1Ø -Digital Current Protection Relay [900CPR-1-230V]

Measuring ParameterUnder Current, Over Current Protection for 1Ø System 
Electrical Connection1Ø-2W
Display3 Digit Liquid Crystal Display 
CT SettingCT Primary: 1A/5A – 999A, CT Secondary: 1A/5A (selectable)
Time RangesPower ON Delay: 0.5 – 99.9s,Trip Time Delay: 0 – 99.9s 
Recovery Time Delay: 0 – 99.9s, Response Time: < 200ms
AccuracyCurrent: ±1% of setting ± 2 digit, Time Setting Accuracy: ±5% of setting ± 100ms
Output Contact1 C/O (SPDT)
Output RatingNO: 5A, 250V AC, NC: 3A, 250V AC
Supply Voltage230V AC ±15%
Size35 mm
Mounting TypeDIN Rail Mount

1Ø-Digital Current Protection Relay, Auxillary Supply [900CPR-1-BL-U]

Measuring ParameterUnder Current & Over Current
Electrical Connection1Ø-2W
Display3 Digits Liquid Crystal Display With Backlight
CT SettingCT Primary: 1A / 5A – 999A, CT Secondary: 1A / 5A (selectable)
Time RangesPower ON Delay: 0.5–99.9sec, Trip Time Delay: 0–99.9sec,
Recovery Time Delay: 0–99.9sec (In Auto Reset Mode), Response Time: <200ms
AccuracyCurrent: ±1% of Setting ± 2 digits, Time Setting Accuracy: ±5% of Setting ± 200ms
Output Contact2 X 1 C/O (SPDT)
Output RatingNO: 5A@250V AC, NC: 3A@250V AC
Supply Voltage85 to 270V AC / DC


  • Monitoring of Lighting Systems
  • Heating Circuits
  • Machine Control