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2. 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. The protector uses flexible Rogowski coil to acquire current and features wide setting current range, high accuracy and convenient installation.
NJBK7 Datasheet
