Description
Product Overview
The NEBB NU 003NA is an Analog Power Supply Rack identified with NL 454625. It is a legacy industrial power-supply rack associated with NEBB control and automation equipment, with available product records referencing sensor and UMS applications as well as boiler-related systems.
Available identification data also lists 10V/24V and 24V/24V power configurations associated with the rack. Because the original technical documentation for this specific configuration is limited, the actual installed supply arrangement should be verified from the unit nameplate and system documentation before replacement.
The listed unit weight is approximately 24.7 kg, making this a substantial rack assembly rather than a small plug-in power module.
Key Features
🔹 Brand: NEBB
🔹 Model: NU 003NA
🔹 Part / Identification: NL 454625
🔹 Product Type: Analog Power Supply Rack
🔹 Application: Industrial control and power-supply rack
🔹 Associated Systems: Sensors / UMS / Boiler applications
🔹 Referenced Power Configurations: 10V/24V and 24V/24V
🔹 Approx. Weight: 24.7 kg
🔹 Product Category: Legacy industrial automation / marine control equipment
Technical Information
⚙️ Manufacturer: NEBB
⚙️ Model / MPN: NU 003NA
⚙️ Identification Number: NL 454625
⚙️ Type: Analog Power Supply Rack
⚙️ Rack Configuration: Rack 1 is referenced in available product information
⚙️ Power References: 10V/24V and 24V/24V configurations are listed
⚙️ Associated Function: Analog power supply and control-system power distribution
⚙️ Application: Sensors, UMS and boiler control equipment
⚙️ Weight: Approx. 24.700 kg
⚠️ The available information does not provide enough evidence to state the exact output current, number of channels, connector pinout, protection characteristics or complete electrical ratings. These parameters should be checked against the equipment nameplate and original system documentation.
Function
The NU 003NA serves as a rack-level power-supply assembly within a compatible NEBB control system.
Depending on the installed configuration, the rack can be involved in:
• Supplying power to control electronics
• Providing power for analog control-related circuits
• Supporting sensor-related equipment
• Distributing power between rack-mounted control components
• Supporting boiler and UMS control-system equipment
The rack should be considered a system-level power assembly, not simply a standalone 24V power supply.
Typical Applications
🏭 Industrial automation and control systems
🚢 Marine automation equipment
🔥 Boiler control systems
📡 Sensor and monitoring systems
⚙️ UMS-related control equipment
🔧 Legacy NEBB control-system maintenance
🛠️ Replacement of obsolete power-supply rack assemblies
Installation & Replacement Guide
Before installing a replacement NU 003NA, check the following:
- Confirm the model marking NU 003NA.
- Verify the identification NL 454625.
- Compare the complete rack construction with the existing unit.
- Record all incoming and outgoing wiring before removal.
- Verify the power configuration required by the existing control system.
- Check terminal blocks and connectors for corrosion, looseness or heat damage.
- Inspect internal wiring and mounting hardware.
- Confirm that connected sensor, UMS and boiler-control equipment matches the original configuration.
- Restore wiring according to the original terminal arrangement.
- Power up under controlled conditions and verify the downstream control equipment.
⚠️ Because this is a legacy power rack, do not assume that another NEBB rack with a similar appearance has the same electrical configuration.
Identification Checklist
For procurement, maintenance and spare-parts management, record all markings found on the physical unit:
NEBB NU 003NA
NL 454625
Analog Power Supply Rack
Any additional labels, revision numbers, terminal markings or configuration codes should also be photographed before ordering a replacement.
Maintenance Recommendations
🔧 Keep the rack clean and dry.
🔧 Inspect terminals for oxidation and loose connections.
🔧 Check wiring for heat discoloration or insulation damage.
🔧 Inspect cooling and ventilation around the rack.
🔧 Check mounting hardware because the assembly weighs approximately 24.7 kg.
🔧 Keep the complete model and identification number in the maintenance database.
🔧 For obsolete systems, maintaining a tested spare can reduce downtime during control-system repairs.
FAQ
Q: What is the NEBB NU 003NA?
A: It is an Analog Power Supply Rack used in compatible NEBB industrial control systems.
Q: What is NL 454625?
A: NL 454625 is an identification number associated with the NU 003NA rack.
Q: Is NU 003NA a PLC CPU?
A: No. It is identified as an Analog Power Supply Rack rather than a PLC processor.
Q: What voltage does it provide?
A: Available product information references 10V/24V and 24V/24V configurations, but the exact electrical arrangement should be verified from the physical unit before installation.
Q: What systems is it associated with?
A: Available records reference sensors, UMS and boiler applications.
Q: Is it a standalone power supply?
A: It is better treated as a rack-level power assembly designed for a particular control-system configuration.
Q: What is the approximate weight?
A: Available listings specify approximately 24.7 kg.
Q: Can another NEBB power rack replace it?
A: Not automatically. Model, identification number, electrical configuration, terminals and system compatibility should all be checked.
Related NEBB Identification / Equipment
• NU 003NA
• NL 454625
• NEBB Analog Power Supply Rack
• NEBB Sensor Control Equipment
• NEBB UMS Control Equipment
• NEBB Boiler Control Equipment
For a direct replacement, the complete NU 003NA / NL 454625 identification should take priority over general product-family similarity.
Product Condition
The referenced listing identifies this particular NEBB NU 003NA / NL 454625 unit as Used.
For replacement applications, verify the physical label, terminal arrangement and required power configuration before purchase and installation.
