KYN 28-12 Indoor AC Metal-clad Withdrawable Switchgear

Item

Value

Unit

Rated Voltage

12

kV

Rated Frequency

50

Hz

Auxiliary Control Loop 1MIN Power Frequency Withstand Voltage

2000

V

Rated Current of Main Bus

630、1250

A

Rated Current of the Branch Bus

630、1250

A

Rated Short-circuit Breaking Current

31.5

kA

Rated Short-time Withstand Current

31.5

kA/4S

Rated Peak Withstand Current

80

kA

Rated Short-circuit Closing Current

80

kA

Enclosure Protection Class

4X; 2X When the Compartment and Circuit Breaker Room are Openning.

IP

Rated Voltage of Auxiliary Control Loop

DC:110,220; AC:220

V

Internal Arc Classification (IAC) Level

AFLR