Noise Attenuation to meet your needs.

Power Conditioners

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Build configurations and capabilities

Electrical Characteristics

Power rating=Up to 500 kVA

Phases=1 + 3

Frequency=50/60 Hz

Voltages=Up to 600 Vrms

Terminal Configurations

Copper buss bar

Silicon bronze hardware

Terminal strip

Ring-lug compatibility

Touch-safe configurations

Lexan covers


Noise Attenuation


0.05 mHz=10 dB

0.15 mHz=40 dB

0.50 mHz=60 dB

1.50 mHz=60 dB

5.00 mHz=60 dB

20.00 mHz=55 dB


0.05 mHz=50 dB

0.15 mHz=50 dB

0.50 mHz=60 dB

1.50 mHz=60 dB

5.00 mHz=60 dB

20.00 mHz=55 dB

Enclosures and weather

NEMA enclosures

NEMA 1: General purpose

NEMA 3: Weather-resistant (falling dirt, windblown dust, rain, sleet, snow, formation of ice)

NEMA 3R: Same as 3, omits protection against windblown dust

NEMA 4: Watertight

NEMA 4X: Same as 4, but stainless steel

NEMA 6: Submersible



Circuit breakers

EMO switches

Locking devices


Line filters


Ring-lug compatibility

Touch-safe barriers

Power conditioners are isolation transformers in enclosures assembled with a variety of associated electronic components to provide high levels of noise attenuation over a broad spectrum of frequencies. The main transformer design and selected components are chosen depending on the required level of noise attenuation. These are often combined with circuit protection, GFI's and/or any number of other electromechanical components.

Equipment manufacturers find it advantageous to add line (power) conditioning to their systems in order to protect against the instability of global power sources. Line conditioners protect against voltage spikes that can damage sensitive electronics.

QT&E power conditioners work to both protect systems from voltage spikes and increase throughput on yield by reducing electrical interference that can disrupt equipment functions and production processes.

Examples of Harmonic-Mitigating Transformers


750kVA Harmonic-Mitigating Transformer

3-Phase, 60Hz

Primary=4,160Vrms L-L Delta

Secondary=480Vrms L-L at 451Arms

Phase shifted=30o

NEMA1 enclosure

NRTL to UL 1561, CE Mark


185kVA Harmonic-Mitigating Transformer

3-Phase, 50/60Hz

Primary=460/470/480/490/550Vrms L-L Delta

Secondary=208/120Vrms @ 185kVA

Circuit protection

NEMA1 enclosure

NRTL to UL 1561, 508A, CE Mark