JB/T 11153-2011 (English Version) PDF

Scope: This standard specifies the general basic rules and requirements for single-pole and bipolar AC contactors (hereinafter referred to as contactors), including terms and definitions, symbols, classifications, characteristics, relevant product information, normal use, installation and transportation conditions, and structure. and performance requirements, testing, etc. This standard applies to single-pole and bipolar AC contactors. The contactor is mainly used for AC 50 Hz (or 60 Hz). The rated operating voltage of its main contacts does not exceed 220 V. When the rated operating voltage is 220 V under the AC-8a or AC-8b use category, the rated operating current does not exceed 63 In the circuit of A, it is used to connect and disconnect the single-phase power circuit over a long distance. The contactors specified in this standard are generally not used to break short-circuit current. Therefore, appropriate short-circuit protection appliances should be installed when using them.

JB/T 11153-2011 Referenced Document

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