Datasheet for the Simplex 4903-9252, 4903-9253, 4903-9254, 4903-9255, published in 2014. Document No: S4903-0017-5. 4 models including 4903-9252, 4903-9253, 4903-9254 and 1 additional variants. Detailed technical specifications, electrical ratings, and agency listings.