Allen Bradley W64



The Allen Bradley catalog number W64 refers to a heater element designed for use with eutectic alloy type overload relays in Bulletin 500 line starters. This component, classified as Type W with a trip class 20 rating, is available in multiple sizes to accommodate varying full load amperages—ranging from size 0 at 28.5 amps up to size 3 at 33.5 amps. Additional amperage options are documented separately for specialized applications. Distributed by BSP Automation, this heater element provides reliable protection by ensuring precise overload sensing in motor control systems.
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