Transformer speed regulator RV ..B-2
Transformer controllers RV ..B-2 are designed to change motor rotating speed by changing voltage. Regulators are with transformers thermoprotection function. Steps are with fix voltage and are changed with rotary switch. Regulators are equipped with 2 rotary switches. Rotary switch selection can be made with external signal. In this case can be selected one of set speeds. To one controller more than one motor can be connected, if total current of all motors is less than maximum controller current.