Chint original NJBK6 NJBK6-36 CHNT Overload phase failure 3 phase current unbalance and locked rotor AC Motor Protection Relay

Chint NJBK6 series motor protection relay is used to provide overload, phase failure, three-phase current unbalance and locked rotor protection for AC motors with a frequency of AC 50Hz, a rated insulation voltage of below 690V and a rated operational current of 1A~36A that operate continuously or intermittently.

Standards: IEC 60947-4-1

Operating conditions
1 Altitude: should not exceed 2000m;
2 Ambient tempeature: -5℃~+40℃, and the average temperature in 24h should not exceed +35℃;
3 Atmospheric conditions: The relative air humidity should not exceed 50% at the maximum temperature of +40℃. The
relative humidity may be higher at lower temperatures, for example, the air humidity can be up to 90% at +20℃. Special measures should be taken if condensation occurs on the product occasionally due to temperature variation;
4 Pollution degree: 3;
5 The inclination between the mounting plane and the vertical plane should not exceed ±5°;
6 In non-explosive media that do not contain a sufficient amount of gas or conductive dust to cause metal corrosion or
insulation failure;
7 In places with rain and snow protection equipment and not full of vapor;
8 In places where there is no significant shake, impact or vibration;
9 Mounting category: Ⅲ