NJBK7 - Motor Protection Relay

Datasheet Details

Part number	NJBK7
Manufacturer	CHiNT
File Size	179.11 KB
Description	Motor Protection Relay
Datasheet	NJBK7 Datasheet

Overview

Type designation N JBK 7 - 800 / □ Relay Protection Relay NJBK7 Motor protection delay 1.

General NJBK7 series motor protection relay (hereinafter referred to as protector) is used to provide overload, locked rotor, phase failure, three-phase current unbalance, ground and PTC temperature protection for AC motors with a frequency of AC 50Hz, a rated insulation voltage of up to 690V and a rated operational current of 80A-800A that operate continuously or intermittently.

Key Features

wide setting current range, high accuracy and convenient installation. The protector has RS485 interface and 4mA20mA analog transmission interface, permits network communication and can realize remote monitor and control and fault inquiry of motors by means of upper computer. The protector is genenrally used in combination with AC contactor. Standards: GB 14084.4, IEC 60947-4-1. Rated control supply voltage (AC220, AC380, AC/DC100V-240V) Specification code Design sequence No. Motor protection r.

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NJB1-X	Protection Relay
NJB1-X1	Protection Relay
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