KRAUS & NAIMER C32 - Electrical Data 24.11.2003

Switch features:
- S1 (64x64mm) Front element size (can be changed by mountings and optional extras)
- Terminal screws accessible laterally (resp. from above and below for -V mountings)
- Designed for vertical wiring (resp. horizontal for -V mountings: e.g. VE-V, FS1-V)
 
Approvals:
 
Approved Confirms to requirements No listing required
CSA, CUL, CULUS, GOST, UL BS EN, CH, D, FI, IEC, N, ÖVE, VDE S

BS EN...BS EN 60947 - British Standards Institution, CCC...CCC - China Compulsory Certification, CH...Schweizerischer Elektrotechnischer Verein, CSA...Canadian Standards Association, CUL...Canadian National Standards - Listed, CULUS...Canadian National and United States Standards - Listed, CUR...Canadian National Standards - Recognized, CURUS...Canadian National and United States Standards - Recognized, D...Danmarks Elektriske Materiellkontrol, FI...Sähkötarkastuskeskus, GOST...GOST - gosudarstvennyj standard, IEC...IEC 60947 - International Electrical Commission (IEC) Recommendation, N...Norges Elektriske Materiellkontroll, ÖVE...Österreichischer Verband für Elektrotechnik, S...Svenska Elektriska Materielkontrollanstalten, UL...United States Standards - Listed, UR...United States Standards - Recognized, VDE...VDE 0660 - Verband Deutscher Elektrotechniker
 
AC-Values:

IEC 60947-3, EN 60947-3, VDE 0660 part 107:
Rated Operational Voltage Ue690V 1)
Rated Insulation Voltage Ui690V 1)
Rated Thermal Current Iu/Ith50A 2)
Breaking capacity
220V-240V:   
380A 2)
380V-440V:   
360A 2)
660V-690V:   
270A 2)
Disconnection property up to690V 1)
Rated Operational Current Ie
AC-15 Switching of control devices, contactors, valves etc.
220V-240V:   
16A 2)
380V-440V:   
7A 2)
AC-20A No-load operation50A 2)
AC-21A Switching of resistive loads, including moderate overloads
For switching of power >1kW 40A 2)
AC-22A Switching of combined resistive or low inductive loads including moderate overloads
220V-500V:   
40A 2)
660V-690V:   
40A 2)
Rated Utilization Category
AC-2 Slip ring motor starting, reversing and plugging, star-delta starting 3 phase, 3 pole
220V-240V:   
10kW 2)
380V-440V:   
18.5kW 2)
500V-500V:   
22kW 2)
660V-690V:   
22kW 2)
AC-3 Direct-on-line starting, star-delta starting
3 phase, 3 pole
220V-240V:   
7.5kW 2)
380V-440V:   
15kW 2)
500V-500V:   
15kW 2)
660V-690V:   
15kW 2)
1 phase, 2 pole
110V-120V:   
2.5kW 2)
220V-240V:   
5.5kW 2)
380V-440V:   
7.5kW 2)
AC-4 Direct-on-line starting, reversing, plugging and inching
3 phase, 3 pole
220V-240V:   
3.7kW 2)
380V-440V:   
6kW 2)
500V-500V:   
6kW 2)
660V-690V:   
6kW 2)
1 phase, 2 pole
110V-120V:   
1.1kW 2)
220V-240V:   
2.2kW 2)
380V-440V:   
3.7kW 2)
AC-23A Frequent switching of motors or other high inductive loads
3 phase, 3 pole
220V-240V:   
11kW 2)
380V-440V:   
22kW 2)
500V-500V:   
30kW 2)
660V-690V:   
22kW 2)
1 phase, 2 pole
110V-120V:   
2.5kW 2)
220V-240V:   
5.5kW 2)
380V-440V:   
11kW 2)
1)...IEC 60947-3, EN 60947-3, VDE 0660 part 107 - Valid for lines with grounded common neutral termination, overvoltage category III, Other values on request.
2)...IEC 60947-3, EN 60947-3, VDE 0660 part 107

UL/Canada:
Rated Voltage600V 1)
Rated Insulation Voltage Ui600V 1)
Rated Thermal Current50A 1)
Ampere Rating - Resistive or low inductive loads
For switching of power >1kW 50A 1)
Ratings
Standard motor load, DOL Rating (similar AC-3)
3 phase, 3 pole
110V-120V:   
7.5HP 2)
220V-240V:   
15HP 2)
440V-480V:   
25HP 2)
550V-600V:   
30HP 2)
1 phase, 2 pole
110V-120V:   
3HP 2)
220V-240V:   
7.5HP 2)
277V-277V:   
7.5HP 2)
440V-480V:   
15HP 2)
550V-600V:   
20HP 2)
Heavy motor Load-reversing (similar AC-4)
3 phase, 3 pole
110V-120V:   
3HP 2)
220V-240V:   
5HP 2)
440V-600V:   
15HP 2)
1 phase, 2 pole
110V-120V:   
1.5HP 2)
220V-240V:   
3HP 2)
277V-277V:   
3HP 2)
Pilot Duty, Heavy600VAC 1)
1)...UL/Canada - Refer to International Standards and Approvals
2)...UL/Canada

General:
Minimum Voltage20V
Rated Impulse Withstand Voltage Uimp6kV 1)
Short Circuit Protection
Max. fuse size (gL/gG-characteristic)63A
Rated short-time withstand current (1s-current)800A
Ambient Temperature of Stages (for switches with electro-mechanical accessories refer to optional extra)
open at 100% Iu/Ith 55°C during 24 hours with peaks up to 60°C
enclosed at 100% Ithe 35°C during 24 hours with peaks up to 40°C
Terminal lead material copper wires only
Max. Permissible Wire Gage
Single-core or stranded wire2x10mm2
2xAWG 8
Flexible wire2x6mm2
2xAWG 8
Flexible wire with sleeving in accordance with DIN 462282x6mm2
1)...IEC 60947-3, EN 60947-3, VDE 0660 part 107 - Valid for lines with grounded common neutral termination, overvoltage category III, Other values on request.