Line Reactor Installation
Review all Pre-Installation and Installation instructions at the beginning of this manual.
If you are assembling a CP unit in your own enclosure, you must provide an enclosure that is adequately
sized and ventilated sufficiently to prevent overheating. The maximum temperature of the air around the
HGP filter capacitors should not exceed 50°C (122°F).
KDR Line Reactor Installation Instruction
Recommendations and Considerations:
When installing the KDR Line Reactors on the INPUT side of the VFD, please use the following guidelines
when wiring the unit:
The KDR Line Reactor is a 3-phase device and should be wired in series and positioned on the input side of
the VFD.
All Terminal Block connectors will be marked. A1, B1, and C1 are the input terminals where the 3 phases of
incoming power are to be wired. The tap for the filter connection will be marked AT, BT, and CT. Output
terminals will be marked A2, B2, and C2. Do not swap input and output terminals. Units with copper bus or
ring lug terminals are not marked. Wiring from the output terminals should connect to the input of the VFD.
Refer to NEC wiring practices for appropriate wire sizes for your application.
TCI recommends that these reactors be wired and located as close to the front end of the VFD as possible to
have the greatest success in both protecting the VFD as well as mitigating line harmonics. We recommend
this be 10 feet of cable or less.
Reactors generate a lot of heat in normal operations, and their surfaces get very hot. In standard 40°C
ambient or less installations, a clearance of 3 inches on all sides of the reactors and its enclosure is
recommended for assisting in heat dissipation. This is a general guideline for typical applications. If the
reactor is being installed next to a heat sensitive instrument or control device, we recommend reviewing
specific requirements or heat limitations. Line reactor heat loss information is available in the standard TCI
product literature or on the web
.
These reactors are designed to be floor-mounted, or wall-mounted. Large open-style devices should be panel
mounted by incorporating a bracket that would act as a shelf to support the reactor and/or enclosure. When
installing an open style device in an existing control cabinet, drive cabinet, motor control center, or other
large enclosure, the reactor should be mounted in the lower half of the cabinet to prevent hot spots or
pockets of heat. Locating the reactor in the lower half of the cabinet typically allows better thermal
dissipation and heat convection. Reactors with ducts should be mounted vertically for proper cooling.
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