Cutler-Hammer E57LAL18T111SD Proximity Switch

Cutler-Hammer E57LAL18T111SD Proximity Switch is a four-pin, PNP DC sensor designed for industrial automation. It operates on 6–48 VDC and provides a sourcing switching output to feed PLCs, relays, or other control inputs. As a non-contact proximity device, it detects the presence of a nearby target without physical engagement, enabling fast, repeatable sensing in manufacturing lines, packaging equipment, and automated assemblies. The E57LAL18T111SD belongs to Cutler-Hammer's proximity switch lineup and uses a DC operating method with a 4-pin configuration that aligns with standard wiring conventions for 6–48 VDC control circuits. When active, the PNP output sources current from V+, signaling a high state to the connected input; when the target is not detected, the output remains inactive. For proper installation, follow typical DC sensor wiring practices and ensure appropriate protection and compatibility with your control system.