Bently Nevada 3500/15-04-04-00 Power Supply – Legacy Low Voltage DC Module

Brand ABB

Model Bently 3500/15-04-04-00

Product Overview

The Bently Nevada 3500/15-04-04-00 is a legacy low voltage DC power supply module designed for the Bently Nevada 3500 Series Machinery Protection System. As a half-height module, the 3500/15-04-04-00 occupies a designated slot on the left side of the 3500 rack and converts a 20 to 30 Vdc input into the regulated voltages required by all other modules in the chassis. This 3500/15-04-04-00 power supply serves as the electrical backbone of the 3500 system, ensuring that vibration monitors, relay modules, communication processors, and interface cards receive stable, filtered DC power for continuous machinery protection operation.

The 3500/15-04-04-00 is part of Bently Nevada’s legacy power supply family, distinguished by its low voltage DC input range of 20 to 30 Vdc. This input specification makes the 3500/15-04-04-00 particularly suitable for installations where a 24 Vdc station battery or regulated DC power source is available, such as in power generation facilities, offshore platforms, and remote monitoring stations. The module’s suffix code 04-04-00 indicates that both the top and bottom power supply slots are configured for legacy low voltage DC operation, with agency approval option 00 denoting standard configuration without specific hazardous area certification.

When two 3500/15-04-04-00 modules are installed in a rack, the lower module acts as the primary supply while the upper module serves as a hot-standby backup. This redundant configuration allows either 3500/15-04-04-00 to be removed or inserted without disrupting rack operation, provided the remaining supply has sufficient capacity for the installed load. The front-panel Supply OK LED provides immediate visual confirmation of each module’s operating status, enabling maintenance personnel to identify failed units quickly.

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Description

Technical Specifications

Parameter Name	Parameter Value
Product Model	3500/15-04-04-00
Manufacturer	Bently Nevada / Baker Hughes
Product Series	3500 Machinery Protection System
Product Type	Legacy Low Voltage DC Power Supply Module
Part Number	114M5330-01
Input Voltage	20 to 30 Vdc
Input Frequency	N/A (DC Input)
Full Rack Current Draw	11.0 A maximum
Output Monitoring	Supply OK LED (Front Panel)
Rack Position	Left-side half-height slots (Top and Bottom)
Redundancy	Dual supply support (Primary/Bottom, Backup/Top)
Hot-Swap Capability	Yes (With second supply installed)
Dimensions (H x W x D)	120.7 x 50.8 x 251.5 mm
Weight	1.39 kg (3.06 lb)
Operating Temperature	-30°C to +65°C
Storage Temperature	-40°C to +85°C
Humidity	95%, Non-Condensing
Agency Approval	00 (Standard Configuration)
PIM Compatibility	Legacy Low Voltage DC PIM Only

Main Features and Advantages

Legacy Low Voltage DC Operation: The 3500/15-04-04-00 is specifically configured for 20 to 30 Vdc input power, making it compatible with installations using 24 Vdc station batteries or other low voltage DC sources. This input range aligns with common industrial DC power architectures and allows the 3500/15-04-04-00 to operate directly from battery-backed systems without requiring AC conversion equipment.

Dual Redundant Architecture: The 3500 rack accommodates two power supplies in its left-side slots, and the 3500/15-04-04-00 supports this redundant configuration. With two modules installed, the lower 3500/15-04-04-00 functions as the primary power source while the upper module operates as a hot-standby backup. If the primary module fails or is removed for maintenance, the backup 3500/15-04-04-00 automatically assumes the full rack load without interrupting machinery protection functions.

Hot-Swappable Maintenance Design: The 3500/15-04-04-00 can be removed and replaced while the rack remains powered and operational, provided a second functioning power supply is present. This hot-swap capability eliminates the need to shut down machinery monitoring during power supply replacement, which is particularly critical for continuously operating turbines, compressors, and other rotating equipment where protection system availability directly impacts operational safety.

Stable Regulated Output: The 3500/15-04-04-00 converts the raw 20 to 30 Vdc input into the regulated voltage rails required by 3500 series monitoring modules. This conversion includes filtering and regulation that protect downstream processing boards from input voltage fluctuations, ensuring that vibration, position, and speed measurements remain accurate and reliable across the module’s operating temperature range.