ZKTJ-160-400A/6KV(1) type ceramic vacuum switch tubeDetailed product description：

Purpose:
ZKTJ-160-400A/6KV (1) ceramic vacuum switch tube adopts high alumina ceramic as the insulation shell, and high vacuum is used as the medium inside the tube. Therefore, it has a small volume, high voltage resistance, strong breaking ability, long service life, and does not require contact maintenance. Especially due to its advantages of not exposing the arc and being safe and reliable, it is widely used in industrial sectors such as coal, power, chemical, metallurgy, and petroleum.

ZKTJ-160-400A/6KV (1) ceramic vacuum switch tube, equipped with a suitable operating mechanism, can be assembled into high, medium, and low voltage AC circuit breakers or AC contactors, used in high, medium, and low voltage distribution control devices for remote connection and disconnection of motors, transformers, capacitor banks, etc. It is particularly suitable for forming explosion-proof magnetic starters.

technical parameters

Rated working voltage 6KV;	Rated working current 160-400A;	Rated connection capacity 1.6~4KA, 100 times
Rated breaking capacity of 1.28-3.2KA, 25 times;	Ultimate breaking capacity 4.5KA, 3 times	Rated short-time withstand current 1.28-3.2KA;
Rated short-circuit duration of 10S;	Power frequency withstand voltage 23KV;	Electric lifespan 100000 times
Mechanical lifespan of 1 million cycles;	The rated opening distance of the contact is 3 ± 0.3mm;	Contact self closing force 85-100N;
The reaction force at the rated opening distance of the contact is 100 ± 120N;
The contact resistance under the self closing force of the contact is ≤ 120 μ Ω;
The allowable wear thickness of the contact is 1mm;
The maximum mass of the switch tube is 1kg;
Equipped with contactor CKG3-160-400A type.

External dimensions and installation dimensions