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Mersen Surge-Trap® STXH 75kA Series

  • rebeccavanessendel
  • Jan 13
  • 2 min read

Premium Whole-Home Protection


The Surge-Trap STXH is UL Type 1 listed and fully complaint with UL 1449, 5th Edition, making it suitable for any 120/240VAC split-phase application. Equipped with TPMOV® technology, it stands out as the safest option in its class. With its compact design, superior performance, and proven reliability, the new 75kA model is ideally suited for premium whole-home protection. Meanwhile, the existing 50kA STXH remains the perfect choice for safeguarding subpanels and critical equipment such as HVAC systems, pool equipment, and backup generators.


The Surge-Trap® STXH Series provides critical surge protection across the entire home - from individual devices to complete electrical systems.


Features and Benefits of STXH 75kA:

  • Protection Capacity (surge rating) = 75kA

  • Whole Home Premium Protection

  • Fits ALL electrical panels in the market

  • 5-year product warranty plus $50k connected equipment warranty

  • Mersen's elite TPMOV technology - does not require additional overcurrent protection

  • Compact footprint for seamless integration with AC Disconnect Switches

  • NEMA 4X enclosure for outdoor or indoor use

  • Fits 1/2" knockouts with 18" leads for easy installation

  • Up to 3 Modes of Protection (L-N, L-L, and L-G)

  • Bright LED status indicator, visible from side profile through clear cover

  • 3-year manufacturer's warranty, plus up to $25k connected equipment warranty


Applications:

  • Residential Panels

  • HVAC systems

  • Pool and Spa equipment

Approvals and Standards:

  • ANSI/UL 1449 5th Edition

  • Type 1 SPD, File E210793

  • CSA C22.2, Type 1 SPD

  • ANSI/IEEE C62.41.1, C62.41.2

  • C62.45

  • UL 96A Lighting Protection

  • RoHS Compliant


Technical Specifications:

  • Frequency (Hz): 50/60 Hz

  • Flammability Rating: UL94-5VA

  • UL Category Code: VZCA

  • CSA File Number: 162842

  • Reach Compliant: Yes

  • Operating Temp.: -40 °C to 85 °C

  • Storage Temp.: -40 °C to 85 °C

  • UL File Number: E210793

Power-Flo Technologies is proud to partner with Mersen as they stand out as a leader, offering a comprehensive suite of surge protection solutions designed to meet the unique challenges of each motor. In today’s surge-prone electrical environments, the Surge-Trap® STXH Series delivers a dependable, code-compliant solution for protecting what matters most. Whether choosing the premium 75kA model for whole-home protection or the proven 50kA option for subpanels and critical equipment, the STXH offers unmatched safety through Mersen’s TPMOV® technology. Its compact, versatile design ensures easy installation across virtually all residential applications, indoors or outdoors. Backed by robust warranties and industry-leading certifications, the STXH Series provides lasting peace of mind and superior protection for modern homes.

 
 
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