NJBK9 Datasheet - CHiNT

NJBK9 Motor Protection Relay

NJBK9 Motor protection relay 1. General NJBK9 series motor protection relay (hereinafter referred to as “Pro-tecter”) is used for overload protection, locked rotor protection, phase failure protection, three-phase unbalance protection, grounding protection and PTC temperature protection for AC electromotors of a frequency of 50Hz with a rated insulation voltage of up to 690V and a rated operating current of 1A-200A during long-term and discontinuous operation. This protector is provided with RS4.

NJBK9 Features

* 4.4.1 Split mounting; 4.4.2 LCD display, key setting; 4.4.3 Has start delay function; 4.4.4 Has fault memory function, permits inquiry of fault record; 4.4.5 Has RS485 interface, supports MODBUS protocol, permits network communication; 4.4.6 With 4mA-20mA analog output interface; 4.4.7 Has two group

NJBK9-CHiNT.pdf