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
