Product Overview

The Bently Nevada 3500/15 129478-01 is a legacy high voltage DC power input module. This module works with the High Voltage DC Power Supply. It provides DC power to the 3500 series rack system. The 3500/15 mounts in two half-height slots on the left rack side. You can install two power supplies for redundancy. This module is made in the U.S.A.

Technical Specifications

The 3500/15 129478-01 accepts an input voltage range of 88 to 140 Vdc. Full rack current draw is 2.5 A maximum. The module measures 120.7 mm x 25.4 mm x 114.3 mm. Its weight is only 0.34 kg.

Under-voltage conditions do not harm the power supply. The 3500/15 also protects against over-voltage issues. An over-voltage causes the fuse to open on the PIM. This prevents damage to your rack components. No minimum rack load is required for operation.

Front Panel Indicator

The 3500/15 129478-01 has one front panel LED:

• Supply OK LED: Indicates when the power supply is operating properly

Environmental Limits

The 3500/15 129478-01 operates in demanding industrial conditions:

• 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

Rack Space Requirements

The 3500/15 129478-01 uses two half-height slots on the left rack side. Each slot accommodates one power supply module. Both slots can hold a power supply at the same time. This configuration allows for redundant power supplies. Redundant supplies increase system reliability.

Installation Guidelines

Power down the 3500 rack before installing the 3500/15 129478-01. Insert the module into a half-height slot on the left side. Push firmly until it seats into the backplane. Secure the module with the front panel screws. Connect your 88-140 Vdc source to the input terminals. Observe correct polarity when wiring. For redundant operation, install a second 3500/15 129478-01 in the other slot. Power up the rack and check the Supply OK LED.

Packaging List

• One 3500/15 129478-01 power input module

• One terminal block connector

• Anti-static protective bag

Compliance and Certifications

The 3500/15 129478-01 meets multiple industry standards:

• FCC: Complies with part 15 of FCC Rules

• EMC: Follows EN 61000-6-2 (Immunity) and EN 61000-6-4 (Emissions)

• Electrical Safety: Meets EN 61010-1 under LV Directive 2014/35/EU

• RoHS: Complies with Directive 2011/65/EU

• Maritime: Certified by DNV GL and ABS for ships, offshore units, and high speed craft

Frequently Asked Questions (FAQ)

1. What is the input voltage range for the 3500/15 129478-01?
The 3500/15 129478-01 accepts 88 to 140 Vdc input voltage. This is a high voltage DC option.

2. Can I use two power supplies for redundancy?
Yes, both half-height slots can hold a power supply. Install two 3500/15 129478-01 modules for redundant power.

3. What happens if the input voltage is too high?
An over-voltage condition causes the fuse to open on the PIM. This protects your rack from damage.

4. Does the 3500/15 require a minimum rack load?
No, the 3500/15 129478-01 has no minimum rack load requirement. It works with any rack configuration.

5. Is this module approved for marine use?
Yes, the 3500/15 129478-01 has DNV GL and ABS maritime certifications. It is suitable for ships and offshore units.