• Micro controller based
  •  Sensing current
  • Protecting against Phase Failure, Unbalance, Phase sequence, overloading, Over current/Short circuit, locked rotor, 
  • Auto/Manual resetting
  • Adjustable trip settings for UC/OC, O/L, Locked rotor & earth fault
  • Start-up delay adjustable
  • 2x1CO output relays and last ten faults logging
Supply Voltage
  • System Supply 380 - 440 V AC ± 20%, 45 - 55 Hz.
  • Auxiliary Supply 90 - 270 V AC / DC, 415 V AC
Internal CT For D3 DMPR1
  • Internal CT For D3 DMPR15 Amp or 20 Amp. or 50 Amp
Output Contacts
  • Output Contacts2 CO
Trip Setting

Parameters Range Resolution Fact setting Trip delay Range Factory setting By Pass Facility Reset  type
Ext. CT 50 - 600 5 Amp 100 Amp NA NA NA NA
Set current (FLC) 20 to 100 % of FLA 1 Amp 100 Amp NA NA NA NA
Over Load Above 110 % of Set Value NA NA IDMT class 2,5,10,15,20, 30 sec 2 sec Yes Auto/ Manual
Start up delay 0 - 60 sec 1 sec 10 sec NA NA NA NA
Under Current 30 - 90% 5% 50% 1- 60 sec 5 sec Yes Auto/ Manual
Over Current 110 - 350% 5% 200% 1 -10 sec 2 sec Yes Auto/ Manual
Current Unbalance 20 – 60 % 5% 50% 4 sec Fixed(+/- 1 sec) 4 sec Yes Auto/ Manual
Current Single Phasing Yes NA NA 4 sec Fixed(+/- 1 sec) 4 sec Yes Auto/ Manual
Reverse Phase Yes NA NA Instant ( < 2 sec) NA Yes (Password protected) Auto/ Manual
Stalling 200- 800% 50% 700% Instant ( < 2 sec) NA Yes Auto/ Manual
Earth Fault 10- 100% 10% 30% 0.5-10 sec 0.5 sec Yes Auto/ Manual
Short Circuit 600 - 999% 50% 800% Instant(< 2sec) NA Yes Auto/ Manual
Fault Memory
  • Fault MemoryLast 10 faults
Resetting Mode
  • Reset Auto / Manual
Display
  • Display8 X 2 AN LCD
Weight
  • Weight 400 + 150 GMS (Approx)
Dimensions (mm)
  • Overall (L x W x D)71 x 100 x 111
  • Overall (H x L x D)48x 96 x 55
  • Mounting (L x W)35 mm DIN Rail

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