{"product_id":"bently-nevada-177989-01-pav-input-module-machinery-protection","title":"Bently Nevada 177989-01 PAV Input Module | Machinery Protection","description":"\u003ch3\u003eShopify Product Title:\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBently Nevada 177989-01 High Voltage DC Power Input Module | 3500\/15 Power Supply System | EMI Filtering | Redundancy Support\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eProduct Description:\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan\u003eBently Nevada 177989-01\u003c\/span\u003e is a \u003cspan\u003eHigh Voltage DC Power Input Module\u003c\/span\u003e designed for use in the \u003cspan\u003e3500\/15 High-Density Power Supply System\u003c\/span\u003e. Positioned at the rear of the 3500 rack, it serves as the interface for connecting high-voltage DC power, typically sourced from a plant’s station battery bank, to the machinery protection rack. This module is critical in ensuring continuous operation of the \u003cspan\u003e3500 series\u003c\/span\u003e system, particularly in environments where \u003cspan\u003e125 Vdc\u003c\/span\u003e is used as the primary power source.\u003c\/p\u003e\n\u003cp\u003eThe \u003cspan\u003e177989-01\u003c\/span\u003e is engineered to manage DC voltages within the \u003cspan\u003e88 to 140 Vdc\u003c\/span\u003e range, providing a \u003cspan\u003esafe\u003c\/span\u003e, \u003cspan\u003efused\u003c\/span\u003e, and \u003cspan\u003efiltered\u003c\/span\u003e connection for the primary power feed. It is an essential component for systems relying on \u003cspan\u003e125 Vdc nominal station battery systems\u003c\/span\u003e, ensuring that the 3500 rack remains operational even during \u003cspan\u003ecomplete AC power loss\u003c\/span\u003e (Blackouts).\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003eTechnical Specifications:\u003c\/h4\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\" width=\"NaN\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003e\u003cspan\u003eFeature\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel Number\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e177989-01\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh Voltage DC Power Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCompatible Supply\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003eBently Nevada 3500\/15 (High Voltage DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInput Voltage Range\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e88 to 140 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e110 Vdc or 125 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e2.3 Watts (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFusing\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003eInternal 3.15A, 250V (Non-user replaceable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTermination\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003eCompression screw terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWire Gauge Support\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e12 AWG (3.31 mm²) to 18 AWG (0.82 mm²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e-30°C to +65°C (-22°F to +150°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003eKey Features \u0026amp; Functions:\u003c\/h4\u003e\n\u003col class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSupport for High-Voltage DC\u003c\/span\u003e:\u003cbr\u003eWhile many industrial systems rely on \u003cspan\u003e24 Vdc\u003c\/span\u003e, larger power plants and high-voltage substations commonly use \u003cspan\u003e125 Vdc\u003c\/span\u003e for their protection circuits. The \u003cspan\u003e177989-01\u003c\/span\u003e module is specifically designed to handle these higher DC voltages safely without overheating or damaging sensitive equipment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eElectromagnetic Interference (EMI) Filtering\u003c\/span\u003e:\u003cbr\u003eThe module incorporates a built-in \u003cspan\u003eEMI filter\u003c\/span\u003e, essential for ensuring that any electrical noise or interference from the DC power source (e.g., from charging\/discharging battery banks) does not corrupt the signal. This guarantees that the \u003cspan\u003e3500 rack\u003c\/span\u003e receives \u003cspan\u003eclean, reliable power\u003c\/span\u003e, preventing \"ghost\" alarms from vibration monitoring systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRedundancy Capability\u003c\/span\u003e:\u003cbr\u003eDesigned for high-availability systems, the \u003cspan\u003e177989-01\u003c\/span\u003e module supports \u003cspan\u003eredundancy\u003c\/span\u003e by allowing two power input modules to be installed. This enables the \u003cspan\u003e3500 rack\u003c\/span\u003e to be powered by two independent DC sources. If one DC power source or battery bank fails, the system automatically switches to the secondary power input, ensuring continuous operation and protection of critical machinery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSafety and Hot-Swapping\u003c\/span\u003e:\u003cbr\u003eThe module’s design allows the front-mounted \u003cspan\u003e3500\/15 Power Supply\u003c\/span\u003e card to be replaced without disconnecting the field wiring. This feature ensures \u003cspan\u003elive maintenance\u003c\/span\u003e without exposing technicians to the high-voltage DC terminals at the rear of the cabinet. The wiring remains securely connected, preventing accidental contact with live components.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr\u003e\n\u003ch4\u003eInstallation Guidelines:\u003c\/h4\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePolarity Sensitivity\u003c\/span\u003e:\u003cbr\u003eThe \u003cspan\u003e177989-01\u003c\/span\u003e is DC-specific, so it’s crucial to correctly connect the \u003cspan\u003ePositive (+)\u003c\/span\u003e and \u003cspan\u003eNegative (-)\u003c\/span\u003e terminals. Reversing the polarity may cause damage to the internal protection fuses.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eGrounding\u003c\/span\u003e:\u003cbr\u003eTo ensure optimal operation of the surge suppression components, the \u003cspan\u003eearth ground terminal\u003c\/span\u003e on the \u003cspan\u003e177989-01\u003c\/span\u003e module should be properly connected to the \u003cspan\u003erack’s common safety ground\u003c\/span\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCable Selection\u003c\/span\u003e:\u003cbr\u003eFor best performance, especially in high-vibration environments, use \u003cspan\u003eshielded, twisted-pair cabling\u003c\/span\u003e for the DC power feed. This minimizes the risk of \u003cspan\u003eelectromagnetic interference (EMI)\u003c\/span\u003e affecting the system.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eApplication Context:\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan\u003eBently Nevada 177989-01\u003c\/span\u003e module is an ideal solution for power plants, substations, and other industrial facilities that rely on \u003cspan\u003e125 Vdc\u003c\/span\u003e as their power source for machinery protection. It ensures that the \u003cspan\u003e3500 series\u003c\/span\u003e machinery monitoring system can continue operating seamlessly, even during critical power interruptions such as \u003cspan\u003eAC power loss\u003c\/span\u003e or \u003cspan\u003eblackouts\u003c\/span\u003e.\u003c\/p\u003e\n\u003cp\u003eThe module is particularly suitable for industries where \u003cspan\u003ehigh voltage DC\u003c\/span\u003e power is required, such as power generation, petrochemical, and large-scale manufacturing plants.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":44118681813091,"sku":"177989-01","price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/2775\/3315\/files\/177989-01.jpg?v=1774860761","url":"https:\/\/precisemodule.com\/products\/bently-nevada-177989-01-pav-input-module-machinery-protection","provider":"Precise Module Ltd.","version":"1.0","type":"link"}