The Eco-Si is the new junction box for crystalline solar modules for the Y-Sl product family. The Eco-Si junction box has a hermetically sealed construction, where cables and electronic components are over molded in a single production step. The Eco-Si is also developed for system voltages of 1,500 Volts which is higher than the regular 1,000. This permits higher voltages for future standards requirements as well (TÜV/UL) and application cases in photovoltaics.
According to Yamaichi Electronics, the Eco-Si junction box has an IP protection class of IP68. This protection class offers secure operation of solar module even in the harshest conditions. The Eco-Si junction box comes standard with three SMD safety diodes to protect the module efficiently in case of shadow. Disposal of the resulting heat is no problem, thanks to the "Hermetic Sealed" design.
The diodes are hermetically enclosed by the housing of the Eco-Si junction box. They can therefore discharge their heat optimally to the UL-listed plastic of the socket. This avoids overheating. Higher current resistance, less thermal load and thus also lower power loss are the advantages for the end user.
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