JCZA-12J(D)/400-4 AC High Voltage Vacuum ContactorDetailed product description：

Product Features
1. JCZA-12J (D)/400-4 AC high-voltage vacuum contactor is a modular structure with an electrical holding mechanism as the foundation, which can increase the tripping and mechanical protection of the circuit breaker
Closing device;
2. The high and low voltage circuits of the contactor are arranged in a front to back layout, with the main circuit located inside a closed insulation cylinder; 3. The insulation cylinder is made of epoxy resin injected using APEG technology, and its structure is three-phase integrated
4. The drive frame is molded from DMC; The transmission method is equal arm lever transmission;
5. Equipped with a mechanical anti closing device to ensure reliable opening and prevent accidental closing of the contactor. The J-shaped mechanism is equipped with manual opening operation
7. The D-type machine has dual winding coils to keep the current very low
8. Compact structure, beautiful appearance, small size, light weight, and reasonable installation of auxiliary equipment;
9. Can be operated frequently; High reliability, with a mechanical lifespan of 100000 cycles for J-type machines and 300000 cycles for D-type machines; 10. The closing and opening coils adopt a plastic sealed structure;
11. The auxiliary contacts are reliable, reasonable, and have a large capacity, with 6 openings and 5 closures for external use
12. Installation methods: formal, side, and upward installation;

Technical parameters of JCZA-12J (D)/400-4 AC high-voltage vacuum contactor

serial number	name		unit	parameter
one	rated voltage		kV	twelve
two	rated current		A	250，400
three	Rated closing current		A	four thousand
four	Rated breaking current		A	three thousand and two hundred
five	Maximum breaking current		A	four thousand and five hundred
six	Rated short-time withstand current 4s		A	four thousand
seven	Half wave allowable current (instantaneous value)		kA	forty-five
eight	insulation level	1-minute power frequency withstand voltage	kV	forty-two
		Full wave impulse withstand voltage		seventy-five
nine	mechanical life	J-type machine	ten thousand times	ten
		D-type machine		thirty
ten	Job Category			AC-3 AC-4
eleven	Rated working system			Long term work system
twelve	electrical life	AC-3	ten thousand times	ten
		AC-4		five
thirteen	Dimensions (width x depth x height)		mm	360 x 334 x 322

JCZA-12J (D)/400-4 AC High Voltage Vacuum Contactor