{"product_id":"193-ef1a-allen-bradley-overload-relay-new-original-stock","title":"193-EF1A Allen-Bradley Overload Relay | New \u0026 Original Stock","description":"\u003ch2\u003eAllen-Bradley 193-EF1A E1 Plus Electronic Overload Relay\u003c\/h2\u003e\n\u003cp\u003eConfigured for precise thermal overload tracking and phase-fault execution in motor control networks, the \u003cstrong\u003eAllen-Bradley 193-EF1A\u003c\/strong\u003e (\u003cstrong\u003e193-EF1A\u003c\/strong\u003e Electronic Overload Relay) provides direct physical\/electrical execution. This solid-state, microprocessor-based component measures operational current directly within the main power circuit, monitoring full-load current conditions ranging from 0.45 to 1.8 A. The device evaluates real-time current metrics to actuate integrated auxiliary contacts, executing a circuit interruption sequence across the motor starter assembly upon detection of phase loss, current imbalance, or thermal limits.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"1\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-row=\"1\"\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"2\"\u003eModel\u003c\/td\u003e\n\u003ctd data-row=\"2\"\u003e193-EF1A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"3\"\u003eBrand\u003c\/td\u003e\n\u003ctd data-row=\"3\"\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"4\"\u003eOrigin\u003c\/td\u003e\n\u003ctd data-row=\"4\"\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"5\"\u003eWeight\u003c\/td\u003e\n\u003ctd data-row=\"5\"\u003e0.25 kg (Nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"6\"\u003eDimensions\u003c\/td\u003e\n\u003ctd data-row=\"6\"\u003eFrame Size F1 configuration for integrated contactor mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"7\"\u003eOperating Temp\u003c\/td\u003e\n\u003ctd data-row=\"7\"\u003e-20 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"8\"\u003ePower Consumption\u003c\/td\u003e\n\u003ctd data-row=\"8\"\u003eLow-power solid-state sensing loop (powered via control circuit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"9\"\u003eCurrent Range (FLA)\u003c\/td\u003e\n\u003ctd data-row=\"9\"\u003e0.45 to 1.8 A adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"10\"\u003eVoltage Rating\u003c\/td\u003e\n\u003ctd data-row=\"10\"\u003eUp to 1000 VAC, 8 kV impulse voltage capability\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"11\"\u003eTrip Class Selection\u003c\/td\u003e\n\u003ctd data-row=\"11\"\u003eAdjustable 10, 15, 20, 30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"12\"\u003eAuxiliary Contacts\u003c\/td\u003e\n\u003ctd data-row=\"12\"\u003e1 N.O. and 1 N.C. (Trip-indicating)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"13\"\u003eProtection Vectors\u003c\/td\u003e\n\u003ctd data-row=\"13\"\u003eThermal overload, phase loss, current imbalance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"14\"\u003eReset Parameters\u003c\/td\u003e\n\u003ctd data-row=\"14\"\u003eSelectable Manual, Remote, or Automatic options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"15\"\u003eEnclosure Rating\u003c\/td\u003e\n\u003ctd data-row=\"15\"\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eProfinet \/ EtherNet\/IP Deterministic Networks and I\/O Density Scaling\u003c\/h3\u003e\n\u003cp\u003eThe motor protection parameters computed by the \u003cstrong\u003e193-EF1A\u003c\/strong\u003e interact with centralized control hubs through standard remote I\/O link configurations. By mapping the auxiliary contact trip and reset states to localized digital input modules, motor status variables scale accurately within Profinet \/ EtherNet\/IP deterministic networks. This integration architecture allows high-density distributed remote racks to stream instant trip diagnostics to supervisory controllers without reducing the backplane bus communication velocity metrics assigned to real-time process monitoring channels.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How is the physical trip class setting adjusted and validated on the 193-EF1A hardware?\u003c\/p\u003e\n\u003cp\u003eA: The hardware utilizes integrated DIP switch positions or dials located on the front faceplate to select among trip classes 10, 15, 20, or 30. Changes must be adjusted while control power is isolated to ensure the internal microprocessor reinitializes with the newly configured current-time curve parameters.\u003c\/p\u003e\n\u003cp\u003eQ: Can this overload relay operate independently without direct mechanical connection to a contactor?\u003c\/p\u003e\n\u003cp\u003eA: The 193-EF1A is structurally engineered as a direct-mount component for 100-C and 104-C series contactors. For standalone panel mounting, a separate terminal bracket accessory must be utilized to provide independent screw terminal connections for the main power conductors.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eContactor Direct Integration:\u003c\/strong\u003e Align the load-side pins of the compatible 100-C contactor with the input terminals of the relay. Insert the pins completely and tighten the mechanical screw terminals to ensure a low-resistance electrical connection capable of withstanding 8 kV transients.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuxiliary Control Loop Termination:\u003c\/strong\u003e Wire the N.C. trip-indicating contact (95-96) in series with the contactor coil control circuit. Connect the N.O. status contact (97-98) to the local PLC input terminal module for diagnostic tracking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor Separation Enforcements:\u003c\/strong\u003e Route low-voltage discrete status wiring through dedicated sections of the panel ducting, maintaining physical separation from the main three-phase motor lines to prevent high-frequency current induction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-Load Current Calibration:\u003c\/strong\u003e Rotate the front potentiometer dial to match the specific Full Load Amperes (FLA) value printed on the connected motor nameplate. Do not set the value higher than the actual motor ratings, as this defeats the thermal modeling algorithm of the internal microprocessor.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":43412727955546,"sku":"193-EF1A","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/153_252a39b1-0d3c-45ab-920b-bc62ae255fdf.jpg?v=1779677274","url":"https:\/\/www.spareoil.com\/products\/193-ef1a-allen-bradley-overload-relay-new-original-stock","provider":"SpareOil Automation","version":"1.0","type":"link"}