ZKTJ-160-630/10KV( Ⅰ type ceramic vacuum switch tubeDetailed product description：

purpose
ZKTJ-160-630/10KV (I) ceramic vacuum switch tube adopts high alumina ceramic as the insulation shell and high vacuum 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 maintenance of the contacts. 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-160-630/10KV (I) 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 10KV;	Rated working current of 160, 250, 400, 630A;
Rated connection capacity 1.6, 2.5, 4, 6.3KA, 100 times	Rated breaking capacity 1.28, 2, 3.2, 5.04KA, 25 times
Ultimate breaking capacity 160-400A 4.5KA 3 times	Rated short-time withstand current 1.28, 2, 3.2, 5.04KA;
Rated short-circuit duration 10S	Power frequency withstand voltage 32KV;
Electric lifespan 100000 times	Mechanical lifespan of 1 million cycles
The rated opening distance of the contact is 4 ± 0.4mm;	Contact self closing force 85-125N;
The reaction force at the rated opening distance of the contact is 100-130N;	The contact resistance under the self closing force of the contact is less than 120 μ Ω
The allowable wear thickness of the contact is 1mm;	Equipped with contactor CKG3-160-630A/10 type

External dimensions and installation dimensions

ZKTJ-160-630/10KV (Ⅰ) type ceramic vacuum switch tube