LYB217-LYB221 VD4 VCB Contact Arm 1250A For Vacuum Circuit Breaker

LYB217-LYB221 VD4 VCB Contact Arm 1250A For Vacuum Circuit Breaker

Model No.: LYB217-LYB221

• Specification
• Drawing

• VD4 VCB Contact Arm 1250A For Vacuum Circuit Breaker

  Model No.: LYB217-LYB221

  Contact Arms are key components in vacuum circuit breakers (VCBs). They are responsible for making and breaking contact when current flows through the circuit breaker. The design and material selection of the contact arms are critical to the performance, life, and reliability of the circuit breaker.

  Vulcanized contact arms generally refer to contact arms made of vulcanized rubber or similar materials that have been vulcanized to enhance their mechanical and electrical properties. Vulcanized contact arms play a key role in vacuum circuit breakers and switchgear, especially in electrical contact and disconnection operations.

  Features
  1. Electrical insulation performance:
  The vulcanized contact arm material has excellent electrical insulation performance, which helps prevent electrical leakage and short circuits.
  2. Mechanical strength:
  The vulcanization treatment enhances the mechanical strength and wear resistance of the contact arm, enabling it to withstand high mechanical stress and frequent operation.
  3. Environmental resistance:
  The vulcanized contact arm material generally has good moisture resistance, heat resistance, and chemical corrosion resistance, and is suitable for use requirements under different environmental conditions.
  4. Arc resistance:
  During the operation of the circuit breaker, the material of the vulcanized contact arm can effectively resist arc erosion and maintain stable electrical contact.
  5. Stability and life:
  The vulcanized contact arm can still maintain stable performance under high-frequency operation and generally has a long service life.
  6. Reduce contact resistance:
  Due to its good conductivity and stability, the vulcanized contact arm helps to reduce contact resistance and reduce energy loss.

  Application
  Vacuum circuit breaker:
  In vacuum circuit breakers, the vulcanized contact arm is used to open and close the circuit to ensure the stability and reliability of electrical contact.
  Switch cabinet:
  In switch cabinets, the vulcanized contact arm is used for various types of switchgear to ensure the stability of electrical connections and provide effective switching operations and protection functions.
  Other electrical equipment:
  Vulcanized contact arms can also be used in other electrical equipment, such as load switches, disconnectors, etc., to improve their performance and durability.

  Rated current	1250A
  Material Union	Copper&aluminum or T2 red copper
  Application	vacuum circuit breaker
  The minimum quantity	10pcs
  Payment terms	T/T, L/C, Western

   

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  Model No.	L1	L2
  LYB217	158	102
  LYB218	200	102
  LYB219	315	No slot
  LYB220	436.5	ZN85
  LYB221	511	No slot

   

  Our Advantages:

  1. We are specialized in sales of high-voltage electrical insulation products.

  2. Strict quality control and excellent after-sales service.

  3. Experienced staffs answer all of your question in fluent English.

  4. Customized design is available. OME&ODM are welcomed.

  5. Exclusive and unique solution can be provided to our customer by our well-trained and professional engineers and staffs.

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