Technical Specifications; Technical Specifications 3Kc4 And 3Kc8 From 250 A To 1000 A - Siemens SENTRON Manual

Technical specifications

The technical specifications of the 3KC4 and 3KC8 transfer switching equipment in
accordance with IEC 60947-3 and IEC 60947-6-1 are described in this chapter:
11.1

Technical specifications 3KC4 and 3KC8 from 250 A to 1000 A

Uninterrupted current
Operating voltage at 50/60 Hz AC
in compliance with IEC 60947-6-1
Operating voltage at 50/60 Hz AC
in compliance with IEC 60947-3
Insulation voltage
Impulse withstand voltage (U
the main circuit
Impulse withstand voltage (U
the control circuit
Overvoltage category with pollution
degree 3
Operational current in compliance with IEC 60947-6-1
AC-31 B 415 V
•
AC-32 B 415 V
•
AC-33 B 415 V
•
Operational current in compliance with IEC 60947-3
AC-21 A/B 415 V
•
AC-21 A/B 690 V
•
AC-22 A/B 415 V
•
AC-22 A/B 690 V
•
AC-23 A/B 415 V
•
AC-23 A/B 690 V
•
DC-21/-22 A 220 V
•
DC-21/-22/-23 A 440 V;
•
DC-23 220 V
Manual, 08/2017, L1V30368969104A-02
3KC4.38
3KC8.38
A 250
V
V
V
) of kV 12
imp
) of kV 4
imp
A 250
A 200
A 200
A 250
A 200
A 250
A 160
A 200
A 125
A 250
A 200
3KC4.42 3KC4.46
3KC8.42 3KC8.46
400 630
415
690
1000 AC; 1000 DC
12 12
4 4
RTSE: IV; ATSE: III
400 630
400 500
200 400
400 630
200 500
400 630
160 400
400 500/630
125 400
250 630
200 630
11
3KC4.48 3KC4.50
3KC8.48 3KC8.50
800 1000
12 12
4 4
800 1000
800 1000
800 800
800 1000
800 1000
800 1000
630 800
800 1000
630 630
800 1000
800 1000
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