IEL d.o.o.
HR

Overcurrent Relay NR-200S

A multifunction numerical overcurrent relay for protection of medium-voltage and low-voltage networks. It integrates overcurrent, earth fault and breaker failure protection, with additional optional protection functions.

A multifunction numerical overcurrent relay for protection of medium-voltage and low-voltage networks. It integrates overcurrent, earth fault and breaker failure protection, with additional optional protection functions.

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  • ANSI 50 and ANSI 51 overcurrent protection

  • ANSI 50N and ANSI 51N earth fault protection

  • ANSI 51BF breaker failure supervision

  • Optional ANSI 49 thermal protection

  • Optional ANSI 46BC broken conductor protection

  • True RMS current measurement

  • 2x16 LCD and multicolor LED signalling

  • RS485, optical or Ethernet communication

Current inputs
1 A or 5 A
Frequency
50/60 Hz
Burden
<0.2 VA
Withstand
continuous 4 x In, 5 s 40 x In, 1 s 100 x In
ANSI 50
3 stages, I>, I>>, I>>>
ANSI 51
inverse-time stage IIT
ANSI 50N
2 earth fault stages, I0>, I0>>
ANSI 51N
inverse-time earth fault stage I0IT
ANSI 51BF
breaker failure supervision
ANSI 49
thermal overload protection option
ANSI 46BC
broken conductor protection option
Display
LCD 2x16, 5 dual-color LEDs
Relay outputs
3 + 1 programmable, 2 additional programmable outputs option
Communication
RS485 MODBUS RTU, optical option, Ethernet MODBUS TCP / IEC 61850 option
Supply
230 V AC or 24/48/110/220 V DC
Temperature range
-25 C to +60 C
Mounting
panel, DIN 43700
Dimensions
96 x 96 x 90 mm
  • MODBUS RTU
  • MODBUS TCP (option)
  • IEC 61850 (option)