Three-phase du/dt chokes, 3RTU type
Purpose and design
Three-phase du/dt chokes are used in drive systems powered and regulated by inverters. The du/dt chokes installed at the inverter output limit the steepness of the rise of the du/dt pulses of the motor supply voltage. This protects the insulation of the power cable and the motor. Du/Dt chokes can be made in IP23 rated enclosures or covers. In case of a need for installation of chokes in enclosures with a higher protection class should be consulted with the manufacturer.
Note:
Upon agreement, we can manufacture a non- standard device with the required technical parameters.
The manufacturer reserves the right to make changes to the parameters due to technical product developments.
Technical Standards EN/IEC 60076-6; EN/IEC 61558-2-20
Mains voltage 400 V (max. +10%)
Frequency 50 Hz
Voltage drop at choke > 4 % kHz
Overload capacity 110% 60min / 150% 60s Voltage test 3kV / 50Hz / 60s
Max. ambient temperature from -250C to +400C
Insulation class F (1550C)
Environment/climate class C1/E0 – land based, C2/E1 – mining and offshore
Protection classIP00 or IP23
Cooling AN (natural air)
| Typ | Pn | In | Ln | A | B | C | D | E | F | Masa | Wykonanie |
| [kW] | [A] | [mH] | [mm] | [mm] | [mm] | [mm] | [mm] | [mm] | [kg] | ||
| 3RTU-8/0,82 | 4 | 8 | 0,82 | 125 | 61 | 110 | 100 | 45 | 5*8 | 1,6 | A |
| 3RTU-11/0,6 | 5,5 | 11 | 0,6 | 125 | 71 | 110 | 100 | 55 | 5*8 | 2,3 | A |
| 3RTU-15/0,44 | 7,5 | 15 | 0,44 | 125 | 71 | 110 | 100 | 55 | 5*8 | 2,4 | A |
| 3RTU-21/0,31 | 11 | 21 | 0,31 | 155 | 77 | 130 | 130 | 57 | 8*12 | 3,3 | A |
| 3RTU-28/0,23 | 15 | 28 | 0,23 | 155 | 77 | 130 | 130 | 57 | 8*12 | 3,7 | A |
| 3RTU-35/0,19 | 18,5 | 35 | 0,19 | 155 | 92 | 130 | 130 | 72 | 8*12 | 4,8 | A |
| 3RTU-42/0,16 | 22 | 42 | 0,16 | 155 | 92 | 130 | 130 | 72 | 8*12 | 5,0 | B |
| 3RTU-56/0,11 | 30 | 56 | 0,11 | 190 | 82 | 155 | 145 | 58 | 8*12 | 5,8 | B |
| 3RTU-70/0,095 | 37 | 70 | 0,095 | 190 | 92 | 155 | 145 | 68 | 8*12 | 7,2 | B |
| 3RTU-85/0,078 | 45 | 85 | 0,078 | 190 | 92 | 155 | 145 | 68 | 8*12 | 7,4 | B |
| 3RTU-100/0,066 | 55 | 100 | 0,066 | 190 | 102 | 155 | 145 | 78 | 8*12 | 8,6 | B |
| 3RTU-110/0,06 | 60 | 110 | 0,06 | 190 | 102 | 155 | 145 | 78 | 8*12 | 9,0 | B |
| 3RTU-140/0,044 | 75 | 140 | 0,044 | 210 | 105 | 180 | 165 | 85 | 8*12 | 10,7 | B |
| 3RTU-170/0,039 | 90 | 170 | 0,039 | 210 | 115 | 180 | 165 | 95 | 8*12 | 12,8 | B |
| 3RTU-200/0,033 | 110 | 200 | 0,033 | 240 | 131 | 205 | 190 | 105 | 11*15 | 15,7 | B |
| 3RTU-240/0,028 | 132 | 240 | 0,028 | 240 | 146 | 205 | 190 | 121 | 11*15 | 19,8 | C |
| 3RTU-290/0,023 | 160 | 290 | 0,023 | 240 | 155 | 205 | 190 | 129 | 11*15 | 23,6 | C |
| 3RTU-360/0,019 | 200 | 360 | 0,019 | 300 | 152 | 260 | 240 | 120 | 11*15 | 27,9 | C |
| 3RTU-450/0,015 | 250 | 450 | 0,015 | 300 | 165 | 260 | 240 | 133 | 11*15 | 34,5 | C |
| 3RTU-570/0,012 | 315 | 570 | 0,012 | 300 | 192 | 260 | 240 | 160 | 11*15 | 46,3 | C |
| 3RTU-640/0,011 | 355 | 640 | 0,011 | 300 | 203 | 260 | 240 | 171 | 11*15 | 50,8 | C |
| 3RTU-720/0,01 | 400 | 720 | 0,01 | 360 | 163 | 310 | 300 | 125 | 11*15 | 46,8 | C |
| 3RTU-810/0,009 | 450 | 810 | 0,009 | 360 | 178 | 310 | 300 | 140 | 11*15 | 56,3 | C |
| 3RTU-900/0,008 | 500 | 900 | 0,008 | 360 | 178 | 310 | 300 | 140 | 11*15 | 59,3 | C |
| 3RTU-1000/0,007 | 560 | 1000 | 0,007 | 360 | 193 | 310 | 300 | 155 | 11*15 | 66,3 | C |
| 3RTU-1150/0,006 | 630 | 1150 | 0,006 | 360 | 193 | 310 | 300 | 155 | 11*15 | 69,3 | C |