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Product Description

ItemUnitCircuit Breaker   UnitLoad Switch   UnitSwitch-fuse   Combinations Unit
1Rated VoltagekV121212
2Rated FrequencyHz505050
3Rated CurrentA630/1250630/1250Dependent on Fuse   Current Rating
4Rated Insulation LevelPower   Frequency Withstand Voltage(Phase-to-Phase/Phase-to-Ground)kV424242
5Power Frequency Withstand Voltage(Vacuum   Interrupter/ lsolation Gap)484848
6Power Frequency Withstand Voltage(Control and   Auxliary Circuits)222
7Lightning Impulse Withstand   Voltage(Phase-to-Phase/Phase-to-Ground)757575
8Lightning Impulse Withstand Valtage(Vacuum   lnterrupter / lsolation Gap)858585
9Rated Short-Time Withstand CurrentkA20(25)/4S20(25)/4S——
10Rated Peak Withstand CurrentkA50(63)50(63)——
11Rated Short-Circuit Making CurrentkA50(63)50(63)Limited by   High-Voltage Fuse
12Rated Short-Circuit Breaking CurentkA20(25)20(25)Limited by   High-Voltage Fuse
13Rated Transfer CurrentA————1700
14Rated Active Load Breaking CumentA——————
15Rated Closed-Loop Breaking CurrentA630630——
16Internal Arc Fault Test (AFLR Class)kA/S20(25)/0.5S20(25)/0.5S——
17Partial Discharge (at 1.2Ur)PC≤10≤10——
18Ingress Protection (IP) Rating (Cabinet)
IP4XIP4XIP4X
19Main Circuit ResistanceμΩ≤120≤120——
20Mechanical EnduranceCircuit Breaker /   Load SwitchTimes100001000010000
21Disconnector/Grounding Switch300030003000

71F-2

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