DATASHEET
Load reactors RWK5420
Output dv/dt reactor 6% for motor drives
2021
08 Nov 2021
Reactors
RWK5420: Output dv/dt reactor 6% for motor drives
  • Reduction of drive output voltage dv/dt
  • Reduction of motor temperature
  • Increase of motor service life
  • Compact and economic open frame design
  • Standard catalog reactors up to 1000 A
  • UL rated materials used
Technical specifications

Nominal operating voltage

3x480 VAC

Rated operating voltage

3x530 VAC

Schaltfrequenz fPWM

0 to 16kHz

Impedance (uk)

6% @ 400 V, 50 Hz and rated current

Residual ripple voltage

<5%

Motor cable length

Max. 100m depending of switching frequency (see user manual)

Overvoltage category

III acc. IEC 60664-1

Pollution degree

3

High potential test voltage

P –> E 2480 VAC, 1 s

Protection category

IP00

Overload capability

1.5× rated current for 1 minute, once per hour

Ambient temperature range

-40°C to +45°C fully operation
+45°C to +100°C derated operation*
-40°C to +100°C transport and storage

Design corresponding to

Chokes: EN 61558-2-20 or EN 60076-6

Climatic class

40/070/21

MTBF @ 40°C/400 V (Mil-HB-217F)

>500,000 hours

Flammability corresponding to

UL-94V-0

Rated currents


2.3 to 1000 A @50°C

Approvals & Compliances

For use on PWM side of AC or DC drives (power conversion equipment) only

Features and benefits

  • Converts the rectangular PWM output voltage of motor drives into a smooth sine wave with low residual ripple
  • Elimination of premature motor damage caused by high dv/dt, overvoltages, cable ringing, motor overheating, and eddy current losses
  • Improves bearing life time because of bearing currents caused by circulating currents
  • Complies with IEC 60034-17* requirements for general purpose motors
  • Optional with IP20 protective cover

Typical applications

  • HVAC applications
  • Pumps
  • Conveyors
  • Compressors
  • Elevators
  • Cranes
  • Medium voltage applications, deployed in front of the step-up transformer
  • Retrofit installations with motor drives
  • Motor drive with long motor cable
  • Motor drive with multiple motors in parallel

Typical electrical schematic

Filter selection table RWK 5420

Filter Rated current @ 45°C/ 50Hz Typical motor drive power rating @ 400V* Typical motor drive power rating @ 480V** Nominal inductance Typical power loss*** Input/Output terminals Weight
  [A] [kW] [kW] [mH] [W]  [kg]
RWK5420-2.3-88-E0XXT 2.3 0.75 0.9 19.2 41 88 1.05
RWK5420-3.1-88-E0XXT 3.1 1.1 1.3 14.2 45 88 1.40
RWK5420-5.9-88-E0XXT 5.9 2.2 2.6 7.48 76 88 2.0
RWK5420-10-88-E0XXT 10.2 4.0 4.8 4.32 91 88 4.8
RWK5420-13-89-E0XXT 13.2 5.5 6.6 3.34 123 89 5.1
RWK5420-18-89-E0XXT 18 7.5 9.0 2.45 150 89 6.2
RWK5420-26-92-E0XXT 26 11 13 1.7 127 92 8.9
RWK5420-32-92-E0XXT 32 15 18 1.38 196 92 11.2
RWK5420-38-92-E0XXT 38 18.5 22 1.16 229 92 11.4
RWK5420-45-92-E0XXT 45 22 26 0.98 272 92 12.8
RWK5420-60-92-E0XXT 60 30 36 0.735 283 92 17.5
RWK5420-75-99-E0XXT 75 37 44 0.588 154 99 20.3
RWK5420-90-99-E0XXT 90 45 54 0.49 239 99 23.6
RWK5420-110-99-E0XXT 110 55 66 0.401 283 99 27.1
RWK5420-145-99-E0XXT 145 75 90 0.304 472 99 51
RWK5420-180-99-E0XXT 180 90 108 0.245 658 99 52
RWK5420-200-99-E0XXT 200 110 132 0.221 707 99 54
RWK5420-250-99-E0XXT 250 132 158 0.176 882 99 69
RWK5420-300-99-E0XXT 302 160 192 0.146 936 99 90
RWK5420-400-99-E0XXT 400 200 240 0.11 1023 99 118
RWK5420-480-99-E0XXT 477 250 300 0.092 1318 99 136
RWK5420-630-99-E0XXT 630 315 378 0.07 1459 99 164
RWK5420-710-99-E0XXT 710 355 426 0.062 1922 99 200
RWK5420-800-99-E0XXT 800 400 480 0.055 2062 99 239
RWK5420-1000-99-E0XXT 1000 500 600 0.044 2315 99 339

**** General purpose four-pole (1500 r/min) AC induction motor rated 400 V/50 Hz.
**** General purpose four-pole (1500 r/min) AC induction motor rated 480 V/50 Hz.
**** See user and installation manual for calculation of the filter power loss at other operation point. Exact value of the complete system depends on the motor cable length and type, switching frequency and further stray parameters of the system.

Mechanical data RWK 5420

2.3 to 3.1 A types

5.9 to 18 A types

26 to 60 A types

75 to 110 A types

145 to 1000 A types

Dimensions RWK 5420

Filter A B±5 C±3 D E F G H J K L±5 M±5 N±5 O P Q R
2.3 120 63 118 107 38 6.5x5.5 -88 - 1.5 M3 - - 32 - - - -
3.1 120 72 118 107 47.2 6.5x5.5 -88 - 1.5 M3 - - 32 - - - -
5.9 150 69 137 135 45.3 8x5.5 -88 - 2 M3 - - 42 - - - -
10.2 195 95 159 170 71.5 12x9 -88 - 2.5 M4 - - 50 - - - -
13.2 195 95 160 170 71.5 12x9 -89 - 2.5 M4 - - 50 - - - -
18 220 84.5 183 200 57.5 12x9 -89 - 2.5 M6 - - 60 - - - -
26 220 139 157 200 77.5 12x9 ø6.5 - 2.5 M6 - - 60 - - - -
32 240 142 178 220 84.5 12x9 ø6.4 - 2.5 M6 - - 68 - - - -
38 240 142 178 220 84.5 12x9 ø6.4 - 2.5 M6 - - 68 - - - -
45 240 149 197 215 95 15x11 ø6.4 - 3 M6 - - 80 - - - -
60 240 169 197 215 115 15x11 ø6.4 - 3 M6 - - 80 - - - -
75 240 178 198 215 129 15x11 - - 3 M6 170 37 80 20 10 3 ø9
90 265 177 218 240 126 15x11 - - 3 M8 185 42 88 20 10 3 ø9
110 290 183 234 260 138 15x11 - - 3 M8 201 43 96 20 10 3 ø9
145 420 223 338 370 134 24x11 - - 5 M8 263 79 140 25 12.5 4 ø11
180 420 226 338 370 134 24x11 - - 5 M8 263 79 140 25 12.5 4 ø11
200 420 239 338 370 134 24x11 - - 5 M8 263 79 140 25 12.5 4 ø11
250 420 263 403 370 134 24x11 - - 5 M8 321 87 140 40 20 4 ø13.5
302 420 303 389 370 174 24x11 - - 5 M8 314 80 140 40 20 4 ø13.5
400 420 308 498 370 174 24x11 - - 5 M8 418 84 140 40 20 4 ø13.5
477 420 313 594 370 174 24x11 - - 5 M8 517 82 140 50 25 5 ø13.5
630 420 313 722 +/-10 370 174 24x11 - - 5 M8 631 96 140 50 25 5 ø13.5
710 420 353 693 +/-10 370 214 24x11 - - 5 M8 617 82 140 50 25 5 ø13.5
800 420 355 821 +/-10 370 214 24x11 - - 5 M8 734 96 140 50 25 8 ø13.5
1000 420 384 1013 +/-10 370 244 24x11 - - 5 M8 930 92 140 50 25 8 ø13.5

All dimensions in mm; 1 inch = 25.4 mm
Tolerances according: ISO 2768-m / EN 22768-m

Power terminals

Terminal designation Recommended connector type Screw thread Flex wire AWG Flex wire Screw torque value Max width cable lug*
        [mm2]   [Nm] [mm]
88 Fork cable shoe M3.5 22-16 0.35-1.5 0.78 6.4
89 Fork cable shoe M4 16-14 1.5-2.5 1.76 8
92 Ring cable shoe M6 - - - -
99 Ring cable shoe M8/M10/M12 - - - -

* To fulfill creepage/clearance acc. UL 61800-5-1 without additional protection (insulation). Creepage/clearance can vary depending on applicable standard and must be reviewed by customer. Creepage/clearance may be reduced when additional protection (insulation) is provided.

Auxiliary terminals

Filter size Recommended connector type Screw thread Flex wire AWG Flex wire Screw torque value Max width cable lug
        [mm2]   [Nm] [mm]
2.3A & 3.1A Fork cable shoe M3.5 22-16 0.35-1.5 0.78 6.4
5.9 to 18A Fork cable shoe M4 16-14 1.5-2.5 1.76 8.0
26A to 1000A No connector - 20-14 0.5-2.5 0.4 -

Earth terminals

Filter size Screw thread Screw torque value
    [Nm]
2.3 to 5.9A M3 0.6
10 to 13A M4 1.7
18 to 75A M6 4
90 to 1000A M8 9

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