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• Time of issue:2021-05-19
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(Summary description)Primary connector mainly refers to the connector used on the primary line (i.e. the main line) in the distribution cabinet, which completes the circuit conduction through the dynamic and static plug-ins.
Connectors (contacts) are the core parts of the connector to complete the electrical connection function. Generally, the contact pair is composed of a positive contact and a negative contact, and the electrical connection is completed by inserting and closing the negative and positive contacts.
The corresponding current is determined according to different cabinet types and circuits, and the general voltage is 380V, 660V or higher. The current is divided into 160A, 250A, 400A and 630A. The highest is 630A (theoretically speaking, generally not).
Corresponding to the primary connector, there are secondary connectors, which are mainly used for the secondary control circuit in the distribution cabinet. The functions are the same, the places used are different, and the corresponding current and voltage are lower. Generally, the voltage used in industry is AC 220 V or DC 110 v.