Product Overview

The Bently Nevada 129486-01 is a high-integrity 3500/15 High-Voltage DC Power Supply Module engineered to provide regulated power to the entire 3500 Machinery Protection System rack. This half-height module accepts high-voltage DC inputs—typically from plant battery banks—and converts them into the precise, stable voltages required by vibration monitors, communication gateways, and relay cards. As the foundational energy source for the rack, the 129486-01 ensures that critical protection logic remains active even during primary AC power failures, maintaining the safety of turbines, compressors, and large-scale industrial rotating assets.

Technical Specifications

The 129486-01 operates within tight voltage tolerances to protect sensitive internal rack electronics from surges and fluctuations.

Engineering Advantages

• Optimized for High-Voltage DC Infrastructure: The 129486-01 specifically supports 125 VDC nominal inputs, allowing for direct integration with industrial uninterruptible power systems (UPS) and DC battery backups common in power generation and petrochemical facilities.

• Redundancy Capability: The 3500 rack design supports the installation of two 129486-01 modules simultaneously. This "Power Supply Redundancy" configuration ensures that if one supply fails, the second module immediately assumes the full load without interrupting machinery protection services.

• Internal Voltage Regulation: Advanced circuitry within the module filters out electrical noise and prevents voltage spikes from the plant supply from reaching the sensitive monitoring cards. This protection extends the operational lifespan of the entire 3500 system.

• Rapid Maintenance Design: The 129486-01 features a front-panel LED indicator that provides immediate visual confirmation of supply status. Its slide-in rack design allows for quick replacement during scheduled outages, minimizing downtime for the monitoring infrastructure.

FAQs

Q: Is the 129486-01 supplied as 100% Brand New?

A: Yes. We supply only 100% Brand New and Original Bently Nevada hardware in original factory packing. Every unit includes a 12-month factory warranty to ensure system integrity.

Q: Can I mix this High-Voltage DC supply with an AC supply in the same rack?

A: Yes. The 3500/15 system allows for "Mixed Redundancy." You can install one 129486-01 (DC) and one AC power supply in the same rack to provide protection against different types of power source failures.

Q: What is the typical lead time for this part?

A: Due to the critical nature of power supply components and factory testing requirements, the estimated lead time is 8 to 10 weeks. We recommend maintaining a spare 129486-01 on-site to avoid extended protection gaps.

Q: Does this module require a separate I/O module?

A: Yes. The 129486-01 front-side module must be paired with the appropriate 3500/15 Power Input Module (PIM) installed in the rear of the rack to facilitate physical wiring connections.