{"product_id":"ge-ur4la-digital-input-output-module","title":"GE UR4LA Digital Input\/Output Module","description":"\u003cp\u003eConfigured for protective relay integration in Universal Relay (UR) platforms, the \u003cstrong\u003eGE Multilin UR4LA\u003c\/strong\u003e (\u003cstrong\u003eUR4LA\u003c\/strong\u003e Digital I\/O Module) provides direct physical\/electrical execution of isolated input sensing and high-speed discrete output control for power system protection.\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\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\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\u003eUR4LA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGE Multilin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eSystem dependent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eUR chassis modular form factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eIndustrial ambient range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eRelay backplane dependent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Capacity\u003c\/td\u003e\n\u003ctd\u003e8 Optically isolated inputs, 4 Form A outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Control and Network Characteristics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane bus communication velocity:\u003c\/strong\u003e The module utilizes the high-speed Universal Relay backplane bus to transmit I\/O status to the main processing unit. This velocity is necessary for maintaining deterministic execution of protection schemes, ensuring that sub-cycle response times are achieved during fault events.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfinet \/ EtherNet\/IP deterministic networks:\u003c\/strong\u003e When the host UR relay is configured for networked communication, the UR4LA module acts as a high-speed data source, translating discrete field inputs into status packets compatible with SCADA and industrial automation networks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI\/O density scaling:\u003c\/strong\u003e The 8-input\/4-output configuration provides localized signal consolidation, enabling high-density protection logic to be executed within a single relay chassis without requiring external auxiliary interposing relays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirmware flash compatibility:\u003c\/strong\u003e The hardware supports firmware updates via the UR platform interface, ensuring ongoing alignment with protection algorithm refinements and security standards required for critical utility infrastructure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the UR4LA support hot-swapping under normal load conditions?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the UR4LA is designed for hot-swap operations within the Universal Relay chassis. The backplane design ensures that insertion or extraction does not impact the operation of adjacent modules or the host relay's protective functions.\u003c\/p\u003e\n\u003cp\u003eQ: Are the digital inputs polarity-sensitive?\u003c\/p\u003e\n\u003cp\u003eA: The inputs are optically isolated to provide noise immunity. Ensure that the 48 Vdc (30–60 Vdc range) source is connected with the correct polarity as defined in the wiring diagram to ensure proper activation of the internal optical couplers.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Insert the module into the designated slot of the UR relay chassis. Use the integrated locking levers to ensure the backplane connector is fully seated, which is mandatory for reliable communication and I\/O signal continuity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding:\u003c\/strong\u003e The UR chassis provides the primary ground path. Ensure the relay chassis itself is bonded to the substation or cabinet earth bus using a low-impedance connection to protect against surge transients and electromagnetic interference (EMI).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Route digital input and output wiring through dedicated shielded signal paths. Keep these lines separated from high-voltage AC circuits and secondary CT\/PT lines by at least 150 mm to prevent inductive noise injection into the relay protection scheme.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":47981494304958,"sku":"UR4LA","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-07-06_10-09-43_277b611e-7a32-48f5-b845-253737bf6b23.png?v=1783419209","url":"https:\/\/www.autooiltech.com\/ar\/products\/ge-ur4la-digital-input-output-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}