Mallory Sonalert SC110EP Audible Alarm Transducer

The Mallory Sonalert SC110EP Audible Alarm Transducer is a panel‑mount, piezoelectric alarm designed for continuous signaling in control and safety panels, operable on a 30–120 V supply (AC or DC). It emits a near‑1,900 Hz tone intended for rapid recognition in industrial environments, delivering a sound pressure level typically in the mid‑60s dB range at 61 cm when driven at 30 V. The compact 42.85 mm (1.687 in) diameter device stands about 35.54 mm (1.399 in) tall and mounts securely in a panel via screw terminals or a 0.250 in (6.35 mm) quick‑connect tab. Terminals are tin‑plated brass and the housing is a 6/6 nylon body, built for durability in electrical enclosures, with ingress protection ratings that include NEMA 3R, 4X, and 12. Typical current draw is 7–13 mA depending on supply voltage and drive conditions. This model is part of Mallory Sonalert’s 30 mm panel alarm family, making it suitable for alarm panels, indicator assemblies, and other warning circuits that require a dependable, continuous audible alert without external amplification.