Product Overview

The Bently Nevada 3500/15 129486-01 is a legacy High Voltage DC Power Supply Module. It works with a dedicated High Voltage DC Power Input Module (PIM). This power supply accepts 88 to 140 Vdc input from industrial DC sources. You can install one or two units for redundant power configuration. Two half-height slots on the rack left side hold these supplies. The module operates reliably from -30°C to +65°C.

Technical Specifications

Input and Power Characteristics

• Input Voltage Range: Accepts 88 to 140 Vdc nominal.

• Full Rack Current Draw: Maximum draw is 2.5 A.

• Out of Range Protection: Under-voltage does not harm the supply or PIM. Over-voltage opens the fuse on the PIM.

• Minimum Loading: No minimum rack load is required for operation.

Output and Status Indication

• Front Panel LED: Supply OK LED indicates normal operation.

• Redundant Operation: Both half-height slots can hold power supplies simultaneously. This allows for true redundant power configuration.

Physical Dimensions

• Height: 120.7 mm (4.75 inches)

• Width: 50.8 mm (2.0 inches)

• Depth: 251.5 mm (9.9 inches)

• Weight: 1.39 kg (3.06 lb)

• Rack Space: Occupies two half-height slots on the left side of the rack.

Power Input Module (PIM)

• Compatibility: Requires the High Voltage DC Power Input Module.

• Location: Special half-height module directly behind the associated power supply.

• Function: Provides input connections and over-voltage protection via fuse.

Environmental Limits

The Bently Nevada 3500/15 129486-01 handles harsh industrial environments.

• Operating Temperature: -30°C to +65°C (-22°F to +150°F)

• Storage Temperature: -40°C to +85°C (-40°F to +185°F)

• Humidity: 95%, non-condensing

Legacy Status Notice

This 129486-01 is a legacy High Voltage DC Power Supply Module.

• It is designed for older 3500 monitoring systems.

• New installations should use current low voltage DC options.

• Replacement units are available for existing legacy racks.

• Verify compatibility with your 3500 rack version before ordering.

Installation Guide

Follow these steps to install the Bently Nevada 3500/15 129486-01.

1. Power down the entire 3500 rack system completely.

2. Locate the two half-height slots on the left side of the rack.

3. Slide the power supply module into either slot.

4. Install the High Voltage DC Power Input Module directly behind the supply.

5. Connect 88-140 Vdc input power to the PIM terminals.

6. For redundancy, install a second supply in the remaining slot.

7. Power on the system and verify the Supply OK LED is lit.

Redundancy Configuration

You can install two Bently Nevada 3500/15 129486-01 modules for high availability.

• Both supplies share the load under normal conditions.

• If one supply fails, the other continues to power the rack.

• Use two separate external high voltage DC sources for full redundancy.

• The system operates without interruption during supply replacement.

Package List

• 1 x Bently Nevada 3500/15 129486-01 Legacy High Voltage DC Power Supply Module

• 1 x Installation manual

• 1 x Connector kit for DC input wiring

Note: The High Voltage DC Power Input Module (PIM) is sold separately.

Common FAQs

Q1: What input voltage does the 3500/15 129486-01 require?
A: This Legacy High Voltage DC Power Supply Module accepts 88 to 140 Vdc input. Do not exceed 140 Vdc to avoid PIM fuse damage.

Q2: Is the 129486-01 still supported by Bently Nevada?
A: This is a legacy module for existing 3500 systems. Replacement units are available but new installations should use current power supply options.

Q3: Can I use two of these power supplies in one rack?
A: Yes, the rack has two half-height slots for power supplies. Installing two Bently Nevada 3500/15 129486-01 units provides full redundancy.

Q4: What is the maximum current draw for a full rack?
A: The maximum full rack current draw is 2.5 A at high voltage DC input. This is lower than low voltage DC options due to higher input voltage.

Q5: Does this power supply work with the standard PIM?
A: No, the 3500/15 129486-01 requires a dedicated High Voltage DC Power Input Module. Do not use it with low voltage DC PIMs.