Electronic Motor Protection Relay

NJBK10 Electronic Motor Protection Relay

Electronic motor protection relay (hereafter referred to as the protector) of the CHINT NJBK10 series, rated for AC 50Hz, rated insulation voltage up to 690V and below, rated working current 1A-200A, open-phase, three-phase imbalance protection, and long-term or intermittent AC motor work overload. Product satisfies requirements of IEC60947-4-1 standard.

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Features of NJBK10 Electronic Motor Protection Relay

  • Double-row LED display: the indicator lights show the problem and operational states, while the top row of LEDs shows the running current and the bottom row shows the set current;
    Features include open-phase, three-phase current unbalance protection, inverse time overload protection, and
    panel with start and stop buttons, terminal block that may be externally connected and has easier wiring for start and stop buttons;

Application of NJBK10 Electronic Motor Protection Relay

  • Motor protection and control for a variety of drives
  • Application-specific standard configurations resulting in a shorter relay setup and commissioning time
  • Preconfigured solutions for utility distribution and industrial applications

Specification of NJBK10 Electronic Motor Protection Relay

Model Rated current specification Rated current range A Suitable for motor power kW
NIBK10-10 10 1A-10A 0.5kW-5kW
NJBK10-50 50 5A-50A 2.5kW-25kW
NJBK10-200 200 20A-200A 10kW-100kW
Utility Category Rated current range A
Rated operating voltage (V) 240 380
Rated operating current (A) 1.5 0.95
Conventional thermal current (A) 5

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