SS-20L-24V Solar Charge Controller – 24V 20A PWM

Description

The Morningstar SunSaver SS-20L-24V Solar Charge Controller is a rugged 24 Volt 20 Amp solar controller designed for reliable battery charging and load protection in off-grid and industrial solar systems. Featuring 4-stage charging, temperature compensation, and low voltage disconnect (LVD), it helps extend battery life while protecting sensitive equipment.

Built with a series design for efficient operation, this controller works with AGM and flooded batteries. Its durable construction and approval for hazardous locations make it ideal for demanding environments such as telecom systems, oil and gas installations, and remote power applications.

If you are working with a smaller system, see the 10 Amp version. For 12 Volt systems, see the 12 Volt option.

Key Features

• 20 Amp Solar Charge Controller – Designed for 24 Volt battery systems
• Low Voltage Disconnect (LVD) – Protects batteries from over-discharge
• 4-Stage Charging – Helps extend battery life and improve performance
• Temperature Compensation – Adjusts charging for changing conditions
• Compatible with AGM and Flooded Batteries
• Series Design – Efficient, cool, and reliable operation
• Telecom Mode – Designed for sensitive electronic loads
• LED Status Indicators – Multi-colour LEDs display battery condition and system status
• Electronic Protection – Protects against wiring mistakes and system faults
• Factory Pre-Set – Easy installation with no required setup
• Fully Automatic Operation – Includes fault recovery

Rugged Design

• Wide Temperature Range – Operates from -40°C to +60°C
• Marine Rated Terminals – Built for durability in harsh environments
• Anodized Aluminum Case – Corrosion-resistant housing
• Hazardous Location Approved – Suitable for industrial and oil & gas applications
• High Quality Manufacturing – Produced in an ISO 9000 certified facility

Common Applications

• 24 Volt off-grid solar systems
• Telecom systems
• Oil and gas installations
• Remote monitoring equipment
• Industrial battery charging systems

Specifications

• Model: SS-20L-24V
• System Voltage: 24 Volt
• Charge Current: 20 Amps
• Battery Compatibility: AGM and Flooded
• Charging Profile: 4-stage charging with temperature compensation
• Low Voltage Disconnect: Yes (LVD)
• Operating Temperature: -40°C to +60°C
• Factory Configuration: Pre-set
• Data Sheet: SunSaver Data Sheet (PDF)

Frequently Asked Questions

What is the SS-20L-24V used for?

This controller is designed for 24 Volt solar systems when reliable battery charging and load protection are required such as industrial and off-grid applications.

What does low voltage disconnect (LVD) do?

LVD protects your battery by disconnecting the load before the battery becomes too deeply discharged which helps extend battery life.

What batteries are compatible with this controller?

The SS-20L-24V works with 24 Volt AGM and flooded lead-acid batteries.

When should I choose a 20 Amp controller?

A 20 Amp controller is a good option for larger solar panels or systems with higher current requirements to ensure safe and efficient operation.

Is this controller suitable for harsh environments?

Yes – this controller can be used in temperatures ranging from -40°C to +60°C and is approved for use in hazardous locations which makes it ideal for demanding industrial and outdoor applications.

Is it easy to install?

Yes. The controller is factory pre-set and fully automatic and has built-in protection against wiring mistakes and system faults.