General descriptionThis series of vacuum contactors is designed for
use in power networks with an AC frequency of 50Hz. The main
circuit is rated for a voltage of 1140v, with a rated current of up
to 630A. It is suitable for making, breaking, frequently starting,
and controlling AC motors, as well as for forming magnetic starters
with a variety of protection devices, such as the JDB electronic
integrated protector, JR9 type over current protection device, and
resistance-capacitance absorber. This contactor is especially
suitable for forming anti-explosion magnetic starters.The contactor
conforms to IEC 60947-4-1, GB/T 14048.4, and JB/TN 7122 standards,
and its main performance indicators have reached international
levels. The product is available in two operation mechanism types:
coil operation mechanism type and permanent magnet operation
mechanism type. The coil operation mechanism type is typically
used, but customers can choose the suitable type according to their
specific application. Choose our 1.14kv 80A Three Pole Low Voltage
Vacuum Contactor for Mining Equipment for reliable and efficient
performance in your mining operations. Main technical
parameter ItemUnit63A80A125A160A250A400A630AMain circuit rated
voltagekV1.14Main circuit rated currentA6380125160250400630Main
circuit making capacityA/100times63080012501600250040006300Main
circuit breaking capacityA/100times50464010001280200032005040Main
circuit P.F. withstand voltagekV10Electrical life AC3Ten-thousand
times60Electrical life AC4Ten-thousand times6Mechanical life
timeTen-thousand times100 Rated operating frequency
AC3times/h600Rated operating frequency AC4times/h120Short-time
operating frequency(20s)times/h2000Clearance between open
contactsmm1.5±0.11.8±0.12.0±0.12.2±0.1Over
travelmm0.8±0.11.0±0.11.0±0.11.0±0.1Contact circuit P/F.
withstand voltagekV2Closing timems≤100Opening timems≤80
Packaging For Vacuum Circuit Breaker, pls
click: https://china-vacem.en.made-in-china.com/product-group/roqEnxmCTUYh/Vacuum-Circuit-Breaker-catalog-1.html
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