{"product_id":"allen-bradley-193-ef2a-electronic-overload-relay","title":"Allen-Bradley 193-EF2A Electronic Overload Relay","description":"\u003ch2\u003eAllen-Bradley 193-EF2A Electronic Overload Relay\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 193-EF2A\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e193-EF2A\u003c\/strong\u003e Electronic Overload Relay, operates as a dedicated hardware component for motor current protection, thermal overload detection, and phase monitoring within Bulletin 193 motor control systems.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e193-EF2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eLow energy solid-state design; exact value not specified in available data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eSolid-State Electronic Overload Relay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBulletin Series\u003c\/td\u003e\n\u003ctd\u003eBulletin 193\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eDirect mount to Bulletin 100-C contactor or DIN rail with adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Operational Voltage\u003c\/td\u003e\n\u003ctd\u003eUp to 690 V AC IEC \/ 600 V AC UL\/CSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Insulation Voltage\u003c\/td\u003e\n\u003ctd\u003e690 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Impulse Withstand Voltage\u003c\/td\u003e\n\u003ctd\u003e6 kV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Frequency\u003c\/td\u003e\n\u003ctd\u003e50 \/ 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuxiliary Contacts\u003c\/td\u003e\n\u003ctd\u003e1 NO + 1 NC isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuxiliary Contact Rating\u003c\/td\u003e\n\u003ctd\u003eB600 \/ R300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrip Class\u003c\/td\u003e\n\u003ctd\u003eSelectable or fixed Class 10, 15, 20, 30 depending on application\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReset Modes\u003c\/td\u003e\n\u003ctd\u003eManual, automatic, remote\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Rating\u003c\/td\u003e\n\u003ctd\u003eIP20 finger-safe terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Connection\u003c\/td\u003e\n\u003ctd\u003eScrew terminals, Posidriv \/ slotted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandards Compliance\u003c\/td\u003e\n\u003ctd\u003eUL 508, CSA C22.2 No. 14, IEC\/EN 60947-4-1, CE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Control Integration Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley Bulletin 193 platform is designed for integration with industrial motor control assemblies where PLC-based systems require consistent protection device coordination. I\/O density scaling considerations apply when multiple overload devices are installed within a control panel architecture. Firmware flash compatibility evaluation is required at the controller level when associated automation hardware includes configurable electronic interfaces.\u003c\/p\u003e\n\u003cp\u003eThe 193-EF2A uses solid-state current sensing technology instead of thermal bimetal elements, reducing heat generation inside the starter assembly while maintaining adjustable motor protection parameters. The device provides phase loss detection, phase unbalance monitoring, and visual trip status indication for motor control troubleshooting.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 193-EF2A be hot-swapped during operation?\u003cbr\u003eA: The 193-EF2A is a motor protection device installed within a starter assembly. Hot-swapping should not be performed unless the complete control system design and electrical isolation procedure specifically allow it.\u003c\/p\u003e\n\u003cp\u003eQ: What contactor assemblies are compatible with direct mounting?\u003cbr\u003eA: The unit is designed for direct mounting with Allen-Bradley Bulletin 100-C contactors. Alternative mounting arrangements require the appropriate adapter configuration.\u003c\/p\u003e\n\u003cp\u003eQ: Does the overload relay provide remote reset capability?\u003cbr\u003eA: Yes. The 193-EF2A supports manual, automatic, and remote reset modes according to the installed control configuration.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the overload relay according to the applicable motor starter assembly documentation and local electrical requirements.\u003c\/p\u003e\n\u003cp\u003eVerify that the motor full-load current setting matches the protected motor nameplate data before energizing the circuit. Maintain proper separation between power conductors and low-level control wiring where required by the installation design.\u003c\/p\u003e\n\u003cp\u003eUse the specified terminal connection method and ensure conductors are properly secured. Grounding, shielding, and cable routing practices should follow the requirements of the surrounding control panel system to reduce electrical interference.\u003c\/p\u003e\n\u003cp\u003eConfirm phase sequence, auxiliary contact wiring, reset circuit connections, and trip indication operation during commissioning.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43787656200282,"sku":"193-EF2A","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/193-EF2A2.jpg?v=1785917438","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-193-ef2a-electronic-overload-relay","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}