Specifications: • Self-checking shutter assembly • Optical range: 190-270 nm • Supply voltage: 560 VAC (supplied by control) • Mounting threads: 1" NPT • Operating temp: -40°C to 60°C (-40°F to 140°F) • Available in NEMA (Class 1, Div 2, Group C and D) and Cenelec approved explosion proof housing (EEx d IIC T6)