Chemelex AMC-1A Ambient Sensing Thermostat Stainless Steel Probe

The Chemelex AMC-1A ambient‑sensing mechanical thermostat controls heat‑tracing systems for freeze protection in nonhazardous locations, delivering a SPDT switch rated 22 A at 125/250/480 VAC to drive a single circuit or a contactor for larger loads, with a stainless‑steel sensor assembly permanently mounted to the enclosure for robust ambient sensing. Housed in a NEMA 4X, polyurethane‑coated cast‑aluminum enclosure with stainless‑steel hardware and a single 3/4" (19 mm) NPT conduit hub, it is built for durable installation in challenging environments. The unit offers an adjustable setpoint from −15 °F to 140 °F (−9 °C to 60 °C) and a maximum measuring range of 160 °F, with overall dimensions of about 5.6 in (H) × 4.9 in (W) × 3 in (D). Designed to control heating circuits for freeze protection, the AMC‑1A can operate a single circuit or feed a contactor for multiple circuits, making it suitable for ambient sensing control in industrial and commercial heat‑tracing applications.