E51 NEMA limit switch photoelectric sensors

Product Selection Guide

E51 Limit Switch Style, Modular Sensors
 

Sensing Types and Ranges

• Thru-beam: 300 ft 
• Reflex: 18 and 35 ft 
• Polarized reflex: 15 ft 
• Diffuse reflective: 8, 18 and 40 in 
• Glass fiber optic: range varies with fiber
   

Product Features

• Modular construction consisting of a head, sensor body and receptacle 
• Most E51 photoelectric and inductive heads are interchangeable on all E51 sensor bodies for substantial inventory reduction 
• Same general configurations and dimensions as the E50 limit switch 
• Order as complete assemblies or components for stocking and manufacturing flexibility 
• Keyed, for directional head positioning
   

Technical Data and Specifications

• Operating voltage— 20–264 Vac/dc; 120 Vac; 10–30 Vdc 
• Output function— NO or NC (programmable); or NO and NC (complementary) sensor bodies are available 
• Maximum load current— AC—1.0A continuous, DC—0.6A continuous 
• Enclosure ratings— NEMA 3, 3S, 4, 4X, 6, 6P and 13 Class I, II, III, Division 2, Groups A, B, C, D, F and G (conduit entry only) 
• Response time range— 1 ms to 30 ms
   

Approvals

• UL Listed, E166051, E183975 
• CSA Certified, 50513