Specialized Tools for Electrophysiology and Cell Biology Research

PowerVar Ground Guard Isolation Transformers

Product Summary

  • Prevents electrical noise interference, hardware destruction, and operational disruption
  • Patented Ground-Guard conditioning circuitry eliminates ground loops
  • Flashing LED if AC outlet is missing its input safety ground
  • Pass-through voltage is < 10V normal mode and < 0.5V neutral to ground
    (meets ANSI/EEE C62.41 standards)
  • Safety agency listed.

The PowerVar is an ideal solution for any environment where the power is either noisy or unstable.

PowerVar Ground Guard conditioners provide protection beyond those of traditional power conditioning products. For example, these units incorporate filter elements within the safety ground circuit to prevent the formation of ground loops, common in many research applications, that can produce significant signal degradation.

This ground conditioning feature, combined with a high energy surge diverter and a power line filter, completely eliminates the need for dedicated external electrical circuits and isolated ground wiring in the building.

The PowerVar Ground Guard technology carries six U.S. and international patents.


Why this technology?

It seems that almost every power protection device on the market today claims to be a power conditioner. But what makes a good conditioner? The correct answer largely depends on the quality requirements of the device being powered.

A system using a linear power supply can have a built-in isolation transformer, but may be sensitive to voltage fluctuations. These systems usually also need some type of surge diverter and voltage regulator.

However, most modern electronic devices use switched-mode power supplies (SMPS). These power supplies are largely immune to changes in power line voltage, but in the interest of making the supply smaller, more efficient and cheaper, the isolation transformer is eliminated from the design.

As such, systems using a switched-mode power supply will require, at a minimum, a surge diverter, a noise filter, and an isolation transformer.

The Powervar Isolation Transformer provides these three services in a small, convenient package. Just plug your Workstation into the device and your power circuit is completely isolated from the external world.

  PV-830 (110V) PV-830CE (220V)
VA Rating 1000 1000
Frequency 60 Hz. 50/60 Hz.
BTU/Hr. Output 171 136
T.H.D. % Added <1% <1%
Load Surge Current @ 1/2 cycle 325 amps 162 amps
Load Surge Current @ 1 second 156 amps 78 amps
Load Surge Current @ 10 seconds 45 amps 23 amps
Input Voltage 120 200-264
Output Voltage 120 200-264
Output Current 8.3 amps 4.16 amps
Efficiency 95% 96%
Voltage Drop No Load to Full Load 5% 5.2%
Earth Leakage Current n/a < 300 uamps
Compliance UL and cUL, RoHS UL, cUL, D-Mark CE, RoHS
Shipping Weight / Dimensions 35 lbs / 20 x 16 x 12" 35 lbs / 20 x 16 x 12"
Back Panel PowerVar Ground Guard Isolation Transformers PowerVar Ground Guard Isolation Transformers
Dimensions Powervar-ABCG830-11_li

Customers from Europe and Australia can use the Multi Channel Systems - Online Shop to order Warner products or create quotes.

Order No. Model No. Product Description USA Price Order
64-0456 PV-830CE Power Line Conditioner 1000 VA, 220 VAC 50/60HZ Login Login
64-0455 PV-830 Power Line Conditioner 1000 VA, 120 VAC 60HZ Login Login

Need support?

Want to know more about our quality products or need assistance in technical support?