Description
The Woodward 5453-277 is a specialized Triple Modular Redundant (TMR) power supply chassis designed for the Woodward MicroNet Digital Control system. In field deployments across critical turbomachinery and power generation skids, this chassis houses and interconnects redundant power supply modules to ensure continuous, fault-tolerant power distribution to core system components.
Technical Specifications
| Parameter | Value |
| Manufacturer | Woodward, Inc. |
| Product Series | MicroNet TMR Control Platform |
| Part Number (MPN) | 5453-277 |
| Module Type | TMR Power Supply Chassis / Backplane Enclosure |
| Redundancy Support | Accommodates dual redundant power supply modules with active load-sharing capability |
| System Compatibility | Woodward MicroNet TMR controller racks and kernel modules |
| Enclosure Protection | IP20 (intended exclusively for internal mounting within a protective industrial control cabinet) |
Supply Terms & Commercial Details
- Availability: Sourced through industrial automation surplus channels, specialized turbine control distributors, and legacy parts suppliers.
- Lead Time: In-stock hardware typically ships within 1 to 3 business days.
- Warranty: 12-month standard supplier replacement or repair warranty covering functional hardware defects.
- Condition: New Surplus, Factory Open Box, or Fully Tested Refurbished (verify specific packaging and test logs with your vendor prior to purchase).
- Pricing Note: Price subject to market conditions; contact us for a firm quote.
Engineering & Integration Guidance
When integrating or replacing the 5453-277 chassis within a MicroNet TMR panel architecture, observe the following parameters:
- Rack Power Safety: Completely de-energize the main facility power feeds and external distribution blocks before installing or servicing modules within the chassis to prevent electrical arcing or backplane damage.
- Redundant Module Configuration: Ensure that paired power supply modules installed in the chassis match input voltage ratings (such as low-voltage DC or AC/DC variants) and share operational loads evenly to prevent premature thermal stress.
- Cabinet Thermal Management: Maintain proper vertical clearance inside the control cabinet to support natural convection airflow around the power chassis, preventing localized overheating during continuous operation.
Frequently Asked Questions
What is the primary function of the Woodward 5453-277?
The 5453-277 serves as a dedicated power supply chassis for MicroNet TMR systems, housing redundant power modules to deliver reliable, uninterrupted power distribution to critical system components.
Does the chassis support hot-swapping of power modules?
While TMR architectures are designed for high availability, always consult the specific system manual and execute proper power isolation or local bypass steps before extracting power modules from an active rack.
What power supply variants fit into this chassis?
The chassis is engineered to accept standard MicroNet TMR power supply module options, including low-voltage DC and wide-range AC/DC configurations depending on plant infrastructure requirements.
