Product Overview
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Three-phase dv/dt reactor for motor protection
- 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 1100 A
- UL rated materials used
Features and Benefits
Efficient reduction of high output voltage dv/dt from IGBT motor drives
Typical Applications
Servo drives
Technical Specifications
Nominal operating voltage
3x500 VAC
Rated operating voltage
3x530 VAC
Rated currents
4 to 1100 A @ 40°C
Impedance (uk)
0.8% @ 400 VAC, 50 Hz and rated current
Typical dv/dt reduction
≥factor 5
Motor frequency
0 to 60 Hz
Switching frequency fPWM
2 to 16 kHz
Overload capability
2 x rated current at switch on for 30 seconds
1.5 x rated current for 1 minute, once per hour
High potential test voltage
P –> E 3000 VAC for 3 sec
P –> P 3000 VAC for 3 sec
Insulation class
T40/N (200°C) for ≤182 A types
T40/F (155°C) for ≥230 A types
Overvoltage category
OV III (IEC 60664-1)
Protection category
IP 00 (KL types according to VBG 4)
Motor cable length
30 m max. @ 16 kHz (see derating curve page 2)
Ambient temperature range
-25°C to +100°C (25/100/21) operation and storage
Design corresponding to
EN 61558-2-20 (VDE 0570-2-20), UL 508C, CSA C22.2 NO. 14
Flammability corresponding to
UL 94 V-2
MTBF @ 45°C/480 V (Mil-HB-217F)
>500'000 hours
Typical electrical schematic
Approvals & Compliances
UL 508C up to 182 A. For use with AC or DC drives (power conversion equipment) only