... Gear:stainless steel,Litharge;Reduce Down Panel:zine Motorized Actuator is electromechanical product.Technical data MaterialGear,Stainless steel,Litharge, ... Shell:fire-proof PC ABS plastic.VA-VB 7000 Series Actuator has reversible increasing and proportional two control modeCharacteristics: -Low AC ... 010V DC or 420mA DC control (For VA-7101(VA-7201)and VA-7102(VA-7202)only)-Apply to 24mm,36mm,40mm, ...