Item

Unit

Data

Rated voltage

KV

3.6 7.2 12

Rated insulation level

1 min power frequency withstand voltage

KV

42

Impulse withstand voltage

75

Rated frequency

Hz

50

Rated current

A

630,1250,1600,2000,2500,3150

4s withstand current (r.m.s)

KA

20,25,31.5,40,50

Rated withstand current (peak)

KA

50,63,80,100,130

Protection degree

IP4X (Enclosure) IP2X (Internal)