The Ameresco Solar 40J is a 40-watt, 12V monocrystalline solar panel designed for dependable operation in remote and hazardous environments. Certified for Class I, Division 2 locations, it’s engineered with durable materials, including a thick, scratch-resistant polyester backsheet and high-transmission tempered glass. With a robust junction box for flexible cable fittings and proven field performance, this panel is ideal for industrial monitoring, SCADA systems, and off-grid instrumentation worldwide.
Key Features:
- 40W monocrystalline panel with 12V DC output
- Class I, Division 2 certified for hazardous environments
- Scratch-resistant white polyester backsheet for insulation and durability
- Accessible junction box with 4-terminal screw block and cable gland compatibility
- Field-proven across harsh climates: deserts, offshore platforms, and icy mountaintops
Ideal Applications:
- Oil & gas monitoring and instrumentation
- Remote control and telemetry systems
- SCADA and RTU power systems
- Industrial and environmental sensors
- Off-grid lighting and remote communications
Electrical Specifications:
| Electrical Characteristics |
| Maximum Power (Pmax) | 40W (STC), 29.5W (NMOT) |
| Voltage at Pmax (Vmpp) | 18.2V (STC), 16.7V (NMOT) |
| Current at Pmax (Impp) | 2.20A (STC), 1.76A (NMOT) |
| Open Circuit Voltage (Voc) | 22.0V (STC), 20.8V (NMOT) |
| Short Circuit Current (Isc) | 2.37A (STC), 1.91A (NMOT) |
| Module Efficiency | 11.5% |
| Nominal Voltage | 12V |
| Power Tolerance | -0% / +3% |
| Efficiency at 200W/m² | <5% reduction (10.8%) |
| Max System Voltage | 50V |
| Max Series Fuse Rating | 6A |
| Limiting Reverse Current | 2.37A |
| Temp. Coefficient (Pmax) | -0.3983%/°C |
| Temp. Coefficient (Voc) | -0.2810%/°C |
| Temp. Coefficient (Isc) | +0.0373%/°C |
| NMOT | 38.7°C |
Mechanical Specifications:
| Mechanical Data |
| Dimensions | 650 x 537 x 50 mm (25.6 x 21.1 x 2 in) |
| Weight | 5.75 kg (12.7 lbs) |
| Solar Cells | 36 monocrystalline silicon cells in series |
| Front Cover | 3.2 mm high-transmission tempered glass |
| Backsheet | White polyester |
| Encapsulant | EVA |
| Frame | Silver anodized aluminum |
| Junction Box | IP65 with 4-terminal screw block, PG13.5, M20, 6–12 mm cable support |
Certifications:
- UL 61730-1/-2, UL 61215-1/-1-1/-2
- CSA C22.2 No. 61730-1/-2, UL121201, CSA C22.2 No. 213
- IEC/EN 61215 & 61730 series
- Class I, Division 2, Groups A, B, C, D
- Compliant with EU Directive 2014/35/EU
- Manufactured in ISO 9001 & ISO 14001 certified facilities
Warranty:
- 2-year materials and workmanship warranty
- 12-year minimum 90% power output guarantee
- Optional 25-year performance warranty available
