Littelfuse Launches 1500 Volt Solar Fuses Rated 25 to 32 Amperage

EIN solar fuse 400

Dec 11, 2019

Littelfuse power control, and sensing, announced today the expansion of its SPXI series in-line and SPXV series string solar fuses with 25 to 32 amperage models in a compact 10 mm x 85 mm case size. Used in photovoltaic (PV) installations, these 1500 V DC fuses protect PV systems from overloads and short circuits to minimize damage to solar panels. The compact case size offers design flexibility when space is at a premium.

“As the solar panels create more energy, and efficiencies increase, so does the demand for higher protection on the photovoltaic infrastructure,” said Sakthidharan Krishnamoorthy, product manager, Littelfuse Industrial Business Unit. “With a 50 kA DC interrupting rating, these 1500 V fuses meet the latest code requirements – in a smaller case size – to make upgrading to a higher rating easier by using existing harnesses and fuse holders.”

Other key benefits of the solar in-line and string fuses:

  • Product label features QR code, offering access to part numbers, volts, SAP variables, programming terms, and date codes in real time
  • SPXI and SPXV solar fuses meet UL 248-19 and IEC 60269-6 photovoltaic fuse standard requirements
  • SPXI solar fuses can be electrically insulated by overmolding or heat-shrinking to streamline the set-up process
  • SPXV fuses are compatible with existing Littelfuse touch-safe fuse holders, which have been rerated up to 32 A 

Go HERE for more information

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