The Fluke I40S-EL3X/3PK Clamp-on Current Transformer 3-Pack provides precise current measurement for industrial, commercial, and laboratory electrical systems. These CTs allow technicians, engineers, and electricians to measure AC currents safely without direct contact with high-voltage conductors, making them ideal for power quality analysis, load monitoring, and energy auditing.
This 3-pack set ensures convenient simultaneous measurement of three-phase systems, improving efficiency and reducing setup time. Compatible with standard power meters and analyzers, the I40S-EL3X CTs deliver reliable and repeatable measurements, even in confined spaces or complex wiring environments. Durable construction ensures long-term reliability for field, workshop, or laboratory use.
Key Features
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3-pack of clamp-on current transformers for three-phase measurement
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Safe, non-intrusive AC current measurement
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Compact and lightweight design for easy handling
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Compatible with standard multimeters and power analyzers
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Accurate and repeatable measurements in industrial and laboratory applications
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Durable construction for field, lab, or workshop use
Included accessories: Three clamp-on CTs, protective carrying case, and user manual.
Compliance: Meets international electrical safety standards for current measurement.
Benefits for Lab and Field Users
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Enables simultaneous three-phase current monitoring
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Reduces setup time and simplifies multi-phase measurements
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Safe and reliable operation without disconnecting circuits
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Durable and portable for repeated use in various environments





