PQ-Box Trade-in Promotion: Only From October 1 to December 31 2026

Receive an Attractive Discount on Your PQ-Box Order for the Trade-in of an Old Device (PQ-Box 100 or 3-Phase Power Quality Analyzer From a Third-Party Supplier)

PQ-Box Trade-in Promotion: Only From October 1 to December 31 2026

For a Limited Time: Receive an Attractive Discount for the Trade-in of Your PQ-Box 100 or Comparable Third-party Device (3-Phase Power Quality Analyzer From a Third-Party Supplier)

We are constantly working to ensure that our power quality analyzers are ahead of their time. To ensure that our customers can benefit from this in the best possible way, we are offering a limited-time PQ-Box Trade-In Promotion. From October 1, 2026 to December 31, 2026, we will trade in your A. Eberle PQ-Box 100 or a comparable third-party device (3-phase power quality analyzer from a third-party supplier) and offer an attractive discount on your PQ-Box order.

Discounts for trade in of an Old Device (A. Eberle PQ-Box 100 or 3-Phase Power Quality Analyzer From a Third-Party Supplier):

Trade in of old device* and purchase of PQ-Box 150 Light/Expert: 500 €**
Trade in of old device* and purchase of PQ-Box 200: 600 €**
Trade in of old device* and purchase of PQ-Box 300: 750 €** or PQ-Box ONE

*old device: PQ-Box 100 or 3-phase power quality analyzer from a third-party supplier
**the discount applies to the net price of the PQ-Boxes (excluding taxes and shipping). The PQ-Box ONE and PQ-Box 50 models are excluded from the promotion.

Short Video Introduction to the PQ-Box Trade-in Promotion

Our Motivation, Your Benefits and the Participation Procedure

In this video, Thomas Schwarz (Application Engineer »PQMobil«) presents the motivation behind the PQ-Box Trade-In Promotion, highlights the advantages of switching to the latest measurement technology by A. Eberle and briefly explains the procedure for participating in the promotion.

Three Simple Steps to Take Part in the PQ-Box Trade-in Promotion

Participation Is Simple and Straightforward

You send your order (quantity and desired A. Eberle PQ-Box models) to your sales contact in your region. Please mention in your order that you take part in the PQ-Box Trade-In Promotion. If you do not know your sales contact in your region yet, please contact us at sales@a-eberle.de so that we can assist you.
For the sake of the environment, we would like to avoid old devices being sent to us. To take part in the PQ-Box Trade-In Promotion campaign, please send the following photos together with your order to your sales contact:
- A photo as clear proof of destruction of the old device (e.g., a destroyed display, cut measurement cables, or a drilled hole through the device)
- A photo of the nameplate of each old device
  
  You can trade in one old device per purchased new PQ-Box 150/200/300. If you order several PQ-Boxes and would like to trade in several old devices, please upload with the form both required photos (proof of destruction + photo of nameplate) for each old device you want to trade.
The discount will be applied to your order. You will receive the invoice with the discount already applied from your sales contact.

If you have any questions about the PQ-Box Trade-In Promotion or other inquiries, feel free to contact us via email at sales@a-eberle.de.

Win a PQ-Box ONE

The Most Creative Old Device Photo Wins

As part of our PQ-Box Trade-in Promotion, a photo of your legacy device is automatically submitted when you participate in the promotion. From all submitted photos, we will select the most creative one.
The winning entry will be featured on our social media channels. The winner will receive a PQ-Box ONE free of charge.

10 Reasons to Choose a Latest-Generation PQ-Box

01. Higher Sampling Rate of the Power Quality Analyzer - Troubleshooting in Frequency Ranges up to 170 kHz

New power electronic loads and energy generators cause grid disturbances at increasingly higher frequencies. The switching frequency of these loads and generators depends on their power rating. In the > 30 kW to MW range, the switching frequency is approximately 2.5 kHz to 8 kHz. At power levels up to approximately 30 kW, the switching frequency is significantly higher. For example, solar inverters typically have switching frequencies between 16 kHz and 18 kHz, while EV charging stations generate disturbances between 10 kHz and 80 kHz. According to the Nyquist-Shannon sampling theorem, a power quality analyzer must sample at least twice as fast as the frequency to be captured. This means that, for example, an instrument must sample voltages and currents at a minimum of 40 kHz to detect disturbances caused by a solar inverter.

*Figure 1: Example of grid disturbances from a solar installation measured with a PQ-Box 200 (40 kHz)*

*Figure 2: PQ-Box 100 (10 kHz) at the same measurement point - the old PQ-Box 100 cannot detect the disturbance signal*

As a result, grid disturbances in the frequency range from 2 kHz to 150 kHz are continuously increasing due to the growing use of power electronics. Power quality standards for public and industrial grids already specify limit values up to 150 kHz, for example IEC 61000-2-2 for public low-voltage grids and IEC 61000-2-4 for industrial grids.

*Figure 3: FFT spectrum of the PQ-Box 300 – one week 3D- visualization of supraharmonics up to 300 kHz*

02. Standards-Compliant Measurement According to IEC 61000-4-7 from 2 kHz to 9 kHz

The frequency range covered by compatibility levels has been extended in many current standards. For example, the application guidelines VDE AR 4100, 4110 and 4120 for connecting customer installations to low-, medium- and high-voltage grids now include limit values up to 9 kHz for voltages and currents. The latest generation of A. Eberle PQ-Boxes can provide these measured values in compliance with the relevant standards. The current D/A/CH/CZ guideline also includes limit values up to 9 kHz.

With the current version of the WinPQ mobil power quality analysis software, users can create complete measurement reports "at the touch of a button" using pre-installed standards-based evaluation templates in accordance with common standards and guidelines.

*Figure 4: Grouping method for voltage and current harmonics from 2 kHz to 9 kHz according to the standard, using the WinPQ mobil power quality analysis software*

03. Changes to IEC 61000-4-30

The current measurement standard IEC 61000-4-30 Ed. 4 (2026 edition) has been significantly expanded in scope. The PQ-Box 100 and older devices from other manufacturers were developed according to an earlier edition, while the latest generation of devices (PQ-Box 50/150/200/300) already fully complies with the latest Edition 4 requirements for Class A reference measuring instruments. This prepares you well for future requirements and ensures that your device meets the current standard requirements.

04. Wider Selection of Measured Values

While the PQ-Box 100 was already able to record many different measured values continuously and in parallel, the latest generation of devices calculates more than 2,700 measured values with the PQ-Box 150 and up to 10,000 measured values with the PQ-Box 300 in parallel during each measurement. These include, for example, active and reactive power for all harmonics as well as their phase angles and direction, helping to identify the sources of these disturbances. In addition, the devices cover the supraharmonic frequency range up to 150 kHz. Older devices from other manufacturers as well as the PQ-Box 100 are unable to detect many of today's disturbance phenomena.

*Figure 5: Detection of supraharmonics up to 150 kHz in 200 Hz bands (PQ-Box 300)*

05. Significantly Expanded Technical Specifications

Battery: PQ-Box 100: approximately 30 seconds vs. PQ-Box 150: 4 hours. The extended battery runtime provides backup during power failures and supply interruptions.

Memory: The storage capacity for measurement data has been expanded to 32 GB as standard for the PQ-Box 150/200/300.

Display: On the PQ-Box 150/200/300, a graphical color display replaces the monochrome display used on the PQ-Box 100 and older devices from other manufacturers. A phasor diagram or oscilloscope view, for example, can be displayed directly on the device. This makes it easy for users to identify possible PQ-Box connection errors. Device parameterization using the larger display and operating buttons is also easier and more user-friendly than with a PQ-Box 100 or devices from earlier generations. Password protection: The PQ-Box can be protected by password against unauthorized use.

06. Communication Options with a PQ-Box

Do you want to know remotely how your measurement is progressing? Have enough events already occurred? Can the measuring device already be removed from the measurement site? With a PQ-Box, this is possible in combination with a 4G/5G wireless modem connected via the interface of the power quality analyzer.

*Figure 6: Overview of all PQ-Box-to-PC communication options*

WLAN Interface

All devices of the latest PQ-Box generation feature a WLAN interface. This allows the measuring devices to be operated wirelessly via a PC or smartphone. For example, a PQ-Box can be operated in a locked room or outdoors at a pole-mounted substation without having to establish a cable connection.

07. PQ-Box App

A free app for Android and iOS is also available, allowing you to parameterize your PQ-Box and display extensive live measurement data on any smartphone.

*Figure 7: Overview of the extensive functions of the free PQ-Box App for Android and iOS*

08. Flexible AUX input or a 5th current input

A flexibly configurable additional AUX input, or a 5th current input, greatly expands the range of applications for the PQ-Box. For example, a temperature sensor can be connected to any PQ-Box 200 or PQ-Box 300 to record the temperature in a switch cabinet or at a transformer alongside the power quality measurement. Another application may require measuring residual current at an RCD or simultaneously recording PE conductor current on a grounding strap. A trigger threshold can also be set for the 5th measurement input, or the measured value can be captured using the high-speed recorders in the event of a disturbance.

*Figure 8: Measurement of residual current at an RCD, including analysis of the fundamental component and supraharmonic currents*

09. Measuring Fast Switching Transients

Fast switching transients are not uncommon in industrial applications. Capturing these extremely fast events requires a high sampling frequency combined with a very large measuring range. Our PQ-Box 200 is specifically designed for this purpose, sampling signals at 4 MHz and providing a measuring range of +5 kV/-5 kV.

*Figure 9: Fast switching transients in an industrial installation, measured with a PQ-Box 200*

10. Intuitive Operation & Analysis Software for a Smooth Transition

The user interface of the PQ-Box 150, PQ-Box 200 and PQ-Box 300 has a consistent design. Intuitive menu navigation enables users to get started quickly and makes it easier both to switch between different PQ-Box models and to transition from measuring devices made by other manufacturers.

In addition, WinPQ mobil provides powerful and user-friendly analysis software for convenient evaluation, visualization and documentation of measurement data.

Not Sure What Device Is the Right One for You?

Find the Right Power Quality Box for Your Application

PQ-Box 150

PQ-Box 200

PQ-Box 300

20.48 kHz

Sampling frequency voltage

20.48 kHz

Sampling frequency current

4 (24-bit)

Input voltage (resolution)

4 (24-bit)

Input current (resolution)

•

Binary input

4GB (32)

Memory size

WLAN

4.0 h

Battery runtime

40.96 kHz

Sampling frequency voltage

40.96 kHz

Sampling frequency current

up to

4 MHz

Sampling frequency transient measurement

4 (24-bit)

Input voltage (resolution)

5 (24-bit)

Input current (resolution)

•

Binary input

8GB (32)

Memory size

WLAN

4.0 h

Battery runtime

40.96 kHz

Sampling frequency voltage

40.96 kHz

Sampling frequency current

409.60 kHz

Sampling frequency transient measurement

4 (24-bit)

Input voltage (resolution)

5 (24-bit)

Input current (resolution)

•

Binary input

8 GB (32)

Memory size

WLAN

3.5 h

Battery runtime

Learn more about »PQ-Box 150«

Learn more about »PQ-Box 200«

Learn more about »PQ-Box 300«

Do You Have Any Questions
About the PQ-Box Trade-in Promotion?

Get in Touch With Us.

Contact Now

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