Emerson | ASCO Pulsar 451 Surge Suppressor


ASCO Pulsar 451
Surge Suppressor

Surge Suppresson for Medium to High Exposure to Energy Surges and Transients

The ASCO Pulsar 451 is a field proven, high performance surge suppressor which provides unsurpassed protection from damaging power surges and transients. Rated from 100 kA to 400kA the Pulsar 451 is typically installed at the service entrance or any location having medium to high exposure to energy surges and transients. High energy current diversion is handled by multiple, parallel systems of computer matched nonlinear voltage dependent metal oxide varistor arrays. The protection circuitry is packed with specially formulated sand and then epoxy encapsulated. This unique design insures unmatched levels of redundancy and exceptionally long product life. All Asco Pulsar 451 models are mounted in standard NEMA 12 enclosures. A door mounted status panel provides LED status indication of normal operation, under voltage, power loss, phase loss or component failure.
FeaturesProduct Features

  • Available with all modes of protection (L-N,1--G,N-Q, L-L)
  • Sine wave tracking EMI/RFI filtering
  • On-line system monitoring/testing for all suppression components in all modes of protection
  • Form C dry contacts for remote system monitoring
  • UL rated 300kAIC at 600VAC
  • UL1449, UL1283 and CSA listed
  • ANSI/IEEE C62.11, C62.41, C62.45, Categories A, B and C3 tested
  • Service network with ASCO trained and authorized technicians: Call 1 -800-800-ASCO

  • Computer-matched "smart" MOV array technology for surge protection
  • Unique sand-packed silver fuse network allows rated surge current to pass through without fuse operation
  • Life cycle tested to survive repeated surge currents
  • Optional features include: rotary disconnect switch, audible alarm, silencing circuitry and surge counter for normal and common detection modes
  • Product Information
    Application Guides
    Product Downloads
    Technical Specifications
    Misson-Critical Care
    Our comprehensive service portfolio extends beyond routine maintenance to include solution upgrades and technology training that ensure you get the most from your emergency power systems.

    1 800 800 ASCO (2726)