570 Surge Protective Device


A true hybrid device offering a coordinated multi-stage system of suppression, integrating the fast response time of the SAD (Silicon Avalanche Diode) modules with the high-energy capability of the MOV modules. Superior clamping at surge current ratings up to 375kA per mode or 750kA per phase.


  • Connection means: Parallel Connected
  • Agency Listing: ANSI/UL 1449 Third Edition, UL 1283 (Type 2 Locations),  cUL (Type 2 Locations),                                     FCC Part 15 Class B
  • Protection Modes: All modes standard(L-N, L-G, N-G, L-L); Optional – any combination
  • Surge Current Capacity: 250 to 750kAmps per phase depending on model
  • Surge Energy Rating (Primary SAD): 500 Joules
  • Fault Current Rating: 200kAIC
  • Location Type: Type 1
  • Nominal Discharge Current (In): 200kA
  • EMI/RFI Filtering: 63 dB max from 10kHz to 100MHz
  • SAD Matching: Within 1%
  • MOV Matching: Within 1V
  • Response Time : <.5 nanoseconds
  • Monitoring Features: Internal/External Status LEDs, Audible Alarm, Summary Alarm Contact (2 sets),                                         Built-in-test circuit tests MOV/fuse array capacities, Phase loss indication, Low                                               voltage indication, Loss of power indication, Surge counter (optional)
  • Enclosure: NEMA 12 standard Optional – NEMA 3R, 4, 4X and caseless
  • Line Frequency: 47-63 Hertz
  • Line Voltage: +/-15% nominal
  • Temperature: -40 to +60 degrees C
  • Relative Humidity: 0 to 95% noncondensing
  • Altitude: 0 to 18,000 feet
  • Audible noise: Less than 45 dBa
  • Warranty: 10-years parts, 5-year labor
  • Standard Features: Unit status indicators, Dual, isolated form C dry contacts
  • Optional Features: Integral disconnect