Schneider Electric REG48PUNL1RHU PID Temperature Controller

The Schneider Electric REG48PUNL1RHU is a panel-mounted PID temperature controller in a 48 × 48 mm (1/16 DIN) housing that accepts a universal 100–240 V AC supply and drives a single relay output for precise heating and cooling in industrial ovens, packaging machinery, plastics processing equipment, HVAC systems, and process control panels. As part of the Zelio Control REG48 series, it provides auto-tuning, fuzzy logic, and ramp/soak capability to maintain setpoint temperatures, with input options including thermocouples (J, K, R, B, S, T, E, N, PLII), Pt100 RTD, and voltage or current signals (0–20 mA, 4–20 mA, 0–10 V, 0–5 V, 1–5 V, 2–10 V). The unit uses screw terminals for wiring and is offered as an OEM direct replacement, with common replacements including Schneider Electric REG48PUNL1RHU and Telemecanique REG48PUNL1RHU, reflecting its compatibility within Schneider Electric and Telemecanique ecosystems. Its PID control supports precise heating and cooling applications across manufacturing facilities and process-control panels where stable temperatures improve product quality and operational efficiency.