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High Efficiency K-Rated Transformers

ULTRA K Series 600K he 5kVA 500kVA sm

High efficiency K-rated power conditioning transformers High efficiency, K-rated power conditioning transformers which meet and exceed DOE 2016 minimum efficiency standards!

“Bad power” in the form of voltage transients, spikes, and high frequency noise can wreak havoc with sensitive electronics and controls! At a minimum … data corruption may occur, causing system upset and unexpected system restart. Worse yet … high energy transients will lead to premature component failure!

The ULTRA-K Series 600K-he is a high efficiency, K-rated, power conditioning transformer, specifically designed to provide a high degree of electrical noise attenuation and transient voltage suppression to protect sensitive electronic loads. Offered with four different K-factor ratings (K4, K7, K13, and K20), the ULTRA-K is fully compatible with non-linear loads, handling the high harmonic currents associated with such loads.

As an owner or specifying engineer, when you select the ULTRA-K over competing brands, you’re simply choosing the very best high efficiency, K-rated, power conditioning transformer available!

Our ULTRA-K transformers are available in single phase models from 5kVA to 25kVA, and in three phase models from 15kVA to 500kVA.

Select An ULTRA-K Transformer



03 30


To our valued customers and industry partners:

Due to the COVID-19 pandemic … effective March 24, 2020 and for the following (3) weeks through April 14, the Governor of Michigan has issued a “stay home, stay safe” executive order restricting …

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06 05

CPC’s “Egress Lighting Integrity Test”

In terms of monitoring, testing, data recording, and recordkeeping, the matrix below shows which of our centralized emergency lighting inverters meet or exceed NFPA 101 (up through and including section


Compliance With NFPA 101     (click image to enlarge)… read more >
04 26

Solutions To Electrical Power Disturbances

Have you ever wanted a simple matrix that illustrates  “which types of electrical power quality products solve which types of power problems”? We have just such a document to help you!

Our “Solutions To Electrical Power Disturbances” flyer:

Identifies common… read more >
03 21

Controlled Power Company Launches Newly Re-Designed Website

Controlled Power Company, a U.S. manufacturer of a full line of commercial, industrial, and medical-grade electrical power quality solutions, announces the launch of its newly re-designed website,   Using a contemporary development platform, the new website was designed with the …

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