ASCO Model 277 (Islatrol™ IE) Surge Protective Device

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.

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 recognized, CE

Benefits

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

Tech Specs

UL 1449 Surge Voltage Rating
  • 120V Normal Mode: 330 Volts
  • 120V Common Mode: 400 Volts
  • 240V Normal Mode: 600 Volts
  • 240V Common Mode: 800 Volts
Peak Surge Current Capability (8 x 20µs)
  • Line to Neutral: 15,000 Amps
  • Line to Ground: 15,000 Amps
  • Neutral to Ground: 15,000 Amps
  • Total: 45,000 Amps
Frequency Response (Forward-Reverse)
  • Normal Mode: 100 kHz to 50MHz - 90 dBMin
  • Common Mode: 5MHz to 50MHz - 60 dBMin
Typical Category A Ringwave (6kV, 200A, 100kHz)
Normal Mode/Common Mode
  • 3 Amp: 1 V/300 V
  • 5 Amp: 0.7 V/292 V
  • 10 Amp: 0.7 V/300 V
  • 20 Amp: 0.7 V/300 V
Typical Category B Ringwave (6kV, 500A, 100kHz)
Normal Mode/Common Mode
  • 3 Amp: 178 V/300 V
  • 5 Amp: 162 V/291 V
  • 10 Amp: 153 V/300 V
  • 20 Amp: 200 V/300 V
MCOV
  • 120 Volt: 150 VRMS
  • 240 Volt: 275 VRMS
  • Line Frequency: 47 - 63 Hz
  • Connection: Terminal
  • Mounting Type: DIN/Flange
  • Weight: < 3 lbs
Response Time
  • Normal Mode: < 0.5 ns
  • Common Mode: < 5 ns
  • Operating Temperature: -40°C to +45°C
    Derate Linearl to 60% at +70ºC
  • Operating Humidity: 0% to 95%