Solar Charge Controller Specifications
| SKU | SR-HP2440N |
|---|---|
| MPN | HP2440N |
| Controller technology | PWM |
| Supported battery voltage (V) | 12, 24 |
| Max charging current (A) | 40.0 |
| Max PV open-circuit voltage (V) | 55.0 |
| Max PV power at 12V (W) | 600.0 |
| Max PV power at 24V (W) | 1200.0 |
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| Supported battery chemistries | Gel, Flooded lead-acid |
|---|---|
| PV voltage-limit conditions | Manufacturer requires PV input below 55V (strict limit); battery-end voltage below 34V. Allow for cold-weather PV open-circuit voltage. |
| PV power rating conditions | HP2440N manufacturer rated power at the stated battery voltage; keep PV input below 55V. |
| Automatic battery-voltage detection | Yes |
| Adjustable charging settings | Yes |
| Lithium charging presets | Yes |
| Equalization supported | Yes |
| Temperature compensation | Yes |
| Built-in display | Yes |
| Bluetooth | Optional accessory |
| Communication interfaces | Optional RJ12 TTL232 / Modbus communication |
| Required monitoring accessories | Optional communication version and compatible Bluetooth accessory required; confirm fitted hardware |
| Load output available | Yes |
| Low-voltage load disconnect | Adjustable |
| Min operating temperature (°C) | -25.0 |
| Max operating temperature (°C) | 55.0 |
| Temperature and altitude derating | Charging stops above 60°C and resumes below 55°C; load stops above 70°C and resumes below 60°C. |
| IP rating | IP30 |
| Length (mm) | 166.0 |
| Width (mm) | 118.2 |
| Height (mm) | 52.6 |
| Weight (kg) | 0.7 |
| Protection features | Battery reverse polarity, PV reverse polarity, PV short circuit, Charge overcurrent, Load overload, Load short circuit, Overtemperature |
Description
The SRNE HP2440N provides 40A PWM solar charging for 12V or 24V battery systems. A backlit LCD and two-button controls make charging settings and system status easy to check.
Choose sealed lead-acid, gel, flooded or lithium charging settings to suit the battery manufacturer’s requirements. Temperature compensation supports lead-acid charging; equalization does not apply to gel or lithium settings.
Rated solar power is 600W at 12V or 1,200W at 24V. Keep PV open-circuit voltage below 55V, including its cold-weather rise. Programmable load modes support lighting and other DC applications.
USB output is provided. Bluetooth and RJ12 communication are optional functions, so confirm the fitted version and accessory requirements before planning remote monitoring.