TCI KDRC31PE3R - KDR, 575V, 55A, 50HP
TCI

KDRC31PE3R


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Overview

The TCI KDRC31PE3R is a 3-phase output line inductor designed for AC-PWM variable frequency drive applications. Rated for 575VAC and 55A continuous current, this inductor is optimized for 50HP motors operating under NEC standards. It features a NEMA Type 3R enclosure, providing environmental protection against rain, sleet, and external ice formation, making it suitable for outdoor installations. The unit is UL listed and RoHS compliant, ensuring compliance with international safety and environmental regulations. Key specifications include a maximum continuous current rating of 55A, voltage rating of 575VAC, and a 3-phase configuration. The inductor helps dampen voltage overshoot from PWM drives, reducing motor heating and audible noise—critical for extending motor lifespan in industrial applications. It is specifically designed for motor lead lengths under 100 feet, where voltage spikes are most problematic. The compact dimensions (5.75" x 7.20" x 5.00") and 15 lb weight make it easy to integrate into existing control panels or enclosures. Manufactured by TCI in Germany, the KDRC31PE3R is a reliable solution for mitigating drive-induced stress on motors in demanding industrial environments.
  • 3-phase output line inductor for AC-PWM variable frequency drives
  • Rated for 575VAC and 55A continuous current, suitable for 50HP motors
  • NEMA Type 3R enclosure for outdoor environmental protection (rain, sleet, ice)
  • Reduces voltage overshoot, motor heating, and audible noise
  • UL listed and RoHS compliant for safety and environmental standards

Specifications

Current Rating
55 A
NEMA Rating
Type 3R
Poles
3-Phase
Series
KDR
Voltage Rating
575 VAC
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Frequently Asked Questions about TCI

What environmental ratings do TCI products have?

TCI products feature robust environmental ratings across multiple standards, including UL 508A Type 1, 2, 3, 4, 4X, 12, and 13; CSA Type 1, 2, 3, 4, 4X, 12, and 13; and NEMA Type 1, 2, 3, 4, 4X, 12, and 13. Additionally, they meet IEC 60529 IP66 standards, providing exceptional protection against dust, water, and corrosive environments with operating temperatures ranging from -40°C to 130°C.

What industries and applications are TCI products used for?

TCI products are engineered for critical applications across multiple industrial sectors, including HVAC, metals manufacturing, elevators and escalators, marine and shipping, food processing, pulp and paper, and underground construction. Their TorqueDrive Series offers specialized solutions for diverse load types such as fans, pumps, compressors, conveyors, hoists, winders, and synchronized positioning applications, with specific product lines designed for high-performance environments requiring precise torque control, energy efficiency, and robust environmental resistance.

What are the main product lines offered by TCI?

TCI offers four primary product lines: Harmonic Solutions, Motor Protection Solutions, Power Factor Correction Solutions, and High Frequency Noise Solutions. These comprehensive product lines include advanced technologies like HarmonicGuard® Active and Passive Filters, MotorGuard™ Sine Wave Output Filters, PF Guard Capacitor Banks, and KRF 3-Phase EMC Power Line Filters designed for industrial automation and electrical system optimization.

What are the key features of TCI products?

TCI products feature advanced harmonic mitigation solutions including HarmonicGuard® Active and Passive Filters, specialized line and load reactors, and power factor correction technologies. Key capabilities include integrated EMC design, high-endurance capacitors capable of handling 190% rated current, and solutions specifically engineered for harmonically-rich industrial environments like manufacturing facilities, water treatment plants, and facilities with variable frequency drives.

What certifications and standards do TCI products comply with?

TCI products are certified to meet critical North American standards including UL (Underwriters Laboratories) and CSA (Canadian Standards Association) certifications. Our products comply with rigorous safety and performance requirements for industrial automation equipment, with UL Listed Product and Recognized Component classifications ensuring high-quality manufacturing and reliability across multiple industrial applications.

What is TCI's warranty policy?

TCI offers a Limited Warranty policy that requires customers to obtain a Return Material Authorization (RMA) number before returning any products. Returns must be submitted within 30 days of the initial return request to TCI's Germantown, Wisconsin facility. All returned goods are subject to inspection, and restocking charges may apply. Customers should contact TCI's Customer Service for specific warranty details and return instructions.

What communication protocols do TCI products support?

TCI products support a comprehensive range of industrial communication protocols, including PROFIBUS DP V1, PROFINET with dual port, EtherNet/IP with dual port, CANopen, and Modbus RTU. These protocols enable flexible network integration, high-performance communication, and seamless connectivity with major PLC systems across diverse industrial automation environments.

What accessories are available for TCI products?

TCI offers a comprehensive range of communication and bus accessories for industrial automation systems. Key accessories include communication terminal boards (CTB810, CTB811), horizontal and vertical bus extenders (cHBX01L/R, HBX01L/R, VBX01T/B), and bus terminators (TER800, TER810). These accessories support connection, power distribution, and signal integrity for HN800 and CW800 device networks, enabling flexible and robust system configurations.

How are TCI products typically installed?

TCI products are typically installed by trained, manufacturer-certified technicians following a comprehensive commissioning process. Installation involves critical steps including work environment inspection, electrical installation checks, internal and external equipment verification, system power-up, and comprehensive operational testing. Authorized installation personnel ensure compliance with industry standards, complete factory acceptance tests, and provide a conformity certificate to guarantee safe and reliable system integration.