Fluke-i 40s-EL-3PK-Current-Clamp-Transformer-Set-for-Mains-Analyser-1730-FLUKE-4357438-The-Fluke-i 40s-EL-is-a-Clamp-On-Current-Transformer-that-is-used-in-conjunction-with-the-Fluke-1730-Three-Phase-Electrical-Energy-Logger-for-low-current-measurement-It-is-suitable-for-making-measurements-up-to-40A-&-also-measures-accurately-on-1A-&-5A-secondary-current-transformers-The-i 40s-EL-jaw-is-capable-of-being-clamped-on-current-conductors-up-to-15mm-in-diameter-Fluke-i 40s-EL-3PK-Current-Clam