SPR-E-FLEX-50 Solar Panel / 50 W
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Product details
The semi-flexible SUNPOWER SPR-E-FLEX-50 solar panel features high-performance Maxeon® back contact cells. Unlike other solar cells, the unique copper-based construction makes these cells more resistant to power loss due to cell breakage. Corrosion resistant laminated into lightweight, high-quality, durable polymer materials, the panel provides a very high-yield and has a rugged design. It is light, up to 30% bendable, easy to install and can be fitted using construction adhesive (e.g. SIKAFLEX-291) or the existing stainless steel eyelets (inner Ø 7 m). The two, 450 mm long connection cables are equipped with standard 4 (MC4) compatible connectors. Supplied with a matching 5m long connection cable (2x 2.5 mm²).
SPR-E-FLEX-50 advantages
Technical data
SPR-E-FLEX-50 advantages
- High yield thanks to SUNPOWER Maxeon® back contact cells
- Flexible, robust and durable, long-life
- Simple, low-cost installation
- Wired ready for connection
Technical data
| Model | SPR-E-FLEX-50 |
| Nominal power (Pnom) | 50 Wp |
| Power tolerance | +/-3% |
| Nominal voltage (Vmpp) | 17,7 V |
| Nominal current (Impp) | 2,8 A |
| Open circuit voltage (Voc) | 21,5 V |
| Short-circuit current (Isc) | 3,1 A |
| Max. system voltage | 45 V |
| Recommended fuse for modular series circuits | 15 A |
| Connections | PV4-S, compatible with standard 4 (MC4) |
| Module connector cable | 2x 4 mm², length: 450 mm, Ø approx. 6.5 mm |
| Grommets | 316 stainless steel |
| Weight | 1,1 kg |
| Dimensions | 653 x 556 x 3/20* mm * without / with connection box |
by Hans-Guenther D.
7/30/2020
Verified purchase
7/30/2020
Verified purchase
See subsequent models of this product
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General question
Question:
Ulf W.
asked
on May 15, 2019
How is the connection cables from the solar panel linked to the 12V accumulator? Do I need some additional cables? And should I also need other tools in order to use this on a motorboat in addition to the energy I get from the already existing accumulators that are charged while driving? (Nimbus 24)
Answer:
Hi Ulf, you should never comimbine the PV module and battery directly! You have to use a charge controller, eg. 65601 (PWM) or 24958 (PWM) to prevent the production of explosive oxyhydrogen gas. The wiring will look like this: There are two single wires coming out of the PV-module, plus & minus. Each is 45 cm long and equipped with standard 4 solar connectors. With the module you will get a 5 m long 2-pole solar ribbon cable with 2x 2,5 mm² cable cross section, one side also equipped with standard 4 solar connectors, so that you can connect the PV-module with the 5 m cable. The other side of the cable is "open ended" and you have to connetct it to the solar input of the charge controller. Then you have to connect controller output plus and minus with the battery. In the plus wire you have to add a fuseholder/fuse within 20 cm distance from the battery, eg. 47018 and 47051. In the instructions of the charge controller you will find more details regarding max. cable length, cable cross section an fuse rating on the regulator's output side. Last but not least you have to think about how you will lead the 5 m cable under deck. Maybe you will need a feed through. A simple way is to drill a hole, feed the cable through this, seal with 17535 and and fix/save it with 10086 or 10087. You will find some differnt charge controller in our portfolio. Before we finally could recommend the optimum version for your purpose, we must know some additional details from you: You told us in your question, that the system voltage is 12 V, right? Do you want to charge one por two batteries, eg. motor- and service batterie? What type of battery do you have, lead, GEL, AGM? Do your batterie(s) have "normal" room temperature (20 - 25°C) or could they be warmer or colder?