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  • Microcontroller based.
  • Sensing voltage current and temperature
  • Protecting against Phase Failure
  • Unbalance
  • Phase sequence
  • Under/Over Voltage
  • Overloading
  • Winding over temperature
  • Over current/Short circuit
  • Auto/Manual resetting
  • Locked rotor & earth fault
  • On delay & start-up delay adjustable
  • 2x1CO output relays and serial communication port
    Supply Voltage
  • System 415V AC +20%,-25% 3Ø, 3 Wire, 50 / (60)Hz ± 3%
  • Auxillary 90-270 V AC/DC
    Output
  • Output1 CO for Trip & 1 CO for Alarm/RS 232 Port (Optional)
    Input
  • Input External CTS ( CT5/CT20/CT50 )
    Power Consumption
  • Power Consumption8 VA
    Trip Setting
Setting Trip Level Trip Delay LED Reset
Mode
Power ON - - * -
Unbal/Ph.Rev 1% - 20% 1-10 Secs. * Auto / Manual
Under Voltage 75% - 95% 1-10 Sec * Auto / Manual
Over Voltage 105% - 120% 1-10 Secs. * Auto / Manual
Current unbalance 20-60% of Imax 1-10 Secs. * Multi
Attempt
Current phase Loss - 1-10 Secs. * Multi
Attempt
Under Current
(dry run)
} for
CDR-M
30-90% of Imax 1-10 Sec * Multi
Attempt
Over Current /
Short Circuit
300% - 800%
of Imax
2-25 Secs. * Multi
Attempt
Overload 2/5/10/15/20 Sec. As per IDMTL char. * Manual
Lock Rotor 200%-500% of Imax 1-10 Secs. * Manual
Earth Fault 30% - 80% 0.5 - 10 Secs. * Manual
Winding Overheat 4K1 - 5K6 1-20 Secs. * Auto/
Manual
    Display
  • Display16x2 (Back lit LCD Display)
    Dimensions (mm)
  • Overall (L x W x D)166 x 216 x 80
  • Mounting (L x W)153 x 203
    Approx Weight Unit
  • Approx Weight600 gms
    Note:
  • Wherever not specified Contact Rating: 5A @ 230 V AC (resistive)
Relay contact position shown in 'Power off' condition
Suitable for Panels in Following Apllications:
  • Heavy Duty Motors
  • Crane Motors
  • Screw Compressors
  • AHU Fan Motors
  • HT Motors
  • Pump protection
  • Pump House Automation

All Products