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In ZN12-12 basic type vacuum circuit breaker based on improved design of product variants is zn65-12type vacuum circuit breaker and its characteristics is upper and lower insulator as a paperback, switch cabinet relationship on qualifying the distance between the end, for equipped with miniaturized vacuum arc extinguishing chamber, and KYN1, KYN2, KYN4, KYN27, JYN2, JYN6 etc. supporting is the transformation of non oil type.

Table of main technical parameters

Parameter name unit value

Rated voltage KV 12

Rated current A 1250

Rated short circuit breaking current KA 31.5

Rated peak withstand current KA 80

Rated short-circuit withstand current KA 31.5

Rated short-circuit current KA 80

Rated short circuit duration S 4

Rated short-circuit breaking current number of times 100 times

Rated operation sequence sub -0.3s sub -180s- composite

Rated frequency HZ 50

Lightning impulse withstand voltage (peak) KV 75

Short term power frequency withstand voltage KV 42

The closing time of MS 40-85 (47+-7)

Switching time 40-85 MS (52+-7)

Opening time <=100 MS

Mechanical life time 20000

Rated capacitor group breaking current A 630

Energy storage motor rated power W 200

Energy storage motor rated voltage =110 V 200

Energy storage time <=15 S

=110 V 220 of the rated voltage of the electromagnet coil of the closing brake

Solenoid coil current A 0.9 1.8

The loss of pressure release rated voltage V =110 220

Overcurrent tripping device rated current A 5

Auxiliary switch rated current AC10 DC5 A

Switch interlocking device rated voltage V 110220

Explain：

ZN65A series switch has the following models: ZN65A12/630-20, ZN65A12/630-25,

ZN65A12/1000-20, ZN65A12/1000-25,

ZN65A12/1250-25, ZN65A12/1250-31.5,

ZN65A12/1600-31.5, ZN65A12/2000-31.5,

ZN65A12/2000-40, ZN65A12/2500-40,

ZN65A12/3150-40

Can be equipped with various models of the switch cabinet, can be made of hand cart type can also be fitted to a fixed type.