The EA51 medium-low torque actuator is well suited for proportional positioning of a fuel valve, butterfly valve, damper and similar applications. The EA51 actuator e has a 90 degree stroke and a fixed 12 second transit time. Standard features include a 100 ohm feedback slidewire and a single SPDT auxiliary switch. All models, except those with transformers, are UL/cUL listed. Askco also stocks crank arms, pushrods, and swivel connectors for EA medium and high torque actuators