ABB’s frequency converter is designed for machine applications that require a high level of protection. Because no special enclosures and cabinets are required, the closed design is cost-effective, speeds installation, and gets the drives into operation quickly, according to the company. Offered in a 0.5- to 10-hp (0.37- to 7.5-kW) range, the ACS350 general machinery drive with UL Type 4X (IP66) protection also features an optional integral disconnect switch when there is a need to isolate the motor and enable a safe working environment for maintenance and servicing. Suitable for use in wash-down and high-dust environments, the drive’s sleek design does not provide any nesting places for bacteria, and all components are protected from ingress of water. The control panel is designed for use in humid environments and is protected against infiltration of dust by a plastic window; the fan is integrated into the housing of the unit.