{"product_id":"allen-bradley-810-ao9a-inverse-time-relay","title":"Allen-Bradley 810-AO9A Inverse Time Relay","description":"\u003cdiv\u003e\u003cp\u003eAllen-Bradley 810-AO9A Inverse Time Relay is a legacy inverse-time current relay from Allen-Bradley’s Bulletin 810 family, designed to deliver time-delayed tripping proportional to overload current in protection schemes. In operation, current above a preset threshold initiates a controlled delay before the relay releases, enabling coordinated protection with other devices in motor, feeder, or distribution circuits. The Bulletin 810 family uses mechanical timing via a dashpot assembly, with variants associated to Series A or Series B configurations; timing behavior is set by this dashpot arrangement rather than electronic components. Ideal for classic protection schemes where inverse-time characteristics are required, the 810-AO9A supports coordination by allowing faster trips for higher currents while providing longer delays at lower overloads, reducing nuisance trips in multi-device protection schemes. Note that exact specifications (input current ranges, trip thresholds, coil voltages, and mounting details) are model-dependent, so consult an official Allen-Bradley listing or datasheet for this suffix to verify compatibility with existing relay and control hardware.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"New","offer_id":51657438560558,"sku":null,"price":217.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_2f4f2c14-d9a6-47a2-a318-9a80c8becaca.jpg?v=1769468975","url":"https:\/\/plgautomation.com\/products\/allen-bradley-810-ao9a-inverse-time-relay","provider":"PLG Automation ","version":"1.0","type":"link"}