AC Line / Load Reactors
User Manual
Data subject to change without notice 28 of 32 INSTR-011 REL. 150109 REV.006
See www.mtecorp.com for current data and CAD drawings
Power Wiring Connection
WARNING
Input and output power wiring to the
reactor should be performed by
authorized personnel in accordance
with the NEC and all local electrical
codes and
REGULATIONS
Verify that the power source to which the reactor
is to be connected is in agreement with the
nameplate data on the reactor. A fused
disconnect switch or circuit breaker should be
installed between the reactor and its source of
power in accordance with the requirements of
the NEC and all local electrical codes and
regulations. Refer to the drive, inverter, or other
electrical equipment user manual for selection of
the correct fuse rating and class.
The reactor is suitable for use on a circuit
capable of delivering not more than 65,000 rms
symmetrical amperes at 480 volts when
protected by Bussman type JJS, KTK, KTK-R,
SPP or T class fuses.
Reactor are designed for use with copper
conductors with a minimum temperature rating
of 75 degrees C. Table 2 lists the wire range and
terminal torque requirements for the power input
and output connections by reactor part number.
Refer to Figure 4 for typical electrical diagrams
describing the application of reactors in both line
and load applications. For reactors supplied as a
component part of a drive system or a
component part of power electronic apparatus
follow the interconnection diagram supplied by
the System Engineer.
Where desirable, a flexible conduit connection to
the reactor enclosure should be made to reduce
audible noise.
WARNING
Failure to connect reactors supplied
as a component part of a drive
system or other power electronic
system according to the system
interconnection diagram supplied by
the System Engineer will result in
equipment damage, injury, or death.
WARNING
If a line reactor or a line reactor and a load
reactor are used with a drive equipped with a
bypass circuit, the reactors must be removed
from the motor circuit in the bypass mode.
Damage to the motor and other equipment will
result if this warning is not observed.
Grounding
A stud is provided on enclosed reactors for
grounding the enclosure. The enclosure must be
grounded. Open reactors must be grounded at
the designated grounding terminal or the reactor
mounting holes if no designated grounding
terminal is provided.
WARNING
The frame of line/load reactors must be
grounded at the designated grounding terminal
or one of the reactor mounting holes if no
designated grounding terminal is provided. The
enclosure of reactors supplied in enclosures
must be grounded.
INJURY OR DEATH MAY RESULT IF
SAFETY PRECAUTIONS ARE NOT
OBSERVED.
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