420 Surge Protective Device

400 Series

420 Surge Protective Device


Emerson Network Power > CHINA > Products > By Type > Surge Protection > Panelmount > 420 Surge Protective Device (formerly PowerSure CM)

The Emerson Network Power 420 is a compact surge protective device that protects line to neutral and neutral to ground. The 420 uses thermally protected MOVs, is tested as a UL 1449 Type 1 device and is in a NEMA 4X enclosure, making this an ideal choice for both panel and equipment locations.

Optional DIN Rail Mounting Assembly allows the 420 to be installed on a standard 35mm industrial DIN Rail. Part Number: 420-DIN (Sold Separately).

  • Can be installed in any location within the AC power system
  • Rated for UL Type 1 locations and housed in a weather resistant enclosure
  • Available voltages from 120V to 480V, single and three phase
  • Optional DIN rail mounting bracket available, Part Number: 420-DIN (Sold Separately)
  • UL Type 4X enclosure
  • Protection status includes green/red LEDs and summary alarm contacts for remote indication
  • 5-Year Warranty
Connection  type parallel connected
Maximum Continuous Operating Voltage Range 120VAC 150%, all others 115%
Short Circuit Current Rating (SCCR) 200kAIC
Protection Modes 50kA per Mode/50kA per Phase
Operating Frequency Range 47-63Hz
UL 1449 Location Type Type 1/Type 2
UL 1449 Nominal Discharge Current (In) 20kA
Status Indication - Standard Green/Red LEDs, Relay Alarm Contacts
Standard Enclosure NEMA 4X (Non-Metallic)
Certifications ANSI/UL 1449, Third Edition Type 1 or Type 2; cUL (ROHS Compliant)
Warranty 5 Years
Technical Specification

Surge Suppression Products
Contact our support department about your Surge Protection product.

Telephone: +1 607 721 8840
Toll-Free: +1 800 288 6169

Contact Support