{"product_id":"ge-multilin-ur-rlh-power-supply-module","title":"GE Multilin UR-RLH Power Supply Module","description":"\u003ch2\u003eGE Multilin UR RLH Power Supply Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for low‑voltage DC supply in Universal Relay (UR) systems, the \u003cstrong\u003eGE Multilin UR RLH\u003c\/strong\u003e (\u003cstrong\u003eUR‑RLH\u003c\/strong\u003e power‑supply module) provides regulated 24–48 VDC input conversion for relay electronics, dry‑contact inputs, and the integrated battery circuit. The module includes a form‑C critical‑failure relay that de‑energizes upon loss of control power or detection of a major self‑test fault.\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\u003e\u003cstrong\u003eUR‑RLH\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eGE Multilin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eNot specified (GE Multilin standard manufacturing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003eapprox. 2 lb 2 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003eapprox. 6.5 in L × 6.5 in W × 1.75 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Temp\u003c\/th\u003e\n\u003ctd\u003eNot specified (UR‑series ambient norms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Consumption\u003c\/th\u003e\n\u003ctd\u003eNot specified (low‑range DC supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVoltage Range\u003c\/th\u003e\n\u003ctd\u003e24–48 VDC nominal (LO‑range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput Capability\u003c\/th\u003e\n\u003ctd\u003ePowers relay electronics and dry‑contact inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSoftware Support\u003c\/th\u003e\n\u003ctd\u003eEnerVista UR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIsolation Voltage\u003c\/th\u003e\n\u003ctd\u003e2000 VAC (second‑generation modules)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery Function\u003c\/th\u003e\n\u003ctd\u003eIntegrated relay battery located within module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCritical Failure Relay\u003c\/th\u003e\n\u003ctd\u003eForm‑C device; energized only when boot and self‑tests pass\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 and Firmware Flash Compatibility\u003c\/h3\u003e\n\u003cp\u003eUR‑series power‑supply modules participate indirectly in backplane communication by stabilizing voltage rails used by CPU, CT\/VT, I\/O, and communication modules. The UR‑RLH’s LO‑range design maintains consistent rail behavior under varying DC input conditions, preventing timing drift in backplane bus arbitration. Firmware flash operations on CPU modules require stable rail voltage; therefore, the UR‑RLH’s regulated output ensures deterministic flash‑write cycles and prevents brownout‑related corruption during upgrades.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the UR‑RLH be hot‑swapped while the relay remains energized? A: No. Control power must be fully removed before extracting or inserting the module to avoid relay shutdown and critical‑failure relay transitions.\u003c\/p\u003e\n\u003cp\u003eQ: Does the UR‑RLH impose any backplane current limitations? A: The module supplies regulated DC rails; current draw is defined by installed modules. The UR‑RLH does not restrict backplane loading beyond its rated output capability.\u003c\/p\u003e\n\u003cp\u003eQ: Is the UR‑RLH interchangeable with UR‑RH or UR‑SH modules? A: It is a second‑generation LO‑range supply. UR‑SH modules are third‑generation replacements but mixing generations in redundant configurations is not recommended.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRemove all control power before handling the module.\u003c\/li\u003e\n\u003cli\u003eVerify proper seating of backplane connectors before re‑energizing.\u003c\/li\u003e\n\u003cli\u003eMaintain clean contact surfaces to ensure stable rail delivery.\u003c\/li\u003e\n\u003cli\u003eObserve ESD precautions when accessing relay internals.\u003c\/li\u003e\n\u003cli\u003eConfirm critical‑failure relay wiring is correct to avoid unintended trip indications.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":48170748870846,"sku":"URRLH","price":560.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/general-electric-urrhv-power-supply-module-2hkymouukln.png?v=1758881077","url":"https:\/\/www.autooiltech.com\/products\/ge-multilin-ur-rlh-power-supply-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}