Chromalox KTLS-312A-048 Over-the-Side Immersion Heater

Chromalox KTLS-312A-048 Over-the-Side Immersion Heater is a tank-mounted heating element engineered to hang over the top edge of a vessel, delivering heat directly into the liquid along the side. Rated at 12 kW and configured for 480 V AC, it belongs to Chromalox’s TLS/KTLS family of over-the-side heaters that use a metal-sheath element with a stainless steel riser, enabling reliable service in a variety of liquids. The design keeps the heated portion submerged while the moisture-resistant terminal enclosure sits above the tank, with a 1-inch NPT conduit opening for electrical connections. This model supports multiple voltage and phase configurations (including 240 V and 480 V, in 1- or 3-phase arrangements depending on the specific configuration), providing flexible installation options for different tanks and electrical systems. Common applications include heating liquids in storage or processing tanks where quick heat transfer and easy heater removal are important; the L-shaped metal-sheath construction helps place heat toward the liquid while maintaining accessibility for maintenance.