{"product_id":"ur-4dh-ge-multilin-digital-i-o-module","title":"UR-4DH GE Multilin Digital I\/O Module","description":"\u003ch2\u003eGeneral Electric UR 4DH Digital I\/O Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for digital input\/output execution in UR Series Universal Relay frames, the \u003cstrong\u003eGeneral Electric UR 4DH\u003c\/strong\u003e (\u003cstrong\u003eUR 4DH\u003c\/strong\u003e digital I\/O module) provides direct physical contact processing for auxiliary control points and inter‑relay signaling. The module supports multiple digital output card types, including Form‑A, Form‑C, latching, fast Form‑C, and SSR variants.\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\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eUR-4DH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eGeneral Electric Multilin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eOntario, Canada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003enot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003eapprox. 6 in L, 7 in W, 1.5 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Temp\u003c\/th\u003e\n\u003ctd\u003enot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Consumption\u003c\/th\u003e\n\u003ctd\u003eUR backplane supplied (value not specified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCore Performance Indicators\u003c\/th\u003e\n\u003ctd\u003eDigital I\/O communications; multiple output card types; up to 96 inputs and 64 outputs (UR platform capability); EnerVista UR support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication Velocity Licenses\u003c\/h3\u003e\n\u003cp\u003eThe UR-4DH follows GE industrial control conventions for deterministic backplane communication. Digital input states and output commands propagate through fixed‑cycle UR bus timing, ensuring predictable state transitions under load. I\/O density scaling allows mixed card types without requiring firmware flash compatibility adjustments across UR relay families. Output cards with mechanical latching maintain stable interlocking behavior, while Form‑A cards support activation speeds under typical wet\/dry contact conditions.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the UR‑4DH be hot‑swapped in a UR chassis? A: No. Digital I\/O modules require the relay to be de‑energized before insertion or removal to maintain backplane signal integrity.\u003c\/p\u003e\n\u003cp\u003eQ: Does the UR‑4DH support isolated digital inputs? A: Yes. Certain card variants include isolated inputs with auto‑burnish functionality. Isolation type depends on the specific card installed.\u003c\/p\u003e\n\u003cp\u003eQ: Are Form‑A outputs suitable for fast protection schemes? A: Form‑A outputs provide standard activation speeds and are appropriate for typical protective applications. Fast Form‑C or SSR cards should be used when higher‑speed operation is required.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaintain separation between digital I\/O wiring and CT\/PT circuits to reduce noise coupling.\u003c\/li\u003e\n\u003cli\u003eUse shielded cabling for isolated inputs and terminate shields at a single point.\u003c\/li\u003e\n\u003cli\u003eVerify correct slot placement, as UR modules must match the original module type installed.\u003c\/li\u003e\n\u003cli\u003eApply uniform pressure across the module’s connector edge to ensure proper backplane seating.\u003c\/li\u003e\n\u003cli\u003eWhen wiring mechanical latching outputs, include arc‑suppression components for inductive loads.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":48167607894206,"sku":"UR4DH","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\/es\/products\/ur-4dh-ge-multilin-digital-i-o-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}