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Electromagnetic Contact Relay Cut-off

Electromagnetic Contact Relay Cut-off

Electromagnetic contact relay cut-off The common band switch and the shift switch of the universal meter are all rotary switches. There are two types of switch: one is the BBM (Break Before Make) contact type, which is characterized in that the movable contact first breaks the front contact...

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Electromagnetic contact relay cut-off



The common band switch and the shift switch of the universal meter are all rotary switches. There are two types of switch: one is the BBM (Break Before Make) contact type, which is characterized in that the movable contact first breaks the front contact point during the transposition. After the contact is connected, there is a state in which both the front contact and the back contact are disconnected: the other is the MBB (Make Before Break) contact type, which is characterized in that the moving contact has a contact with both front and rear contacts when the switch is in position. . Then disconnect the front contact and maintain contact with the rear contact. In the circuit design, the appropriate rotary switch should be selected according to circuit usage and circuit safety.

Rotary switch, because of its use, the overall use of sealed structure, there is a certain degree of waterproof effect, the basic can reach the IP65 waterproof level.
At the same time, it needs to use a relatively hard and durable metal material, and there is a difference of 2 or 3 gears in the gear.

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