{"product_id":"allen-bradley-thermal-overload-592-tpd300-300-5-ratio-304amp","title":"Allen-Bradley 592-TPD300 Thermal Overload Relay","description":"\u003cdiv\u003e\u003cp\u003eAllen-Bradley 592-TPD300 is a NEMA eutectic alloy thermal overload relay (open type) engineered for three-pole motor protection in starter assemblies, with a current range of 120 to 300 A. Powered by a eutectic alloy heater element, this manual-reset overload relay trips when motor current exceeds its setpoint and requires a hand reset to restore operation, a hallmark of the 592 family. This model is explicitly a 3-pole unit for 3-phase motors and is commonly used alongside Allen-Bradley starters; current-sensing current transformers can be used with 592-TPD200\/300\/400\/630 overload relays for accurate protection. Rockwell documentation and support materials also cover renewal parts and compatibility notes for the 592\/593 overload relay family, confirming its role as a replacement option within legacy motor control schemes. \u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51657259286830,"sku":null,"price":116.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_861e79e9-5d70-4445-99f9-39414211531d.jpg?v=1769467276","url":"https:\/\/plgautomation.com\/products\/allen-bradley-thermal-overload-592-tpd300-300-5-ratio-304amp","provider":"PLG Automation ","version":"1.0","type":"link"}