Welcome to wziep.com!
Categories
Welcome to wziep.com!
category： Power Distribution Equipment
reference price：￥$8.00 - $72.00
NKJ series inflatable high power DC contactor is suitable for DC high voltage, high current change applications.
In recent years, photovoltaic, energy storage, wind energy and electric vehicles have been used to vacuum the product or to fill the product with nitrogen and inert gas for arc extinguishing.
In the vacuum, because the pressure is low, the gas molecules are less, the breakdown voltage between the contact gaps is increased, and the possibility of arc formation is reduced to achieve the purpose of arc extinguishing.
Inflatable inert gas decomposes and ionizes at high temperatures and is very different from air. At the same time, inert gas molecules and their decomposition at high temperatures have the property of adsorbing free electrons and forming negative ions, which makes them burn in inertia. The arc has a lower arc voltage, a smaller arc diameter, and a smaller thermal inertia of the arc column. The above two methods have high requirements on the processability, and the airtightness of the product during the entire life process cannot be destroyed, otherwise the product life will be greatly shortened.
Product number | NKJ30A—1G—X—SH | NKJ50A—1G—X—SH | ||
Contact form | SH | SH | ||
Contact material | Cu alloy | Cu alloy | ||
Contact resistance | ≤1.9mΩ（12VDC/10A） | ≤1.9mΩ（12VDC/10A） | ||
Maximum switching voltage | 1200VDC | 1200VDC | ||
Maximum switching current | 250A/320V | 250A/320V | ||
Overload cut | 250A at 320VDC, 1 time | 250A at 320VDC, 1 time | ||
Mechanical life | 2x105time | 2x105time | ||
Electrical life | 1×104time（400V，30A） | 1×104time（400V，50A） | ||
Standard Voltage | 12VDC | 24 VDC | 48 VDC | |
Operating Voltage | 9.6~13.2VDC | 19.2~26.9 VDC | 38.4~52.8 VDC | |
Maximum voltage | 15VDC | 30 VDC | 60 VDC | |
Maximum pull-in voltage | 9.6 VDC | 19.2 VDC | 38.4 VDC | |
Applications include electric vehicles, fast charging piles, battery switching and backup, high voltage DC voltage switching control, circuit protection and safety control.
Wenzhou Xinchi International Trade Co., Ltd is a group company,There are four branch companies subordinate to it. Registered trademark is "suntree".
Main Products:DC-Fuse, Solar system parts,Solar Panel/Inverter/Cable/Connector, AC&DC Circuit Breakers, MCCB, ATS auto transfer switch, Isolator switch, Waterproof distribution box,DC combiner box, etc.
Quality &Standards:Products are producted per ISO9001:2008, IEC60947, IEC60898,CB, SAA, TUV,CE,SONCAP,ROHS, Nemko, PCT, CCC etc.
Main markets:Australia,New Zealand,&other worldwide markets.
Business strategies &Characristic:Stability, expertise and technological innovation are the corner stones of our company's business strategy.
We are trying to develop XinChi into a world-class Electrical manufactures
Q:When I can receive quotation and detail information after send the enquiry? A: Reply will be sent in 24hours. Q:What's the difference between you and other suppliers? A: First factory get CB certificate. High quality with good design.
