JB/T 8730-2008 (English Version) PDF

Scope: This standard specifies the general basic rules and requirements for CJT1 series AC contactors (hereinafter referred to as "contactors") using new copper-based silver-free electrical contacts in the main circuit, including terms and definitions, characteristics, normal operating and installation conditions, and structure. and performance requirements, test items and test methods, etc. This standard applies to contactors with AC 50Hz (or 60Hz), rated voltage up to 380V, and current up to 150A. Contactors are mainly used to frequently connect and break circuits over long distances, and are combined with appropriate thermal relays or electronic protectors to form motors. starter to protect circuits that may be overloaded.

JB/T 8730-2008 Referenced Document

GB 14048.1-2006 Low-voltage switchgear and controlgear. Part 1: General rules
GB 14048.4-2003 Low-voltage switchgear and controlgear-Electromechanical contactors and motor-starters
GB 14048.5-2001 Low-voltage switchgear and controlgear Part 5-1: Control circuit devices and switching element Electromechanical control circuit devices
GB/T 2423.1-2001 Environmental testing for electric and electronic products Part 2: Test methods Tests A: Cold
GB/T 2423.4-1993 Basic environmental testing procedures for electric and electronic products. Test Db:Damp heat,cyclic
GB/T 2828.1-2003 Sampling procedures for inspection by attributes--Part 1: Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection
GB/T 2900.18-1992 Electrotechnical terminology--Low voltage apparatus
GB/T 4207-2003 Method for determining the comparative and the proof tracking indices of solid insulating materials under moist conditions
GB/T 5169.11-2006 Fire hazard testing for electric and electronic products.Part 11:Glowing/hot-wire based test methods.Glow-wire flammability test method for end-products