Technical specifications
11.2 Technical specifications 3KC4 and 3KC8 from 1250 A to 3200 A
186 Manual, 08/2017, L1V30368969104A-02
Technical specifications 3KC4 and 3KC8 from 1250 A to 3200 A
Uninterrupted current A 1250 1600 2000 2500 3200
Operating voltage at 50/60 Hz AC
in compliance with IEC 60947-6-1
V 415
Operating voltage at 50/60 Hz AC
in compliance with IEC 60947-3
V 690
Insulation voltage V 1000 AC; 1000 DC
Impulse withstand voltage (U
imp
) of
the main circuit
kV 12 12 12 12 12
Impulse withstand voltage (U
imp
) of
the control circuit
kV 4 4 4 4 4
Overvoltage category with pollution
degree 3
RTSE: IV; ATSE: III
Operational current in compliance with IEC 60947-6-1
• AC-31 B 415 V
A 1250 1600 2000 2500 3200
• AC-32 B 415 V
A 1250 1600 2000 2000 2000
• AC-33 B 415 V
A 1000 1000 1250 1250 1250
Operational current in compliance with IEC 60947-3
• AC-21 A/B 415 V
A 1250 1600 -/2000 -/2500 -/3200
• AC-21 A/B 690 V
A 1250 1600 -/2000 -/2000 -/2000
• AC-22 A/B 415 V
A 1250 1600 -/2000 -/2500 -/3200
• AC-22 A/B 690 V
A 1000 1000 - - -
• AC-23 A/B 415 V
A 1250 1250 -/1600 -/1600 -/1600
• AC-23 A/B 690 V
A 800 800 - - -
• DC-21/-22 A 220 V
A 1250 1250 - - -
• DC-21/-22/-23 A 440 V;
DC-23 220 V
A 1250 1250
Operational power in compliance with IEC 60947-3
• AC-23 A/B 415 V
kW 800 900 - - -
• AC-23 A/B 690 V
kW 800 800 - - -