36 Technical Data KH, KHR Switches 1Valid for lines with grounded common neutral termination, overvoltage category III, pollution degree 3. Values for other supply systems on request. 2Suitable for no load switching applications (AC-20A) above 690 V. 3C: on request. 4Storage temperature: -40 °C to 85 °C (in case of temperature below -5 °C no shock load permissible). Selection Data Rated Insulation Voltage Ui IEC/EN/VDE 1 UL/Canada Rated Impulse Withstand Voltage Uimp 1 Rated Thermal Current IEC/EN/VDE Iu open = Ith Ithe enclosed UL/Canada Rated Operational Current Ie AC-21A Switching of resis- IEC/EN/VDE tive loads, including moderate overloads AC-22A Switching of combi- IEC/EN/VDE ned resistive or low inductive loads, inclu- ding moderate overloads Ampere-Rating UL/Canada Resistive or low inductive loads Rated Utilization Category IEC/EN/VDE AC-3 Direct-on-line 3 phase 220 V-240 V starting 3 pole 380 V-440 V 500 V 660 V-690 V AC-23A Frequent switching 3 phase 220 V-240 V of motors or other 3 pole 380 V-440 V high inductive loads 500 V 660 V-690 V DOL-Rating UL/Canada 110 V-120 V Standard motor load 3 phase 220 V-240 V (similar AC-3) 3 pole 440 V-480 V 550 V-600 V Power loss per contact at Iu Resistance to vibration3 Resistance to shock3 Short Circuit Protection Max. fuse size (gG-characteristic) Rated short-time withstand current (1s-current) Max. Permissible Wire Gage - Use copper wire only KH For box terminal Single-core or stranded wire Flexible wire sleeving in accordance with DIN46228 Flexible wire without sleeve KHR Connection with insulated ring and fork type terminals Internal diameter ≥ External diameter ≤ Ambient Temperature4 Ambient Temperature4 open at 100 % I u/Ith enclosed at 100 % Ithe V V kV A A A A A A kW kW kW kW kW kW kW kW HP HP HP HP W A A mm2 AWG mm2 mm2 AWG mm mm KH16 KH20 KHR20 KHR25 KH32 KH63 KH80 KH16B KH20B KHR20B KHR25B KHR32 KH40 KHR63 KHR80 8002 8002 8002 8002 8002 8002 10002 10002 600 600 600 600 600 600 600 600 6 6 6 6 6 6 8 8 16 20 20 20 32 40 63 80 16 20 20 20 32 40 63 80 16 20 20 20 30 40 60 80 16 20 20 20 32 40 63 80 16 20 20 20 32 40 63 80 16 20 20 20 30 40 60 80 3 3,5 3,5 4 5,5 7,5 11 15 5,5 6,5 6,5 7,5 11 15 22 30 5,5 6,5 6,5 7,5 11 15 30 37 5,5 6,5 6,5 7,5 11 15 18,5 22 4,5 5,5 5,5 5,5 9 11 18,5 23 7,5 10 10 10 16 20 30 40 10 12 12 13 20 25 40 55 13 15 15 17 22 25 30 37 1 1 1 1,5 2 3 7,5 10 2 2 2 3 5 7,5 20 25 5 5 5 7,5 10 15 30 40 5 5 5 7,5 10 15 40 50 0,2 0,3 0,3 0,3 0,4 0,6 1,5 2,7 C C C C C C C C C C C C C C C C 25 35 35 35 35 50 80 100 400 450 450 500 850 950 1200 1600 6 6 - - 10 10 35 35 10 10 - - 8 8 2 2 4 4 - - 6 6 25 25 4 4 - - 6 6 25 25 12 12 - - 10 10 4 4 - - 3,2 3,2 3,7 - 5,2 5,2 - - 7,4 7,4 8,8 - 12,7 12,7 -5 °C (-25 °C auf Anfrage) 50 °C über 24 Stunden mit Spitzen bis 55 °C 35 °C über 24 Stunden mit Spitzen bis 40 °C < back to table of contents >
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