VC Modulating Actuator, (0)2-10 V DC, 24 V AC, packed in eggcrate

Modulating actuator that controls central heating and cooling, fan coil systems, radiators and convectors. Depending on the model, it can be controlled by a low voltage SPST or SPDT switch, pulse-width modulated 24 Vac signal, or floating input, modulating controller.