Woodward 5466-318 | TMR Kernel Power Supply CE CSA

• Model & Brand: 5466-318 | Woodward
• Series: MicroNet TMR Digital Control
• Part Type: TMR Kernel Power Supply Module
• Primary System: MicroNet TMR
• Physical Dimensions: Approx. 25.4 × 25.4 × 2.5 cm based on one current spare-parts shipping listing; verify against the actual hardware revision before freight quoting.
• Estimated Net Weight: Approx. 0.8–1.1 kg depending on packaging and measurement basis.
• Estimated Shipping Weight: Budget approximately 1.5–2.0 kg for protected ESD packaging and a rigid carton
• What’s in the Box: 5466-318 kernel power supply module; ESD shielding protection; protective packaging; mounting/retaining hardware only when explicitly included
• Front Indicator: Single LED for power-supply health.
• Installation Position: First module slot of each MicroNet TMR kernel.

Product Introduction

The 5466-318 is part of the power path that keeps one MicroNet TMR kernel alive. Woodward’s current MicroNet TMR manual states that each of the three kernel sections—A, B, and C—contains one kernel power-supply module. The 5466-318 receives 24 VDC from the MicroNet main power supply, regulates that input to 5 VDC for the remaining kernel section, and also provides a 5 VDC precharge voltage. Most importantly, Woodward specifies that 5466-318 must be used with the TMR040 CPU.

This is not a generic 24-to-5 VDC converter. The module belongs in a defined MicroNet TMR chassis position and participates in the kernel power architecture. Woodward specifies 24 VDC ±10% input, 5 VDC ±5% output, and 10 A maximum output current; the associated hardware health is monitored through the front-panel LED.In field maintenance, that exact CPU pairing and slot position matter (a 5466-1049 is specified for the later TMR5200 CPU instead).

Core Technical Specifications

Woodward’s current manual is the controlling technical reference for the 24 VDC input, 5 VDC ±5% output, 10 A maximum, TMR040 pairing, and kernel-slot requirements.

Woodward 5466-318

🚨 Global Compliance & Industry Certifications

Woodward’s MicroNet TMR documentation provides specific compliance conditions for this equipment family:

• CE Mark: Woodward states that units bearing the CE marking are covered by the EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU.
• CSA: Woodward identifies CSA-listed equipment for Class I, Division 2, Groups A, B, C, and D, T3A at +55 °C surrounding air temperature, or non-hazardous locations, for applicable marked units.
• UL/cUL: The MicroNet family includes North American hazardous-location compliance provisions, but the actual 5466-318 unit must carry the applicable identification for the installation to rely on that approval.
• ATEX / IECEx: The reviewed Woodward manual does not establish a standalone ATEX or IECEx certificate specifically for 5466-318.
• Marine / DNV: No 5466-318-specific DNV approval was established from the reviewed manufacturer record.
• Hazardous-area conditions: Woodward states that the equipment is suitable for Class I, Division 2, Groups A-D or non-hazardous locations only, with fixed-wiring, grounding, and installation conditions applying.

The Class I, Division 2 restriction is significant because it controls whether the equipment is suitable for locations where flammable gas or vapor may be present under abnormal conditions. Woodward also warns that component substitution can impair hazardous-location suitability.

Verify specific lot certifications with OEM.

🚨 Long-Term Storage & Asset Preservation Guide

Keep the 5466-318 inside its original ESD shielding protection whenever possible. Woodward’s MicroNet documentation explicitly calls for ESD precautions and instructs personnel to discharge static buildup to cabinet ground or use an ESD strap before touching MicroNet modules.Do not place the bare PCB-side contacts against ordinary shelving, plastic bags, or packing foam.

Control humidity and condensation. The module is normally installed inside a metal control cabinet, and long-term warehouse storage should be cleaner and drier than the field environment. A practical preservation target is below 60% RH, with no condensation cycles. Allow a sealed cold spare to reach room temperature before opening the ESD package; condensation on connectors is an avoidable failure mechanism.

Inspect the single health LED and connector surfaces periodically. Corrosion or contamination at the module interface can create symptoms that look like a power-converter failure. Record the hardware date code and revision, and perform a controlled bench test before putting a long-stored spare into a critical turbine-control system.

Do not apply a generic capacitor-reforming schedule without manufacturer guidance. The reviewed Woodward documentation does not specify a two-year reforming interval for the 5466-318. A controlled electrical test is the more defensible release criterion.

Physical Installation Prerequisites

The 5466-318 is an internal MicroNet TMR plug-in module, not a DIN-rail power supply. Woodward specifies that it must occupy the first module slot from the left in each kernel section, with the compatible kernel CPU installed immediately to its right.

Before installation:

• Confirm the chassis is a MicroNet TMR system using the TMR040 CPU.
• Verify that the replacement module is going into the correct A, B, or C kernel section.
• Remove all modules from that kernel before installing or removing the kernel power supply. Woodward explicitly requires this procedure.
• Confirm the incoming supply is 24 VDC ±10% before connecting the module.
• Inspect the backplane connector for bent, recessed, oxidized, or contaminated contacts.
• Use the chassis guides and retaining hardware; never force the card into the backplane.
• Ensure cabinet grounding is intact. Woodward states that grounding is required through the appropriate protective-earth connection.
• Observe the hazardous-location installation restrictions. Woodward specifically states not to remove or install the power supply while the circuit is live unless the area is known to be non-hazardous.
• Do not impose an arbitrary 50 mm top-and-bottom clearance on the module. Follow the MicroNet chassis ventilation arrangement and maintain unobstructed cabinet airflow.
• Check the kernel power budget before commissioning. A 10 A maximum output rating does not mean every installed MicroNet kernel should automatically be loaded to 10 A.

Buyer’s FAQ

Q1. What HS tariff code should be used for Woodward 5466-318?
A: Classification depends on the imported item’s legal description and the destination country’s tariff schedule. As an electrical power-conversion module, HS heading 8504.40 may be considered; other classifications can arise when customs treats the product as a dedicated control-system component. Use the final classification supplied or validated by the importer or customs broker rather than copying a supplier’s code without review.

Q2. Does Country of Origin follow the Woodward shipping location?
A: No. COO is tied to the applicable origin rules for the physical item, not simply the warehouse or export location. For an audit-ready transaction, record the manufacturer’s origin documentation, actual unit identification, commercial invoice, and Certificate of Origin when required.

Q3. How should I ship and insure a 5466-318?
A: Protect it in an ESD shielding bag, add connector protection and shock-absorbing material, immobilize the module inside a rigid carton, and use moisture protection appropriate to the route. Supplier records place the packed weight around the 1 kg range, but the actual carton should be weighed before booking freight.For critical turbine spares, insurance should cover the full declared replacement value and documented transit risk.

Q4. Does 5466-318 arrive with the latest firmware pre-loaded?
A: Firmware is not the primary issue for this module. Woodward identifies the 5466-318 as a TMR kernel power supply and specifies that it must be matched with the TMR040 CPU; the later 5466-1049 is specified for the TMR5200 CPU.Record the installed CPU type and perform the required power-system checks before commissioning.

Q5. Can I hot-swap 5466-318 while the MicroNet TMR is energized?
A: No, not as a routine live procedure. Woodward requires all modules within the affected kernel to be removed before installing or removing its kernel power-supply module. Its hazardous-location instructions also prohibit removal or installation while energized unless the area is known to be non-hazardous.This is a procedure-controlled maintenance task, not a general hot-plug operation.