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| Model | SS-20L-24V |
| Charge Rating | 20 amps |
| Max PV Open Circuit Voltage | 60 volts |
| System Voltage | 24V |
| Min Battery Voltage | 6V |
| Load Control | Yes (LVD) |
| Load In-Rush Capability | 140 amps |
| Self-Consumption | < 8 mA |
| Voltage Accuracy | +/- 48mV |
| Operating Temperature | -40°C to +60°C |
| Storage Temperature | -55°C to +80°C |
| Transient Surge Protection | 1500W per connection |
| Certifications | UL1741, CSA, CE, RoHS, FCC Class B, Hazardous Locations |
| Warranty Period | 5 Years |
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Morningstar Sunsaver SS-20L-24V Charge Controller for 24 Volt PV Systems
SKU SS-20L-24VMorningStar SunSaver SS-20L-24V Gen 3
The SunSaver SS-20L-24V delivers maximum 20-amp charging capacity for 24V systems with integrated load control, where the "L" designation indicates Low Voltage Disconnect capability. It's engineered for the most demanding high-voltage solar applications requiring both maximum power and comprehensive load protection.
- Maximum 24V Power: Delivers 20 amps of constant voltage PWM charging to 24V battery systems from up to a 60V solar input with exceptional 140-amp surge capability.
- Integrated Load Protection: Automatically disconnects loads at 23.0V and reconnects at 25.2V to prevent battery damage from deep discharge cycles.
- Higher Voltage Input: Accepts up to 60V solar array input, enabling the largest panel configurations and maximum system efficiency.
- High-Capacity Systems: Designed for large-scale 24V solar installations, commercial applications, and industrial off-grid systems.
- 4-Stage Charging: Ensures battery health and longevity with a sophisticated charging algorithm including bulk, absorption, float, and equalize stages.
- Built to Last: Features a solid-state MOSFET design, anodized aluminum case, and epoxy encapsulation for maximum durability.
- Certified for Hazardous Locations: UL/CSA Class 1, Division 2, and ATEX/IECEx Zone 2 certified for safe operation in oil, gas, and mining environments.
SunSaver system wiring for a SES Class 1 Division 2 Solar System.
SunSaver SS-20L-24V Certifications
The SunSaver SS-20L-24V meets stringent international safety and performance standards for deployment in residential, commercial, and industrial applications with load control requirements.
- UL 1741 - Listed for electrical safety and grid-tie compatibility
- CSA C22.2 No.213 - Canadian electrical safety standards
- CE Marking - European Conformity for EU market access
- RoHS Compliant - Restriction of hazardous substances
- FCC Part 15 Class B - Electromagnetic interference compliance
- Hazardous Locations - UL/CSA Class 1, Division 2, Groups A-D
- ATEX/IECEx - Zone 2, Gas Group IIC for explosive atmospheres
- ISO 9001 - Manufactured in certified quality facility
Contact Us toll-free: (877) 297-0014
Read more about Morningstar SunSaver charge controllers.
Morningstar SunSaver SS-20L-24V Charge Controller Review
The SS-20L-24V employs advanced 4-stage PWM charging with automatic low voltage disconnect optimized for large-scale 24V installations. The 60V solar input capacity enables the largest panel configurations while the exceptional 140-amp load surge capability and built-in load control that automatically disconnects equipment at 23.0V and reconnects at 25.2V make it ideal for telecommunications systems, large commercial installations, and industrial applications where maximum power capacity and system efficiency are critical. The tropicalized construction with anodized aluminum enclosure, epoxy encapsulation, and marine-rated terminals ensures dependable operation from -40°C to +60°C in demanding field conditions. Manufactured in an ISO 9001 certified facility with automated precision assembly and 100% pre-shipment testing, each controller comes factory pre-configured for immediate installation.
Morningstar SunSaver Charge Controller Applications
Agricultural
Automation
Environmental
Lighting
Mining
Oil and Gas
Railroad
Residential
Rural Power
RV & Marine
Security
Telecom
Traffic
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