What is Panduit’s VeriSafe Absence of Voltage Tester (AVT)?

Verifying the absence of voltage before opening electrical equipment is one of the most critical steps in any lockout/tagout procedure; it also happens to be one of the most frequently rushed.

The traditional process involves multiple manual steps, PPE requirements, and enough room for human error that NFPA 70E dedicates significant attention to it. In high-cycle environments, that process can take up to 20 minutes per verification. The VeriSafe Absence of Voltage Tester from Panduit cuts that to 10 seconds.

Here’s the short version: Panduit's VeriSafe Absence of Voltage Tester (AVT) automates one of the most critical (and often rushed) steps in electrical safety: verifying equipment is fully de-energized before maintenance. With a single button press, VeriSafe performs a complete, self-checking voltage test in about 10 seconds, reducing human exposure, eliminating PPE requirements during verification, and making NFPA 70E compliance easier to document. Available in 600V and 1kV models, it's a practical safety and productivity upgrade for control panels, data centers, and industrial facilities. Keep reading for the full breakdown.

What Is an Absence of Voltage Tester?

An absence of voltage tester is a permanently mounted device that automates the process of confirming electrical equipment is fully de-energized before maintenance begins. Unlike a portable voltmeter—which a technician carries to the equipment, connects manually, and reads—an AVT is built into the equipment and activated with a single button press. That removes PPE requirements during the verification step, standardizes the process regardless of who's performing it, and creates a consistent, auditable safety step that holds up under NFPA 70E scrutiny.

How VeriSafe AVT Works

The VeriSafe's operation is straightforward by design. Press the button, and the device automatically runs a complete three-phase absence-of-voltage test that checks phase-to-phase and phase-to-ground voltages across all conductors. If the equipment is de-energized, a green SAFE indicator confirms it. If voltage is present anywhere in the circuit, a red UNSAFE indicator stops the process. The whole sequence takes about 10 seconds.

Every test cycle also includes self-checking. The VeriSafe verifies its own connections and sensing circuits before reporting a result, which means a SAFE indication is a confirmed safe condition, not just an absence of a reading. That self-verification is part of what makes the device compliant with UL 1436 and consistent with NFPA 70E's requirements for absence-of-voltage testing.

Where Verisafe Fits

VeriSafe is the right answer anywhere electrical maintenance workers regularly need to verify de-energized equipment before opening it. Three environments come up most often:

Control Panels

Control panel maintenance is one of the highest-frequency touchpoints for absence-of-voltage verification in most facilities. Technicians access these enclosures regularly, under time pressure, and often with varying levels of experience. A permanently mounted AVT removes variability from the process and ensures the same safe procedure is followed every time, by every person.

Data Centers

In a data center, uptime pressure and dense, high-value equipment make the risk calculus around electrical maintenance especially acute. VeriSafe cuts verification time without sacrificing thoroughness; a critical balance when every minute of maintenance activity carries potential downtime exposure.

Industrial Facilities and Manufacturing

Any facility with active NFPA 70E obligations and regular electrical maintenance activity is a candidate for VeriSafe. In high-cycle environments—where equipment is accessed frequently as part of normal operations—the time savings compound quickly, and the consistency of an automated process pays ongoing dividends.

Compliance: NFPA 70E and UL 1436

NFPA 70E requires that absence-of-voltage verification be performed with equipment rated and listed for the purpose. The VeriSafe is listed under UL 1436 as a voltage tester, independently tested and confirmed for this specific function. That listing also makes it easier to document the process in a written safety program, which matters when demonstrating NFPA 70E compliance to an inspector or auditor.[CD2]

VeriSafe Models: 600V and 1kV

Panduit offers two core VeriSafe models. Choosing the right one comes down to your system voltage and whether you need network connectivity.

VeriSafe 600V (VS-AVT)

The 600V model is designed for standard industrial control panels, motor control centers, and switchgear operating at or below 600V AC, which covers most industrial installations in North America. It's a straightforward fit for facilities looking to bring their absence-of-voltage verification process into compliance without adding system complexity.

• Part number VS-AVT-C08-L10: The standard configuration for most 600V panel installations, with an 8-foot cable and 10-foot indicator lead. Click to see it on our Web Store.
• Rated to 600V AC: Covers most North American industrial distribution and control equipment.
• Hardwired SAFE/UNSAFE indication: Clear visual and audible output that requires no interpretation from the technician.

VeriSafe 1kV (VS2-AVT)

The 1kV model extends VeriSafe capability to higher-voltage equipment—up to 1000V AC—and adds an optional network module that opens the door to remote monitoring and integration with broader safety systems. This model also sets itself apart from the 600V model with its ability to detect DV voltage and is approved for hazardous locations. For facilities managing large or complex electrical infrastructure, the ability to log verification events or integrate AVT status into a control system is a meaningful operational upgrade.

• Part number VS2-AVT-3PB-08: The standard 1kV configuration, compatible with three-phase systems up to 1000V AC. Click here to see it on our Web Store.
• Optional VS2-NET Network Module: Enables remote status monitoring and event logging, useful for facilities with centralized safety management systems.
• XT environmental protection: Available for installations in wash-down, corrosive, or otherwise demanding environments.

Why It's Worth the Upgrade

The case for VeriSafe is straightforward:

• Reduces the risk of human error: The automated test sequence removes manual steps that are easy to skip or perform incorrectly under time pressure.
• Adds an extra level of safety: Being able to confirm power flow without opening the panel prevents technicians from accidentally being exposed to harmful voltage.
• Eliminates PPE requirements for the verification step: Technicians can confirm safe conditions without suiting up, which removes a barrier to doing the check properly every time.
• Cuts verification time from up to 20 minutes to 10 seconds: In high-cycle environments, that adds up to real operational savings year over year.
• Standardizes the process across your team: The result doesn't vary based on who's doing the test or how carefully they follow a manual procedure.
• Simplifies NFPA 70E compliance: A listed, permanently mounted AVT is easier to document and defend than a portable test procedure that relies on individual execution.

Still not sure which one is right for you? Here’s a helpful table to compare:

Talk to the HESCO Team

For most industrial facilities doing regular electrical maintenance, VeriSafe is a straightforward upgrade: immediate safety payoff, a simpler compliance story, and real-time savings that compound quickly in high-cycle environments.

If you're evaluating VeriSafe or deciding between the 600V and 1kV models, the HESCO team can help you get it right. We've helped customers across industries specify and implement AVT solutions configured correctly from day one. Reach out today and tell us about your application so we can help you determine if the VeriSafe Absence of Voltage Tester is right for you.