Allen-Bradley 520F-BOD Brand Introduction
Allen-Bradley 520F-BOD is 520F series NEMA Size 1 two-speed constant/variable torque motor starter developed by Rockwell Automation for multi-speed three-phase motor discrete control. It specializes in switching high and low speed for consequent pole motors, serving as open-type dual contactor assembly for industrial motor control cabinets. Two-Speed Motor Starter is the core unit of Allen-Bradley 520F-BOD. Two-Speed Motor Starter adopts open frame panel mounting structure for standard motor control enclosures. Two-Speed Motor Starter is equipped with dual eutectic alloy overload relays for high-speed and low-speed overcurrent protection. Two-Speed Motor Starter realizes high/low speed switching control of field multi-speed motors according to control circuit logic. Allen-Bradley 520F-BOD provides stable Drive for workshop field multi-speed motor load control. Drive supports max 600VAC operating voltage and 27A continuous rated current, 115-120V 60Hz control coil. Drive has independent overload protection for high speed and low speed circuit. Drive features matched silver alloy contact groups for reliable two-speed switching operation. Allen-Bradley 520F-BOD features reliable Transmission for control circuit and field multi-speed motor devices. Transmission communicates via control wiring loop. Transmission is fully compatible with low voltage motor control systems and auxiliary control components. Transmission delivers fast switching signals to adjust motor high/low speed operation. Allen-Bradley 520F-BOD is widely used in fans, pumps, machine tools and legacy multi-speed motor control system renovation. With mature Rockwell multi-speed starter technology, this two-speed motor starter works within temperature range 0~40℃ and has strong anti-vibration performance. It provides full lifecycle technical support including wiring, commissioning and after-sales maintenance, serving global users as a trusted NEMA Size1 two-speed constant/variable torque motor starter solution.