The EM9B is an electronic actuators for motorising VTRE rotary shoe valves. The actuator can be operated manually and has a valve position indicator on the front of the unit. Power consumption: 3 VA. Control signal: 3-point. Working Range: 3-18°. Running time 9° 4 min, 24 Vac +/- 1%. Torque: 15 Nm, IP 54 Protection class.