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ZN63 VS1-24 3 Phase Indoor 24kv 630A Vacuum Circuit Breaker

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ZN63 VS1-24 3 Phase Indoor 24kv 630A Vacuum Circuit Breaker

Country/Region	china
City & Province	shanxi
Categories	Battery Chargers

Product Details

1. ZN63 VS1-24 type 3 phase indoor 24kv 630A vacuum circuit breaker

ZN63-24 indoor H.V. vacuum circuit breaker is an indoor switchgear with three-phase, rated voltage of 24kV, control and protection for industrial and mining enterprises, power plants and substations, electrical facilities, and for frequent operation place adopting VET operating mechanism and circuit breaker integrated design can be used as a fixed installation unit can also be equipped with special advance mechanism, the composition of handcart unit used some of the main circuit can use the whole solid seal post with high reliability, maintenance-free, in order to achieve smaller circuit breakers, can be equipped with KYN28A 24 and other handcart switch cabinet. In the home it can also be used with fixed switchgear.

2. Main features:

⚫Mechanical and electrical durability During rated current, breaking times can reach to 10000, 20000 During rated
short-circuit current, breaking times can reach to 20, 30 and 50 times.

⚫With complete product portfolio Rated current from 630A to 4000A Rated short-circuit current form 20kA to 50kA

⚫ It has the features of series, strong versatility, convenient use and easy maintenance. All products have passed
500 running-in tests according to reliability principle in the factory before delivery, so as to ensure the reliability.

⚫ We will provide you with qualified and high-efficient after-sales service.

⚫ The circuit breaker has complete functions. It is used to switch on/off various loads as specified by DL standards, such as method 1-5, capacitor, out-of-phase conditions.

⚫ Easy maintenance Normally, it just needs to clean the operating mechanism and add lubricants.

⚫Vertical insulating tube Protect it from various environmental impacts.

3. Model

4. Main Technical Parameters

Main technical parameters for ZN63 Indoor Vacuum Circuit Breaker

Item		Unit	20kva	25kA	31.5kA	40kA	50kA
Rated Voltage		kV	24
Max working voltage		kV	24
Rated Current		A	630	1250	1250 1600 2500 3150	1250 1600 2500 3150	1250 2500 3150
Rated short circuit breaking current		kA	20	25	31.5	40	50
Rated short circuit making current (peak)		kA	50	63	80	100	125
Rated peak withstand current		kA	50	63	80	100	125
4s rated short time withstand current		kA	20	25	31.5	40	50
Rated insulation level	Power frequency withstand voltage	kV	42(fracture48)
	Impulse withstand voltage		75(fracture85)
Rated sequence of operation			0-0.3s-CO-180s-CO
Mechanical life		time	10000
Breaking times of rated short circuit breaking current		time	50
Operating voltage		V	AC/DC110, 220
Clearance between open contacts		mm	11±1
Over travel (contact spring reduction length)		mm	4±0.5
Three-phase opening/closing asynchrunous		ms	≤2
Contact closing bounce time		ms	≤2
Avarage opening speed		m/s	0.9~1.2
Avarage closing speed		m/s	0.4~0.8
Opening time	Under max operation voltage	s	≤0.05
	Under min operation voltage		≤0.08
Closing time		s	≤0.1
Each phase main loop resistance		µΩ	≤40
Allowable attrition thickness of moving and fixed contact		mm	3