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The Rich Solar MEGA 250 PRO 250 Watt 24V Solar Panel is a rigid 24V off-grid panel that delivers 250W from 128 N-Type TOPCon cells with 16 busbars and up to 25.1% efficiency. It measures 60.6 x 29.9 x 1.2 inches, weighs 26.9 pounds and is certified to UL 61730, IEC 61215 and CSA C22.2.
This listing offers two versions with the same specifications: the MEGA 250 PRO in Silver (RS-M250P) and the MEGA 250 PRO ONYX in Black (RS-M250PB). Both have a 36.9V maximum power voltage, pre-attached 12 AWG leads, 4 ft each, with MC4 connectors, and an IP68 junction box.
N-Type TOPCon cells with 16 busbars boost real-world output with better light capture and lower resistance. The 0 to +5W power tolerance means each panel delivers at least its rated 250W at standard test conditions.
The panel produces strong output in low light, and a -0.35% per °C temperature coefficient helps keep power stable in the heat. The 3.2 mm AR-coated tempered glass enhances sunlight absorption and durability.
Rich Solar notes that one MEGA 250 PRO supports 12V or 24V systems, and two or more panels can power 48V and higher systems. Fewer panels mean fewer cables and connection points.
The panel is built to withstand salt, ammonia, sand, high temperatures and high humidity. It is rated for 5,400 Pa snow loads and 2,400 Pa wind loads and operates from -40°F to 185°F, with an IP68 junction box and IP67 connectors.
Rich Solar runs more than 30 in-house tests, including UV, thermal cycling and humidity freeze. Every panel is PID resistant and 100% double EL inspected to prevent microcracks.
Fourteen pre-drilled holes in the anodized aluminum frame fit Z brackets, tilt mounts, pole mounts and ground mounts. The panel works with PWM and MPPT controllers and with on-grid and off-grid inverters.
Rich Solar backs both versions with a 25-year output warranty and a 10-year workmanship warranty. For MEGA Series panels, output is rated at more than 95% after 5 years, 90% after 10 years and 80% after 25 years.
Campers and RVs. Run a higher-voltage roof array with fewer panels and connections.
Tiny homes. Build a 24V or 48V off-grid system from matched panels.
Cabins and sheds. Charge a battery bank for lights, pumps and appliances.
Boats. Rich Solar lists boats among the uses for this panel.
Off-grid homes and larger arrays. Scale up to a high-wattage system one panel at a time.
Versus the 12V MEGA 250. Both share the same 60.6 x 29.9 inch size and 26.9 pound weight. The MEGA 250 PRO runs at 36.9V and 6.78A instead of the MEGA 250's 18.9V and 13.2A, which suits higher-voltage systems and simpler wiring.
Versus two 100W panels. One MEGA 250 PRO delivers more power than two 100W panels with half the mounts and connections.
Silver versus ONYX. The two versions share a Rich Solar spec sheet and the same specifications. Choose the finish that suits your roof.
This may be a good fit if
No. You only need a charge controller to charge a battery. An inverter is needed only to run AC appliances from the battery.
Not when a solar charge controller is installed. The controller prevents reverse current from draining the battery.
Yes. Cooler conditions can improve solar panel performance. Keep the panel clear of snow, dirt and shade, since buildup will stop it from generating power.
Rich Solar rates MEGA Series panels to output more than 95% of rated power after 5 years, 90% after 10 years and 80% after 25 years.
The Rich Solar MEGA 250 PRO 250 Watt 24V Solar Panel gives campers, tiny homes and cabins efficient N-Type TOPCon power with simpler wiring, in Silver or ONYX. At Outbound Power, we help customers pair panels with the right charge controllers, batteries and mounting hardware. If you have questions, our team is happy to help.
Rich Solar MEGA 250 PRO 250 Watt 24V Solar Panel Specifications |
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|---|---|
| Models | RS-M250P (Silver), RS-M250PB (ONYX, Black) |
| Maximum Power (Pmax) | 250W |
| Nominal System Voltage | 24V |
| Power Tolerance | 0 to +5W |
| Cell Type | N-Type TOPCon, 16 busbar, 128 cells |
| Cell Efficiency | Up to 25.1% |
| Maximum Power Voltage (Vmp) | 36.9V |
| Maximum Power Current (Imp) | 6.78A |
| Open Circuit Voltage (Voc) | 44.7V |
| Short Circuit Current (Isc) | 7.24A |
| Maximum System Voltage | 1500VDC |
| Temperature Coefficient | -0.35%/°C |
| Operating Temperature | -40°F to 185°F |
| Wind and Snow Load | 2,400Pa wind, 5,400Pa snow |
| Glass | 3.2 mm AR-coated tempered glass |
| Frame | Anodized aluminum, 14 pre-drilled mounting holes |
| Junction Box | IP68 |
| Connectors | IP67, MC4 |
| Panel Leads | 12 AWG, 4 ft each |
| Dimensions | 60.6 x 29.9 x 1.2 in |
| Package Dimensions | 63 x 32 x 3 in |
| Weight | 26.9 lbs |
| Certifications | UL 61730, IEC 61215, CSA C22.2 |
| Workmanship Warranty | 10 years |
| Power Output Warranty | 25 years (95% at 5 years, 90% at 10 years, 80% at 25 years) |
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