KCC12-400/1140 Low Voltage Quick Switch

 

By summarizing users'experience over the years and according to users' opinions on the improvement of the original products on the market, our company redesigns a new generation of products, which greatly improves the appearance, performance indicators, reliability and ease of use and maintenance of the products. The optimized KCC12C series can be used reliably for capacitive load switching (AC-6a of transformer) and capacitor group switching (AC-6b). It can completely replace the old products. Users are welcome to choose to use it.

Product characteristics

Main circuit

Vacuum switch tubes are manufactured by well-known domestic manufacturers. Mature technology, reliable quality, good market reputation.

Fully insulated structure, unique structure, reasonable and compact, beautiful appearance, compact size.

The movable end connection is more reliable, the conductive section is large and the contact resistance is low.

The insulation of the main circuit is optimized and can be used in 2kV voltage level. The power frequency withstand voltage can reach 7kV, which can safely replace the old products.

- Electromagnetic systems

The use of fully sealed auxiliary switches greatly improves the reliability and safety of the auxiliary switches.

Optimizing the operation structure, reducing the starting power and maintaining power of the coil, so that the temperature rise is low, the service life is long and the coil is more reliable.

The auxiliary switch uses buffer at the beginning, reduces the action impact force and improves the reliability of the auxiliary switch.

- Movement structure

The flexible support of the rotating shaft, the force without sticking, and the small axial movement improve the performance and consistency of the motion.

Reasonable action mechanism ensures the coaxiality of the axially moving conductive rod of the vacuum tube and improves the performance and reliability of the contactor.

Enhance the contact pressure of the main contacts and improve the electrical and operational characteristics. The index is superior to that of similar products.

Convenient use and maintenance

The secondary circuit terminal has a function mark, and the route is distinguished by fixed color to prevent wiring errors and check wiring conveniently. The terminal location can be set according to user's requirements. The number of auxiliary contacts can be combined according to the use requirements.

Parameter list:

performance parameter	Unit	KCC11 1.14kV	KCC11 2kV	KCC11C 1.14kV	KCC11C 2kV
Rated operating voltage（Ur）	kV	1.14	2	1.14	2
Rated insulation level
1min Power Frequency Tolerance Voltage（Ud）	kV	4.2	7	4.2	7
Impulse Tolerance Voltage (Peak)（Up）	kV	12
Rated frequency（fr）	HZ	50
Rated working current（Ie）	A	400		400
Rated switching current of single capacitor bank（C2類）	A	—		200
Switch-off current of rated back-to-back capacitor bank（C2類）	A	—		100
Rated load and Overload Characteristics
(Category AC4) 50 closing operations	A	12Ie
(Category AC4) 50 trips	A	10Ie
Rated tolerable overload current 10s	A	8Ie
Contact resistance of main circuit	μΩ	≤200
Rated operating frequency
AC3	次/h	600
AC4		120
Short time (20s)		2000
Mechanical life (closing/dividing cycle)	萬次	100
Electrical durability (electrical life)
AC3	萬次	25 (turn-off current 6Ie, turn-off current 1Ie)
AC4	萬次	6 (close current open circuit current ie 6)
Insulation Voltage Resistance of Secondary Circuit to Ground		2000V50Hz（1min）
control circuit
Rated voltage（Us）（85%~110%）	V	ac./dc. 110V、220V、380V
Rated power
Electrical maintenance	W	Start < 2000W and keep < 50W
Operation time
Closing	ms	≤60
Switch off	ms	≤60
Auxiliary switch
Rated insulation voltage	V	AC380V
Rated operating voltage	V	AC380V，DC250V
Agreed heating current	A	10
Rated working current or power		AC-12/16A；AC-15/720VA；DC-12/5A
Number of contacts		Chang Kai	4	Normally closed	3

Click：KCC12-400 PDF