Lyb117 630A Red Copper Fixed Contact for Vacuum Circuit Breaker

 LYB117 630A red copper Fixed contact  for vacuum circuit breaker 

LYB117 1600A fixed contact switchgear accessories
 

Switch cabinet fixed contact

Fixed contacts are mainly used in high-voltage switch cabinets, but not low-voltage.

The static contacts are installed in the switch cabinet contact box, one switch cabinet is equipped with six, and the ABC three-phase one-phase two each. A high-voltage connection through a circuit breaker is similar to the air circuit breaker principle we usually use. Take phase A as an example. The incoming power passes through the A-phase busbar-the circuit breaker A phase up-A phase down, and then out.

The circuit breaker has two moving contacts for each of the three phases of ABC. The moving contacts and static contacts are the same as the pens and pens we use, just inserted, but the insertion distance is greater than or equal to 15mm.

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