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KDR Line/Load Reactors
0.25 - 250HP, 208/240V, 480V, 575/600V, CHASSIS MOUNT & NEMA 1
0.25 - 250
208/240V, 480V, 575/600V, 50/60Hz
Chassis Mount (Open) with NEMA 1 kits available
Low "Z" (3%) or High "Z" (5%)
KDR line reactors are electrical components that help to protect 6-pulse rectifiers and power conversion devices such as variable frequency drives (VFDs).
When used in conjunction with a VFD, a KDR line reactor can help reduce harmonics and protect the drive from harmful voltage spikes. KDR line reactors are recommended on the input of each VFD in multiple drive applications.
Impedance Protection: Low "Z" and High "Z"
System Voltage: 208/240V, 480V, 575/600V
Ambient Temperature: 50° C (122° F) - Open; 40° C (104° F) - Enclosed
Altitude (Maximum): 2,000 meters (6,000 feet)
Derating necessary above 2,000 meters
Fundamental Frequency: 50/60 Hz
Short Term Overload Rating: Tolerate 200% rated I for a minimum of 3 minutes
Agency Approvals: cUL, UL; UL Recognized, CE Marked
Minimum 95% L at 110% Load
Minimum 80% L at 150% Load
Input and Output: Available for either the line or load side of a VFD
Enclosures: Open Chassis, NEMA 1
Helps to meet IEEE 519-2014 requirements
Available in Ultra Low, Low and High Impedance
Strong durable design specifically for VFD applications
Made in the USA
KDR AT THE OUTPUT:
The addition of a KDR unit to the output of a drive will dampen overshoot peak voltage, reduce motor heating
and audible noise, helping to extend the life of the motor. The units will also help prevent inverter instantaneous
overcurrent trips because they provide needed inductance when the load on an inverter has an abnormally high
USE KDR LOW "Z" UNITS FOR:
Any applications where traditionally either a 1.5% or 3% reactor would be applied.
Reduction of nuisance tripping caused by:
Transient voltages caused by capacitor switching
DC bus overvoltage tripping
Inverter overcurrent and overvoltage
Lower injected percentage of harmonic current
Improving true power factor
Reducing cross-talk between drives
USE KDR HIGH "Z" UNITS FOR:
Any rugged application where traditionally a 5% reactor would be applied.
KDR High “Z” offers the same superior benefits as
Low “Z” plus additional benefits which include:
Helping prevent drive component damage
Providing maximum harmonic mitigation without
Further improving true power factor
Adding impedance to drives with or without DC link
chokes/reactors when more impedance is desired
due to a relatively stiff source