Fluke I40S-EL3X 3PK 40A Clamp-on Current Transformer 3-Pack

Description

Product Overview

The Fluke I40S-EL3X 3PK 40A clamp‑on current transformer is engineered for accurate low‑current measurement in demanding industrial and field environments. Each transformer in the three‑pack delivers a measurement range of 0 to 40 amperes, making it suitable for a wide variety of applications, from routine maintenance checks to detailed troubleshooting of electrical systems. The device features a robust, insulated clamp that can securely attach to conductors up to 15 mm in diameter without the need to disconnect the circuit, saving time and reducing risk. Its compact design, combined with a durable housing, ensures reliable performance even in harsh conditions, while the clear analog display provides instant readouts for quick decision‑making. Fluke’s reputation for precision engineering is evident in the consistent accuracy of the I40S‑EL3X, which is calibrated to meet industry standards for both 1 A and 5 A secondary current transformers.

Usage

Designed with the professional electrician, maintenance technician, and industrial engineer in mind, the I40S‑EL3X clamp‑on transformer excels in a variety of real‑world scenarios. Whether you are inspecting motor circuits, verifying transformer loads, or performing preventive maintenance on HVAC systems, the ability to quickly clamp onto live conductors without interrupting service is a significant advantage. The transformer’s lightweight construction—just 2.5 pounds per unit—allows for easy portability in tight spaces, such as conduit runs or crowded control panels. Its wide temperature tolerance ensures accurate readings in both hot factory floors and cold outdoor installations. Additionally, the three‑pack configuration provides redundancy for multi‑site projects, enabling technicians to carry a spare unit for backup or to simultaneously monitor multiple circuits, thereby increasing overall efficiency and reducing downtime.

Why Choose Us

Choosing the Fluke I40S‑EL3X means investing in a product that combines proven reliability with user‑focused design. Fluke’s rigorous quality assurance processes guarantee that each transformer meets exacting performance criteria, delivering repeatable accuracy that professionals depend on. The clamp‑on mechanism is engineered for a secure grip, minimizing measurement error caused by movement or vibration. Fluke also backs the I40S‑EL3X with comprehensive technical support and a responsive customer service team, ensuring that any questions or concerns are addressed promptly. With a proven track record in the electrical testing market, Fluke provides confidence that the I40S‑EL3X will perform consistently over its service life, reducing the need for frequent recalibration or replacement.

Key Features

• Accurate low‑current measurement from 0 to 40 A for precise diagnostics
• Clamp fits conductors up to 15 mm, eliminating the need to disconnect power
• Lightweight, portable design at only 2.5 lb per unit for easy field use
• Durable insulated housing withstands harsh industrial environments
• Fluke technical support and warranty provide peace of mind and after‑sales service

FAQ

Can the I40S‑EL3X be used on both AC and DC circuits?

Yes, the transformer is designed to measure alternating current accurately and can also be used on direct current circuits, provided the current does not exceed the 40 A maximum rating.

What is the minimum conductor size the clamp can safely attach to?

The clamp is calibrated to work on conductors as small as 4 mm in diameter, ensuring reliable contact and accurate readings on a wide range of wire sizes.

How often should the transformer be calibrated?

Fluke recommends a calibration check every 12 months or after any event that could impact accuracy, such as a hard impact or exposure to extreme temperatures.

Is the I40S‑EL3X compatible with Fluke’s data logging accessories?

Yes, the transformer can be paired with Fluke’s compatible data loggers and handheld meters, allowing users to record measurements for later analysis and reporting.

What warranty does Fluke provide for this product?

The I40S‑EL3X comes with a standard two‑year limited warranty covering manufacturing defects and includes access to Fluke’s customer support network for troubleshooting and parts replacement.