MTE SineWave Guardian Catalog

SineWave

™

Guardian

Product Selector

For motor protection,
there is nothing better.

Increases motor life

Easy to integrate, install and service

Operates in high ambient temperatures

High performance and reliability

Three-year warranty

Motor protection and power quality don’t have to be
a mystery. MTE makes it easy. Case in point: our SineWave
Guardian™ Filter. This best-in-class filter delivers
unequaled performance in cleaning the PWM waveforms
generated by Variable Frequency Drives (VFDs). It virtually
eliminates high frequency content and voltage peaks,
thereby reducing motor heating to give you extended
motor life – and less downtime. The SineWave Guardian
also offers incredible reliability and durability. It is more
efficient and tolerates higher ambient temperatures,
making it ideal for a variety of applications from steel mills
to oil fields. Its modular design and smaller footprint make
it easier to integrate and install. It all adds up to the best
SineWave Filter, and the best value on the market today.

Improve efficiency, improve motor life, and improve your

™

bottom line with our new SineWave Guardian

SineWave Guardian™ Filters transform the output of
Variable Frequency Drives (VFDs) to a near perfect
sinusoidal waveform for the best level of motor
protection. MTE’s unique, patent-pending design offers
high performance with smaller size and better efficiency
than traditional LC Filters.

.

SineWave
Guardian

™

Increase motor life: Reduce motor heating through
reduction of high frequencies associated with VFD
output and also reduce motor insulation stress through
reduction of motor peak voltages.

Reduce motor audible noise: Reduce audible noise
through reducing high frequencies associated with
VFD output.

Reduce radiated emissions: Reduce emissions through
reducing high frequencies associated with VFD output.

Protect your motor cable: The reduction of high
frequencies associated with VFD output eliminates the
need for special motor cables.

Performance Specifications

Conventional 3 phase
motors operating in volts

Service Load Condition

Input Voltage 380V - 480V +/- 10%

Harmonic Voltage Distortion 5% maximum @ 2kHz

per hertz mode,
standard step-up
transformer optional

Application Configurations:

SineWave Guardian

Filters

Extreme Long Lead to Motor

SineWave Guardian

VFD

Long Lead with Step-up Transformer

Multiple Motors

Filters

SineWave Guardian

Filters

SineWave Guardian Performance:

™

™

™

Inverter Switching Frequency 2kHz to 8kHz

Inverter Operating Frequency

Maximum Ambient
Temperature

Insertion Loss (Voltage) 6% maximum @ 60Hz

Efficiency >98%

Altitude Without Derating 3,300 feet above sea level

Maximum Motor Lead Length 15,000 feet

Relative Humidity 0% to 95% non-condensing

Current Rating

Final product specifications subject to change at anytime.

6Hz to 75Hz; >75Hz to
120Hz with derating

-40C to +60C modular filter

-40C to +55C enclosed filter

-40C to +90C storage

100% RMS continuous; 150%
for 1 minute intermittent

With SineWave GuardianWithout SineWave Guardian

The SineWave Guardian is a SineWave Filter which protects
motors from damage by “cleaning” the sine wave waveform
that is generated by the Variable Frequency Drive.

How to properly
size your filter

• Reference motor nameplate to determine motor
HP or KW and Full Load Amps

• Verify motor meets inverter duty standards per
NEMA MG1 Section 31

• Select filter based on Motor Full Load Amps

Do not exceed filter’s maximum

current rating (amps)

• Specify enclosure style
Open (No enclosure)
NEMA 1/2 (General Purpose Enclosure)
NEMA 3R (Outdoor Enclosure)

Motor
Protection

Derating Curves:• Determine voltage and frequency requirements

Table 1: Drive Output Frequency Derating

• Determine derating requirements

Reference Performance Specifications table on
previous page as well as derating tables listed
below:

Table 1: Drive Output Frequency Derating
Table 2: Altitude Derating Curve

Understanding the SineWave Guardian

Part Number:

SWG X _ _ _ _ X

SineWave Guardian

Enclosure Type

M=Open Magnetics (No Enclosure)
G=General Purpose (NEMA 1/2)
W=Weather (NEMA 3R)

Table 2: Altitude Derating Curve

Current Rating

0002 is 2 Amps
0720 is 720 Amps

Voltage Frequency Code
D (380V - 480V)