Allen-Bradley Bulletin 160 Smart Speed Controllers

Allen-Bradley Bulletin 160 Smart Speed Controllers, also identified as 160 SSC drives, are compact variable frequency drives for three-phase AC motors. The assembly combines a power conversion section, control terminals, status indicators and optional plug-in programming or communication modules. Series C ratings cover 0.37 to 4.0 kW, with programmable output frequency from 0 to 240 Hz. Analog Signal Follower models accept an external speed reference, while Preset Speed models select programmed frequencies through control inputs. Adjustable acceleration, deceleration, current limiting and motor overload protection support machine operation. Optional modules provide local parameter access, DeviceNet or serial communication and dynamic braking where supported. The platform is used for basic variable-speed machinery, with replacement selection based on input supply, output current, model type and firmware compatibility.