Mining AC 50Hz 1140V 630A Fuse Sealed Vacuum Circuit Breaker for Power Supply System

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Manual Type
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: Vcb
• Model NO.: ZK1-630/1.14
• Poles Number: 3
• Type: Fuse
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection
• Certification: ISO9001-2000, CE
• Rated Voltage: 1140V
• Current: 630A
• Color: Red / Grey
• Application: Coal Mine Flameproof Vacuum Feeder Switch
• Mechanical Life: 20000times
• Transport Package: Standard Export Packaging
• Specification: as specification
• Trademark: Liyond
• Origin: China

Product Description

 

 

         

Mining AC 50Hz 1140V 630A Fuse Sealed Vacuum Circuit Breaker For Power Supply System

 

ZK1-630/1.14 type vacuum circuit breaker is suitable for AC 50Hz, rated voltage 1140V and below, rated current 630A and below, as the main switch and branch switch of the power supply system.It can also be used for infrequent starting of large-capacity motors. And it is suitable for various protection devices to form various distribution switches, especially suitable for forming explosion-proof vacuum feeder switches in coal mines.

 

Features
(1) The arcing time is short and the breaking capacity is strong. The AC vacuum arc can be extinguished when the current crosses zero for the first time or before the zero-crossing after the contacts are separated, so it has a strong arc extinguishing ability.
(2) Small size and light weight. Because the contact distance is small, the burden on the operating mechanism is reduced, and the volume and weight are only 1/3 to 1/2 of the ordinary switch.
(3) Long life and small maintenance, suitable for heavy load and frequent operation.
(4) The operation work is small, and the vibration and noise are correspondingly reduced.
(5) It can not only cut off the power frequency current, but also have the ability to cut off the high frequency current.
(6) The arc is not exposed and will not cause the combustion and explosion of the surrounding flammable and explosive substances. Especially suitable for use in mines where there is a danger of biogas and coal dust explosions.

 

PS: Products with special requirements, specifications and dimensions that need to be improved can be designed and manufactured according to user requirements.
 

Parameters

Item	Unit	Data
Rated current	A	630
Rated voltage	kV	1.14
Limited Making Capacity	kA	12.5
Inherent Opening Time	ms	≤ 30
Closing Time	ms	≤ 100
Closing Bounce Time	ms	≤ 2
Mechanica life	times	20000
Electrical life	times	3000
Control voltage	V(AC)	220
Under Voltage, Shunt Release DC Supply	V	48
Closing power(W transient) W	W	2782
Closing power	W	48
Under-voltage power	W	5
Auxiliary switch	3NO, 3NC
Auxiliary contact capacity	Ue:AC380V Ie: 10A