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ASCO Model 277 (Islatrol IE) Surge Protective Device

120/240 VAC | 45 kA

The ASCO Model 277 (Islatrol® IE) is a series-connected DIN or flange-mounted high-frequency noise filter and surge suppressor. Its ideal applications include critical industrial loads drawing up to 20 amps of continuous current, while typical applications include any microprocessor-based products, including industrial PLCs, OEM applications and motion control systems.

ASCO Model 277 (Islatrol IE) Surge Protective Device
  • Features

    • Surge current capacity – 45,000 amps
    • Transient protection in all modes: line to neutral, line to ground, and neutral to ground
    • LED status indication and form C contact for remote indication
    • DIN mountable enclosure
    • UL 1449, 1283, CUL recognised, CE


    • Multi-staged design, combining a unique hybrid clamping network with the active tracking technology of the ASCO SERIES 200 (Islatrol ® family)
    • 5-year warranty


    • Chemical/Petrochemical (excl. Oil and Gas)
    • Broadcast and Entertainment
    • Construction and Engineering
    • Healthcare
    • Manufacturing

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