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Home > Surge Protection Devices

Surge Protective Devices (SPDs)

ASI offers a wide array of Surge Protection Devices (SPDs) to protect against transient over-voltages, spikes and impulses. In industrial settings, these types of surges cause equipment damage, lockup and malfunction which will translate into expensive downtime, repair and replacement costs. To address the multitude of industry applications and requirements, please review ASI's premiere line up of products and also look at industrial surge protector devices. The full breath of the product line includes both DIN Rail Mounted and Printed Circuit Board Surge Protection Devices as follows:

UL 1449 4th Edition Recognized DIN Rail Surge Protectors, Type 4CA:
  • Industrial surge protector devices for industrial applications
  • 1, 2, 3, and 4 Pole
  • Single, Split and Wye Three Phase
  • MOV, GDT and combination MOV/GDT
  • 1, 2, 3, and 4 Pole
  • Wind Turbine Industry Devices
  • Solar Industry Devices
  • Replacement Plug Modules (MOV & GDT Technology)

DIN Rail Surge Protection Terminal Blocks for Control Circuits:
  • Measuring/Control Systems Devices
  • High Frequency Bus Systems Devices

DIN Rail Surge Protective Modules for IT Network Protectors:
  • Universal Analog Telecommunications Protectors
  • Double Wire RS485 System Protectors
  • High Frequency Signal Transmission Two Stage Protectors

UL 1449 4th Edition Recognized Printed Circuit Board Protectors, Type 1 & 2


All ASI products are fully tested, with all applicable regulatory adherences and are extremely cost-effective when compared to similar competitive products. Please review details of each variation at underlying product pages. ASI's mission is to make the selection process an EZ experience via ASI-EZ.
DIN Rail Surge Protection Device
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DIN Rail Terminal Blocks
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Automation Systems Interconnect, Inc. • 4700 Westport Drive, Suite 500 • Mechanicsburg, PA • 17055

Remit To:  P.O. Box 1340 • Mechanicsburg, PA • 17055
Toll-Free: 1(877)-650-5160 • Phone: 717-249-5581 • Fax: 717-249-5542
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