Surge Protective Devices

ASCO SERIES 400 Surge Protective Devices

ASCO SERIES 400 Surge Protective Devices are UL listed, Type 1 family of surge protectors designed around the latest thermally protected MOV technology. This platform of products is available in any voltage and phase configuration and offers a wide range of surge levels and optional accessories. The compact design and robust performance make the SERIES 400 products an ideal choice for reliable, high-energy protection.

Best Suited For
  • Banking, Financial and Insurance
  • Broadcast and Entertainment
  • Construction and Engineering
  • Data Center/Colocation/Hosting
  • Education
  • Fire/Alarm/Security
  • Government
  • Healthcare
  • Manufacturing
  • Telecom
5 or 10 Year Warranty
How to buy


Thermally Protected MOV Technology
Surge Current Ratings – meets or exceeds industry performance requirements
UL 1449 3rd Edition Type 1 SPD, UL 1283 EMI/RFI filter, IEC and CE compliant


Short Circuit Current Rating of 200kAIC
Surge Impulse Rated and Tested
Series Status Includes – audible alarm, surge counters, form C contacts, and green/red status LEDs; including N-G overvoltage 

Services & Support


Frequently Asked Questions
Does ASCO provide a 10-mode Surge device?
Yes, the SERIES 400 is available in discrete 10-mode in Model 445 and 465.
What is the fault current rating of product?
The SERIES 400 is standard 200kAIC fault symmetrical current across the board.
Are metal enclosures available on SERIES 400
Metal enclosures are optional on Model 430, 440, 445 and standard on Model 460 and 465.


Sales In USA Change Location
ASCO Power Technologies (Surge Protective Devices)
14550 58th Street North Clearwater Florida 33760 USA
Product areas of focus: Surge Protective Devices


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