Littelfuse SPDN Series of NEMA-style Surge Protective Devices Now Available

June 8, 2023

Littelfuse, Inc. has launched its NEMA-style Surge Protective Device (SPDN) series to safeguard equipment from transient overvoltage events lasting micro-seconds and help mitigate costly damage and downtime. Its small package, with more direct modes of protection, makes it ideal for places with limited space. The external panel mount is available for 120V to 480V nominal voltage sub-distribution board applications in construction, food and beverage, HVAC/R, oil and gas, light industrial and water/wastewater industries.

“The SPDN surge protection devices include more direct modes of protection such as line to neutral, line to ground, and neutral to ground depending on product selection,” stated Augusto Sanchez, Littelfuse Industrial Business Product Manager. “With more direct modes of protection in a compact footprint, the SPDN optimizes space and delivers cost efficiencies enhancing panel design flexibility.”

SPDN
SPDN
SPDN
SPDN

The SPDN series product features include:

  • More direct modes of protection in a smaller package, increasing protection and design flexibility
  • UL 1283 filtering helps mitigate effects on power supplies by decreasing zero crossings during ringing transients to prevent interference on performance or unsafe conditions (SPDN-A only)
  • Capability to clamp and withstand high-energy transients ensures low-residual voltage during high-energy events and higher nominal discharge current to prevent disruption, downtime and degradation or damage to equipment
  • Stacked Metal Oxide Varistor (MOV) design provides more high-transient voltage protection in a compact, multi-layered structure
  • Installation on the line or load side of the circuit breaker to simplify maintenance by turning breaker off during upkeep (SPDN-A installs on the load side only)
  • Thermally protected MOV eliminates catastrophic failure
  • External LED indicator quickly identifies service requirements to avoid loss of protection
  • Compact footprint offers easy retrofit in existing applications where space is limited

Go HERE for more information

Related Articles

Latest Articles

Changing Scene

  • SurgePure Corporation Expands into the Mid-West with New Representation Partner, Advance Electrical Agency

    SurgePure Corporation Expands into the Mid-West with New Representation Partner, Advance Electrical Agency

    August 1, 2025 SurgePure Corporation is proud to announce its new partnership with Advance Electrical Agency, who will represent the company across Saskatchewan, Manitoba, and Western Ontario. Led by principals Darren Churchwell and Bob Fiesel , the Advance team is part of a well-established agency known for representing some of the most respected manufacturers in… Read More…

  • Munden Partners with Valid Manufacturing in Atlantic Canada

    Munden Partners with Valid Manufacturing in Atlantic Canada

    August 1, 2025 Munden Enterprises has announced that they are back in the custom enclosure business through a new partnership with Valid Manufacturing Ltd. Expect Canadian-made, engineered solutions for industrial, utility, transportation, wastewater, renewables, and beyond. Whether you need a bare enclosure or a fully assembled panel, Munden is here to help. Reach out to… Read More…

  • JEHS Joins Forces with NOARK to Deliver Smarter Electrical Solutions in Ontario

    JEHS Joins Forces with NOARK to Deliver Smarter Electrical Solutions in Ontario

    August 1, 2025 NOARK Electric is pleased to announce a new partnership with Cambridge, Ontario based manufacturing representitive, JEHS. This strategic collaboration will expand NOARK’s reach and customer support across Ontario and beyond, bringing reliable and innovative electrical solutions to a wider audience. With over 50 years of combined sales experience, JEHS brings a strong… Read More…

  • BC Hydro Making it Easier and More Affordable to Connect New Homes

    BC Hydro Making it Easier and More Affordable to Connect New Homes

    July 24, 2025 BC Hydro is supporting the construction of new housing developments in growing communities by advancing changes to streamline upgrades and reducing the cost of new customer connections to BC Hydro’s electricity grid. “As communities across B.C. grow, so does the need for essential housing. We are committed to ensuring we’re ready to… Read More…