Cutler-Hammer E57-30LE40-A is a 30 mm inductive proximity switch with a normally open output, designed for non-contact sensing of metal targets in industrial automation. It operates on a 20–250 VAC supply, matching standard AC control circuits, and carries the model designation E57-30LE40-A. With a 30 mm sensing distance, this device provides reliable position detection in panels and automation equipment where mechanical switches are undesirable.
