Three-Phase Motor Chokes RDMDr 24 – 1120

Three-phase motor chokesRDMDr 24 – 1120Three-phase motor chokes for operation with variable frequency drivesRated voltage: 3AC 400V to 3AC 690V (higher voltages available upon request)Rated current: up to 1200 A (higher currents available upon request)Frequency: 50 Hz to 60 Hz (higher frequencies available upon request)Pulse width modulation (PWM) frequencies: 1.5 kHz to 8.0 kHzThe RDMDr series motor chokes comply with national, international, and anticipated future regulations for worldwide use. General:As standard, the motor chokes are supplied with a rated voltage of up to 3AC 690V and a rated current of up to 1200A. In addition, a unique core geometry significantly reduces noise emissions.The use of RDMDr is recommended for motor cable runs up to 150 m in length.Technical Specifications:Rated voltages: 3AC 400V to 3AC 690V (higher voltages available upon request)Rated current: up to 1200 A (higher currents available upon request)Frequency: 50 Hz to 60 Hz (higher frequencies available upon request)Pulse width modulation (PWM) frequencies: 1.5 kHz to 8.0 kHzAmbient temperature: ta = 40°C / F, S1/100% duty cycleCooling Types: ANProtection class: IP00 (higher protection classes available upon request)Design: compact, open design for installation in dry roomsAdvantages: Low-noise filters thanks to new core geometry (confirmed by noise level measurements at Aalen University) Reduction of overvoltages on the motor insulation (longer motor operating times) Lower noise levels at the motor

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