| Sign In | Join Free | My frbiz.com |
|
| Sign In | Join Free | My frbiz.com |
|
| Categories | Vacuum Circuit Breaker |
|---|---|
| Place of Origin: | Zhejiang, China |
| Brand Name: | XK |
| Certification: | ISO9001 / GB / IEC |
| Model Number: | ZN63-9784 |
| Supply Ability: | 100 Piece/Pieces per Month |
| Packaging Details: | EXPORTING PACKING |
| MOQ: | 1 Piece/Pieces |
| Price: | Negotiation |
| Type: | Vacuum |
| Poles Number: | 3 |
| Standard: | GBJ, JB,IEC |
| Rated Current: | 630A,1250A, 1600A |
| Rated Voltage: | 12KV |
| Mechanical life: | 10000 |
| keywords: | 11kv 12kv vacuum circuit breaker |
| Port: | NINGBO |
If it becomes milky white from its original finish of silvery
mirror then it indicates that the baffle is losing its vacuum. A
sputter shield, usually, made of stainless steel, is placed between
the contacts and the envelope in order to prevent the metal vapour
reaching the envelope as it reduces the breakdown strength between
the contacts. Inside the sputter shield the breaker has two
contacts, one fixed and the other moving contact.
The moving contact moves through a short distance of 5 to 10 mm depending upon the operating voltage. The metallic bellows made of stainless steel is used to move the lower contact. The design of the bellows is very important because the life of the vacuum breaker depends upon the ability of this component to perform repeated operations satisfactorily. The periphery of the end-cap is sealed to the envelope and the fixed contact stem is an integral part of one end-cap. One end of the fixed as well as moving contact is brought out of the chamber for external connections.
| Item | Unit | Data | |||
| Rated voltage | KV | 12 | |||
| Maximum working voltage | KV | 12 | |||
| Rated Current | A | 630-1250 | 630-1600 | 630-1600 | |
| Rated short circuit breaking current | KA | 20 | 25 | 31.5 | |
| Rated short-circuit switching current | KA | 50 | 63 | 80 | |
| Rated peak withstand current | KA | 50 | 63 | 80 | |
| 4S rated short-circuit withstand current | KA | 20 | 25 | 31.5 | |
| Rated insulation level | 1min Power frequency withstand voltage | KV | 42(fracture 48) | ||
| lmpulse withstand voltage | KV | 75(fracture 84) | |||
| Rated short-circuit current breaking times | Times | 50 | |||
| Rated Operating Mechanism Closing Voltage(DC) | V | AC,DC 110,220 | |||
| Rated Operating Mechanism Opening Voltage(DC) | V | AC,DC 110,220 | |||
| Contact opening distance | mm | 11±1 | |||
| Overtravel(the length of contact spring compression) | mm | 3.5±0.5 | |||
| Closing/Opening Time Difference Among Three Phase | ms | ≤2 | |||
| Contact closing bounce time | ms | ≤2 | |||
| Average opening speed | m/s | 0.9-1.2 | |||
| Average closing speed | m/s | 0.5-0.8 | |||
| Tripping Time | Maximum operating voltage | S | ≤0.05 | ||
| Minimum operating voltage | S | ≤0.08 | |||
| Closing time | S | 0.1 | |||
| The main circuit resistance of each phase | 630≤50 | 1250≤45 | 1600≤40 | ||
| Allowed Consumpted thickness of Contacts | mm | 3 | |||
Q1. Can we have our logo or company name to be printed on your
products or the package?
Yes,you can.Logo and company name can be printed on our products by
silk screen printing.You can send us the artwork by email in JPEG
or TIFF format.
Q2. What is lead time?
Usually 3-15 working days, On-Time delivery
Q3. Why us?
All products comply with the requirements of GB national standards,
IC, ANSI and other international standards, and the requirements of
company's technology standards.
Q4. How do you make our business long-term and good relationship?
1. Our high quality and competitive price are the most important
factors to maintain long-term and good relation -ship with our
customers.
2. Good service is our basic principle for every customers.
Q5. Can I have a visit to your factory before the order?
Sure,welcome to visit our factory.
|
12KV Ac Indoor Vcb Panel / Three Phase Vcb Breaker 630A 1250A 1600A Optional
12KV 24KV Outdoor Vcb Breaker High Voltage Three Phase IEC Standard
630A 12kV Vacuum Circuit Breaker / High Power Vac Breaker IEC Standard
High Efficiency Vacuum Type Circuit Breaker Outdoor Permanent Magnetic ZW32
10KV 24KV 11kv Vacuum Circuit Breaker / High Voltage Vcb IEC Standards
Drawout Type Outdoor Vacuum Circuit Breaker / Outdoor Vcb Panel 3 Phase
12 - 24KV Indoor Vcb Panel Three Phase Ac 50HZ High Efficiency ISO9001
1250A 1600A 630a Vcb Breaker Indoor Side Mounting Three Phase Long Service
12KV Outdoor Vcb Breaker High Voltage Three Phase 1000 Mechanical Life
24KV Indoor Vacuum Circuit Breaker Three Phase Ac 50 60HZ Frequency
