Shaanxi Longxiang Electrical Co., Ltd. is one of the most reliable manufacturers and suppliers of 3150a tulip contact with 64 pieces for vacuum circuit breaker in China. With abundant experience, we are committed to providing high quality customized products with competitive price. Welcome to buy premium 3150a tulip contact with 64 pieces for vacuum circuit breaker made in China here from our factory.
Products Description
The tulip-shaped contact is a component of electrical equipment. It serves as a primary circuit component and also functions as an operating contact. The assembly features non-magnetic stainless steel springs and supporting structures, and is used for the main circuit conductors of high-voltage vacuum circuit breakers, intermediate cabinets, and push-in circuit breakers.
Structure Types
- Single finger: Widely used for 630A /1250A, normal duty, low operation frequency
- Double finger: Preferred for ≥1600A, heavy continuous load, frequent operation, higher short-circuit withstand margin. Double finger is NOT mandatory above 1600A.
Working Principle
When the circuit breaker trolley is turned to the working position, the cylindrical static contact is inserted into the inner hole of the plum blossom contact, and the contact finger is stretched and elastically deformed. The beam spring continuously applies radial pressure to achieve multi-point line contact parallel diversion. The handcart can be turned out to disconnect, which is convenient for maintenance.
Product Highlight
- High Purity Copper Material: Made of high 99.9% pure T2 copper tube with 3mm thickness.
- Customizable Silver Coating: Customize thickness of silver coating for high abrasion resistance.
- Anti-Oxidation Treatment: Discoloring proof treatment prevents dropping caused by silver oxidation.
- Non-Magnetic Spring Design: High quality non-magnetic Ring-shaped stainless spring avoids eddy currents.
- Full Customization Available: Design and manufacture according to customer drawings and requirements.
- High Current Ratings: Available in 630A, 1250A, 1600A, 2000A, 3150A and 4000A options.
- Fixed contact insertion depth reference dimensions: 34 ± 2mm
Product drawing
Selection Guide
Rated current : confirm finger quantity & finger thickness
Single / double finger: consider continuous load, operation frequency, short-circuit requirement
Static contact OD & insertion depth: must match breaker & cabinet design
Silver plating thickness: select thick plating for high ambient temperature or salt-spray sites
Products Display
Company Certificate
CE
ISO9001
ISO14001
ISO45001
Our advantage
PROFESSIONAL MANUFACTURER
With more than 20 years of manufacturing and export experience, high cost-effectiveness and excellent after-sales service.
QUALITY GUARANTEE
We offer 24 months' warranty period, The product is of high quality and stable in price. It has passed various quality certification tests to ensure its quality.
PROMPT DELIVERY
Batch orders will be completed within 7 to 40 working days after receiving the advance payment..
ODM & OEM SERVICE
Tailor-made for each customer's requirements.
faq
Q:1.What material is the bundled spring?Why not carbon steel spring?
A:Springs are non-magnetic stainless steel. Carbon steel springs cause eddy current loss and abnormal overheating, which may burn contacts and fail temperature rise test.
Q:Single finger vs double finger plum blossom contact, how to choose?
A:Single finger is common for 630A and 1250A. Double finger is recommended for 1600A and above, heavy continuous load and frequent operation, for better current sharing and lower temperature rise.
Q:3.Can you make custom plum blossom contact? What is the lead time?
A:Custom dimensions (OD, height, finger quantity) per drawing are acceptable. Standard models in stock: 3–7 days. Custom orders: 7–15 days based on requirements.
Q:4. Is conductive grease needed during installation? Any notes?
A:A thin layer of conductive grease is acceptable. Do NOT over-apply. Excessive grease accumulates carbon and dust and leads to poor contact. Ensure coaxial alignment and correct insertion depth of static co
Q:5.Do you inspect the finished products?
A:Yes, all products will be inspected strictly to ensure full compliance with ISO 9001 standards as well as relevant industry standards such as IEC. Also we will provide goods inspection reports for your reference before shipment.
Q:How to pay?
A:T/T and L/C are acceptable , TT will be more appreciated. 30% T/T in advance and 70% balance before shipment.
