Product Overview

• PN: 129478-01
• Brand: Bently Nevada (Baker Hughes)
• Series: 3500 Turbomachinery Protection TSI System
• Type: Legacy High Voltage DC Power Input Module (PIM)

• Function: Dedicated rear power input terminal accessory paired with 3500/15 high voltage DC power supply front card. It serves as external power wiring interface, introduces high voltage DC power source into the rack power unit, distributes converted stable voltage to rack backplane and all internal modules. Two sets of power input modules can be configured for redundant power supply, automatic switching upon single path failure to avoid protection system power outage.

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Core Features

• Half-height modular structure, fixed at the dedicated power wiring position of 3500/05 rack
• Built-in overcurrent, short-circuit and surge protection circuit to prevent external power abnormal damage to power supply card
• Standard terminal wiring design, clear wiring partition to avoid misconnection during field installation
• Supports hot replacement under dual redundant power configuration without cutting off the whole rack power
• PCB conformal coating treatment, resistant to damp, dust and electromagnetic interference inside control cabinets
• Strict one-to-one matching with HV DC power supply front module, no configuration mismatch after direct plug-in

• Belongs to obsolete legacy series, replaced by updated universal power input accessories in new projects

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Technical Specifications

• Input Power Type: High Voltage DC
• Operating Temperature: -40℃ ~ +85℃
• Storage Temperature: -40℃ ~ +85℃
• Humidity: 5%~95% non-condensing
• Net Weight: 1kg
• HS Code: 8538900000
• Certifications: CE, UL

• Product Status: OEM discontinued; brand new original sealed and fully inspected refurbished modules available

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Compatibility

• Matched Front Power Card: 3500/15 high voltage DC power supply module
• Applicable Chassis: All standard 3500/05 12-slot and 14-slot rack frames
• System Load: Supplies power to all 3500 series monitor, communication and rear I/O modules

• Incompatible Scope: Cannot be used with AC power or low voltage DC power input modules crosswise

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Application

• External power access wiring terminal for steam turbine, gas turbine and compressor 3500 monitoring cabinets adopting high voltage DC power supply mode
• Redundant power path configuration and cabinet power system maintenance upgrade for petrochemical and power plant units
• Spare replacement and renovation for old 3500 series TSI protection racks with legacy high voltage DC power architecture