The Allen Bradley 509-EOB is a non-reversing, three-phase starter designed for open-type applications. It operates at 480 VAC for 60 Hz systems and 440 VAC for 50 Hz systems, making it versatile for different electrical standards. This starter is sized at NEMA 4 and is rated for up to 135 amps and 100 horsepower, suitable for controlling medium to large motors. Constructed with a eutectic alloy, it ensures reliable performance in demanding environments. You can find this robust motor starter distributed by BSP Automation, offering a dependable solution for your industrial control needs.