPULSE PWM 20AMP
MORNINGSTAR ECOPULSE • PULSE WIDTH MODULATION SOLAR CONTROLLER • 12/24V 20AMP
Reference No. SR-EC20
Morningstar ECOPULSE PWM solar charge controller:
The EcoPulse is a pulse width modulation (PWM) solar charge controller within Morningstar’s Essential Series™ of products which provides essential off-grid battery regulation functions. This controller is easy to use, and designed for residential and leisure consumer applications.* Metered and non-metered versions of this product are available at 10, 20, and 30 amp charge ratings for 12 and 24 volt battery systems.
High Reliability – conformally coated circuit board and corrosion resistant terminals.
Robust Thermal Design – extruded aluminum heatsink dissipates heat quickly without using cooling fans.
Durable Casing – high strength polycarbonate case.
LED Fault Indications – alert when short circuit, over current, high voltage, and other error conditions take place.
Automatic Solar Based Lighting Control – field adjustable dusk ‘til dawn setting.
Adjustable Charge Settings – seven presets and a custom setting can be set via DIP Switches or by the meter display buttons.
Adjustable Load Control – load control can be adjusted via meter display.
Optional Meter – multi-lingual interface with scroll buttons to adjust the settings and display metrics.
Nominal Battery Voltage
12V or 24V auto-detect
Battery Voltage Range
<= 0.1% +/- 50mV
Maximum Battery Current
10A, 20A or 30A
Maximum PV open-circuit voltage
Load Current Rating
10A, 20A or 30A
<15mA; <20mA (meter)
(1) status, (3) Battery state of charge
Transient Surge Protection
1500 Watts (solar, battery, load)
-40°C to + 45°C
-40°C to + 80°C
conformal coating, marine-rated terminals
Dimensions (W x L x D)
15.3 x 10.5 x 5.5 cm
6.0 x 4.1 x 2.2 in
0.4 kg / 1.0 lbs
Wire Size Range
Power Terminals: 2.5 – 16 mm2 / 14 – 6 AWG
Battery/Temp. Sense: 0.25 – 1.0 mm2 / 24 – 16 AWG
IP20, Type 1
overload, short-circuit, high voltage, reverse polarity, high temperature, nighttime reverse current
overload, short-circuit, high temperature, reverse polarity
reverse polarity (no battery removal)
Bulk, Absorption, Float, Equalize
Temperature Compensation Coefficient
Absorption, Float, Equalize, HVD
Load & Lighting Control
Low Voltage Disconnect, Low Voltage Reconnect Settings
11.4 V / 12.6 V or Custom (x2 for 24 volt systems)
Dusk to Dawn
CE, TUV Listed