129486-01 Bently Nevada Legacy High Voltage DC Power Supply — Specs & Stock

What Happens When Your Monitoring System Needs Stable High Voltage DC Power?

In demanding industrial environments, a reliable power supply is critical for continuous vibration monitoring and machinery protection. The 129486-01 from Bently Nevada is a Legacy High Voltage DC Power Supply Module engineered to deliver consistent performance under harsh conditions. With an input voltage range of 88 to 140 Vdc and a maximum full rack current draw of 2.5 A, this module ensures your Bently Nevada 3500/15 rack system operates without interruption.

Key Features & Technical Specs of the 129486-01

• Input Voltage: 88 to 140 Vdc
• Maximum Full Rack Current Draw: 2.5 A
• Operating Temperature: -30 °C to +65 °C
• Storage Temperature: -40 °C to +85 °C
• Humidity: 95%, non-condensing
• Dimensions: 120.7 mm x 50.8 mm x 251.5 mm (4.75 in x 2.0 in x 9.9 in)
• Weight: 1.39 kg (3.06 lb)
• Rack Space: Two half-height slots on the left side of the rack, supporting redundant power supplies

A standout feature of this module is its over-voltage protection: an over-voltage condition causes the fuse to open on the Power Input Module (PIM), safeguarding downstream components. This design prevents damage from voltage spikes, a common pain point in high-voltage DC systems.

Real-World Applications & Use Cases

Industries such as oil and gas, power generation, and chemical processing rely on the 129486-01 to power Bently Nevada 3500/15 racks for critical machinery monitoring. In a typical scenario, the module provides stable DC power to vibration transducers and proximity probes, enabling early fault detection. Its wide operating temperature range (-30 °C to +65 °C) makes it suitable for both indoor and outdoor installations, even in extreme climates.

Installation Guide & Setup

Installing the 129486-01 is straightforward: it occupies two half-height slots on the left side of the rack. For redundancy, you can populate both slots with power supplies. Ensure the input voltage is within 88 to 140 Vdc before connecting. No minimum rack load is required, simplifying initial setup. Always follow the manufacturer's manual for proper wiring and grounding to avoid electrical hazards.

Maintenance & Reliability Tips

To maximize the lifespan of your 129486-01, perform periodic visual inspections of the front panel Supply OK LED. This indicator confirms the power supply is operating properly. Keep the module within specified environmental limits: operating temperature -30 °C to +65 °C and humidity below 95% non-condensing. Regular cleaning of the rack's air filters and ensuring adequate ventilation will prevent overheating. For any issues, refer to the official Bently Nevada documentation or contact Petro Auto Tech for support.

Compatibility & Integration

The 129486-01 is designed specifically for the Bently Nevada 3500/15 rack system. It works seamlessly with the High Voltage DC Power Input Module (PIM) to deliver reliable power. The module supports redundant configurations, allowing two power supplies to operate simultaneously for increased system availability. It is compatible with all standard 3500/15 monitoring modules, including those for vibration, temperature, and speed measurement.

Troubleshooting & Common Issues

If the Supply OK LED is off, first verify the input voltage is within 88 to 140 Vdc. An under-voltage condition does not harm the supply or PIM, but an over-voltage will blow the fuse on the PIM. Check the fuse and replace it if necessary. If the module does not power up, inspect the rack connections and ensure the slots are properly seated. For persistent problems, consult the Bently Nevada 3500/15 manual or contact Petro Auto Tech for technical assistance.

FAQ about 129486-01

Q: What is the input voltage range for the 129486-01?

A: The input voltage range is 88 to 140 Vdc.

Q: Can I use two 129486-01 modules for redundancy?

A: Yes, the rack has two half-height slots that can each hold a power supply, allowing for redundant configurations.

Q: What does the Supply OK LED indicate?

A: The Supply OK LED illuminates when the power supply is operating properly.

Q: What happens if an over-voltage occurs?

A: An over-voltage condition causes the fuse to open on the Power Input Module (PIM), protecting the system.

Q: What are the physical dimensions of the 129486-01?

A: The dimensions are 120.7 mm x 50.8 mm x 251.5 mm (4.75 in x 2.0 in x 9.9 in).

Product Support & Availability

The Bently Nevada 129486-01 is in stock and ready to ship from Petro Auto Tech. As a trusted industrial automation parts supplier, Petro Auto Tech offers fast delivery and expert support. Please verify current lifecycle status and availability with Petro Auto Tech before ordering.