Welcome to the Schneider Electric Website

Welcome to our website.

Select your location

Welcome the the Schneider Electric French website. It looks like you are located in the United States, would you like to change your location?

Traduisez en francais

ASCO Model 318 Surge Protective Device

20-600VAC / 600-1000VDC(PV) | 25-50kA/Phase

The ASCO Model 318 DIN-Rail Mounted Surge Protective Device, makes it easy to embed state of the art transient protection into automated processes and provide protection for sensitive circuits. The ASCO Model 318 Surge Protective Devices use large block MOVs with a patented thermal detection circuit, eliminating the need for separate overcurrent fusing; allowing for a smaller footprint where space is an issue.

ASCO Model 318 Surge Protective Device
  • Features

    • UL 1449 Fourth Edition Recognized
    • Parallel Electrical Connection–Easy to install
    • 50kA per mode
    • All UL required OCP & Safety Coordination included inside – Supplemental Fusing/OCP Not Required
    • UL 1449-4: 20kA Inominal
    • UL 1449-4: 200kA SCCR


    • Large-Block 34mm sq. MOVs – Individually Fused & Thermally Protected
    • Diagnostic Monitoring - Visual Indicator Tabs
    • Optional Form C Normally Open/Closed Dry Contact
    • 5-Year Warranty


    • Banking, Financial and Insurance
    • Broadcast and Entertainment
    • Construction and Engineering
    • Data Center/Colocation/Hosting
    • Education
    • Fire/Alarm/Security
    • Healthcare
    • Manufacturing
    • Telecom

Reach Us

Have a question, complaint or is there some feedback you’d like to send us to make your experience with Schneider Electric better?