This part of JB/T8591 specifies the basic requirements for CJ40 series AC contactors (hereinafter referred to as "contactors"), including: terminology, characteristics, normal operating and installation conditions, structural and performance requirements, test items and test methods, etc. Contactors are mainly used to connect and break circuits in power systems with AC 50Hz (or 60Hz), rated voltage up to 1140V, and current up to 1000A, and are combined with appropriate thermal relays or electronic protectors to form motor starters to protect possible Overloaded circuit.
JB/T 8591.3-2006 Referenced Document
GB/T 2423.1-2001 Environmental testing for electric and electronic products Part 2: Test methods Tests A: Cold