TCi V1k series Installation Manual Download Page 2

V1k KLC-Series Motor Protection Filter 

Installation Instructions

Installation Checklist

• 

Please see V1K installation drawings, hosted on the 

TCI website, for unit dimensions, mounting hole 

pattern, mounting orientation, wire entry locations, 

unit weights, and other unit specific installation 

notes. 

• 

Make sure that the installation location will not be 

exposed to direct sunlight, rain or dripping liquids, 

corrosive liquids or gases, explosive or combustible 

gases or dust, excessive airbourne dirt and dust, or 

excessive vibration.

• 

Select a mounting area that will allow adequate 

cooling air and maintenance access. 

• 

Make sure that all wiring conforms to the 

requirements of the National Electric Code (NEC) 

and\or other applicable electrical codes. 

• 

Ground the V1k Ouptut Filter to a dedicated system 

ground to ensure safety and filter performance. Use a 

properly sized grounding conductor.

• 

Wire the output power terminals of the VFD, T1(U), 

T2(V), & T3(W) to the input terminals of the V1k, 

A1, B1 & C1.

• 

Wire the output power terminals, of the V1k, A2, B2 

& C2 to the motor power connections. 

• 

Make sure the VFD is set for operating modes and 

ranges that are compatible with the V1k Output Filter. 

• 

Check the entire system throughly before energizing 

and operating any equipment. 

•  Current Rating: 2 - 750 Amps, 240 V - 600 V, 

.75 - 600 HP

•  cUL

•  Open, UL Type 1 and 3R Enclosures

•  Efficiency > 98% 

•  Insulation Rating: 600V Class

•  Insulation Class: Class H (180°C or better)

•  Maximum Altitude: 2000 m (6,000 ft) Derating 

necessary above 2000 m

•  Lead Length: Specific applications can reach 

3,000 feet (consult factory for applications above 

1,500 feet)

•  Ambient Temp: Max 40°C

Product Specifications

Wiring Diagram

When you receive the unit, you should immediately inspect 

the shipping container and report any damage to the 

shipping carrier who delivered the unit.

Verify the Application

Make sure the V1k drive output filter is correct for the 

application. The current rating of the V1k should be sized 

to handle the FLA rating of the motor but not to exceed 

110% of the drive output current rating. This output filter 

is best applied matched closely to the load. The V1k drive 

output filter is not selected by the drive input current rating. 

Properly sized and applied, TCI guarantees that the V1k will 

limit motor terminal peak input votage to 150% of the bus 

voltage with a wire lead length of 1,000 feet and a carrier 

frequency of 4kHz. Maximum lead length and carrier 

frequency can vary depending on wire lead type. For best 

performance, the V1k should be installed within 10 feet of 

the drive. 

Variable Frequency Drive Settings

Make sure that the variable frequency drive will be set for 

operation modes and ranges that are compatible with the 

V1k output filter: 

• 

Maximum output frequency: 60 Hz

• 

PWM switching frequency best between 2kHz and 

4kHz

• 

Mode of operation: Do not use with DC braking unless 

the drive application has been confirmed by TCI 

Technical Support

• 

Do not use on overhauling loads without bus voltage 

control.

Mounting an open panel unit

If you are mounting an open panel unit in your own 

enclosure, you must provide an enclosure that is adequately 

sized and ventilated sufficiently to prevent overheating. The 

filter is designed with a maximum ambient temperature 

of 40° C (104°F). If the ambient temperature exceeds 

this value, for any open or enclosed V1K unit, it is the 

responsibility of the customer to provide auxiliary cooling 

to reduce the ambient operating temperature around the 

V1k filter. TCI strongly recommends using auxiliary cooling 

devices such as cooling fans, heat exchangers, or possibley 

air conditioning units when required to maintain the proper 

operating temperature. 
The V1k must be mounted, as per the unit installation 

drawing, on a smooth, solid surface, free from heat, 

dampness, and condensation. Mounting it as per the unit 

installation drawing is important for natural convection 

cooling. A metal plate is provided to mount the V1k on a 

composite surface.  Please see V1K installation drawings 

hosted on the TCI website for unit dimensions, mounting 

orientation, equipment spacing, wire entry locations, and 

unit weights.

Power Wiring

The conduit and wiring from the output of the variable 

frequency drive to the motor must be routed to the V1k 

and then to the motor. TCI recommends a separate 

dedicated conduit run for each drive/filter/ motor run 

unless properly shielded and segregated wiring procedures 

are practiced. Parasitic and induced capacitance can greatly 

reduce the effectiveness of the filter performance. Under 

no circumstances should you wire both control and power 

wire in the same conduit unless the wire way is specifically 

designed for this practice. The line reactor temperature is 

sensitive to lead wire oversizing. Avoid lead wires more 

than five times oversized by copper cross sectional area 

regarldess of the material used. Use 75°C copper conductors 

only or the equivalent, unlesss the wire connector is marked 

for AI/Cu, then the use of aluminum wire is permitted. Use 

only copper conductor on units rated above 80 amps.

Wiring Cable Entry Locations

TCI has provided enclosure knock-outs on the two smaller 

enclosures for incoming and outgoing power cables. 

These are located in a typical wiring location for customer 

convenience. On the two larger size enclosures, TCI has not 

provided knock-outs due to the wide variety of application 

requirements. TCI allows installing electricians the option 

of locating the cable openings at a point of their choosing. 

Grounding

The V1k filter must be connected to the ground of the 

premise’s wiring system. This can be conducted by 

identifying a known premise’s ground near by the filter or 

running a special ground dedicated for the application. The 

ground connection must be made using a wire conductor. 

Metallic conduit is not a suitable grounding conductor. The 

integrity of all ground connections should be periodically 

checked. 

A1

B1

C1

B2

A2

C2

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