120 - 208V


Keep Mid-Level Office Equipment Functioning Properly

The Digital QC offers comprehensive surge suppression, noise filtration, and over voltage protection against harmful surges, spikes, EMI/RFI noise, electrical transients, and wiring faults to safeguard mid-level office equipment and a business’s profitability.

  • Patented Multi-Stage power protection and conditioning
  • Advanced EMI/RFI noise filter
  • Over voltage response time of 200 milliseconds
  • Cat5e ETL Verified Network surge and telephone line protection (on all networked products)
  • Power over Ethernet protection (on all networked products), and wiring fault protection (D5 series only)
  • Easily installs behind or beside connected equipment
Models: D5131NT, D5133NT, D5141NT, D5143NT, E523ZNT, E524ZNT, D91324T, D91424T, D11316T, D11416T, QC-L1430
  • Overview +

    The Digital QC’s Multi-Stage surge protection and filtering technology allows the lowest amount of surge energy to reach connected equipment. Only a harmless remnant gets through to guarantee equipment receives stable power and functions properly. Its advanced power filter virtually eliminates normal and common mode electronic noise interference that can cause error codes, malfunction and unnecessary service calls.

    It also includes catastrophic over voltage shutdown protection to safeguard equipment from sustained over voltage events, Cat5e ETL verified network surge and telephone line protection, and wiring fault detection to ensure faultless installs.

    Keep your mid-level office equipment and business up and running with the Digital QC.

  • Specifications +

    Contact ESP at 1-800-645-9721 for complete Physical Specs

    Contact ESP at 1-800-645-9721 for complete Electrical Specs

    Standards Compliance
    Complete standards compliance including UL 1449 (3rd Edition)

  • Video +

  • Downloads +

  • Warranty +

    This product includes a limited lifetime product and a connected equipment protection warranty. A protection guarantee that provides you with peace of mind that you’re covered for power related “Acts of God”- for life!

    We offer the most comprehensive guarantee in the industry because our products provide the most advanced protection available. We guarantee the product will be free from defects in material and workmanship from the date of original purchase and for as long as you are the original owner. In the event there are defects in the material and/or workmanship of your ESP product we will either repair or replace the product at no charge.

    Now that’s true power protection!

    Download Warranty