Good Chromalox 2110-R3100 Temperature Controller

Chromalox 2110-R3100 is a 1/4-DIN temperature controller designed for compact, single-loop process control. It accepts selectable Thermocouple or RTD inputs and provides a main control output via a 20 A Form A relay (R3) compatible with 120/240 VAC loads, powered from a 100–240 VAC supply. An optional alarm package can be added to provide a Form C relay (5 A at 120 VAC, 2.5 A at 240 VAC) for signaling or interlock applications without burdening the main output. This model is part of the 2110 family and is intended for panel mounting in industrial environments where reliable temperature control is required and space is at a premium. When wiring sensors, you can choose Thermocouple or RTD sensors to suit your process needs, maintaining a compact footprint while delivering Chromalox reliability. The 2110 family also supports other output configurations, but the 2110-R3100 specifically targets the higher-current R3 output with optional alarm signaling.