Description
Key Technical Specifications
| Parameter | Specification / Value |
| Manufacturer | Emerson Automation Solutions (formerly Westinghouse) |
| Part Number | 5X00489G01 |
| Module Type | Baseplate Power Distribution & Monitoring Assembly |
| Primary Voltage Input | Nominal 24 V DC (Dual Primary and Secondary Feeds) |
| Current Capacity | Up to 30 A continuous across backplane distribution bus |
| Redundancy Scheme | Diode-ORed power supply auctioneering with fault sensing |
| Protection | Field-replaceable fast-acting inline fuses per sub-branch |
| Diagnostics | Voltage sensing relays, local status LEDs, system alarm contacts |
| Operating Temperature | 0°C to +60°C (32°F to 140°F) |
| Mounting Format | Ovation cabinet rail/baseplate subrack mounting |
| Certifications | CE Mark, UL Industrial Control Equipment, CSA Standards |
Product Introduction & Supply Chain Strategy
The Emerson Westinghouse 5X00489G01 is a specialized power distribution module engineered for the Ovation Distributed Control System (DCS). It regulates, monitors, and routes dual 24 V DC primary power feeds across controller subracks and local I/O baseplates, ensuring clean, continuous power to critical processing and communications electronics.
Maintaining the 5X00489G01 as a New Surplus spare is a key strategy for mitigating total cost of ownership (TCO) and avoiding unplanned plant outages. Power distribution modules endure constant thermal stress and high current throughput, making used or refurbished alternatives prone to sudden power rail collapse and elevated contact resistance. Procuring genuine New Surplus inventory ensures zero heat damage, uncompromised diode auctioneering components, and immediate backplane restoration without waiting on long OEM factory lead times.

5X00489G01

5X00489G01
Installation & Configuration Guide
- Stage 1: Pre-Installation (Prep & Safety)
- Perform a complete Lock-Out/Tag-Out (LOTO) on both primary A and secondary B 24 V DC power feeds supplying the cabinet branch.
- Strap on a grounded ESD wrist strap before handling the replacement 5X00489G01 module assembly.
- Document terminal wiring layouts and fuse ratings, and take a high-resolution reference photo of all incoming power connections.
- Stage 2: Removal
- Disconnect the heavy-gauge 24 V DC wiring harnesses from the terminal strips using an insulated screwdriver.
- Loosen the retaining hardware or unlatch the mounting clips securing the 5X00489G01 to the cabinet backplate.
- Carefully remove the module from the enclosure, avoiding contact with adjacent live backplane buses.
- Stage 3: Installation (Clone & Seat)
- Verify that all onboard fuses match the amperage specifications of the original module.
- Mount the 5X00489G01 firmly to the cabinet DIN/mounting assembly and torque securing screws to spec.
- Reconnect the primary and secondary DC power supply leads, verifying correct polarity on all terminal block points.
- Stage 4: Power-On & Testing
- Re-energize the main 24 V DC supply rails one at a time to test the diode-ORing auctioneering circuit.
- Verify that the power status LEDs illuminate solid green for both power channels.
- Measure voltage drops across output terminals using a calibrated digital multimeter to ensure clean, balanced power distribution to the subrack.
Firmware/Software Versions & Upgrade Notes
- Recommended Firmware: Hardware-based power distribution board; fully transparent to all Ovation System Software Releases (Release 1.8 through Release 3.8+).
- Compatibility Restrictions: Ensure bus bar terminal configurations and current limits align with the target Ovation cabinet series. Do not mix 5X00489G01 power distribution assemblies with non-auctioneered legacy power baseplates.
- Swap Warning: Never disconnect or reconnect heavy DC input leads while power sources are energized. Arcing under load can damage terminal contacts and induce voltage transients that risk tripping nearby Ovation controllers.
Frequently Asked Questions (FAQ)
Q: Is this 5X00489G01 power distribution module brand new or pulled from an active plant? A: This module is 100% New Surplus / Original New stock. It has never been installed in a running plant, pulled from a decommissioned panel, or repaired. It comes in factory packaging and passes full quality verification testing before shipment.
Q: Why shouldn’t I buy a cheaper refurbished power distribution module? A: Power modules handle continuous high currents, causing heavy thermal cycling in solder joints, terminal blocks, and auctioneering diodes. Refurbished power parts carry hidden thermal stress that can fail unexpectedly under peak load, leading to a total cabinet power outage. Purchasing New Surplus guarantees factory-grade reliability and long operational lifespan.
Q: Can I replace the 5X00489G01 module while the rest of the cabinet is energized? A: While Ovation systems support dual-redundant power paths, physically replacing the distribution board requires de-energizing the specific DC branch connected to the board. Always isolate incoming primary and secondary 24 V DC feeds before removing terminal connections.
Q: Does the 5X00489G01 require any software setup or driver installation? A: No. The 5X00489G01 is a pure hardware power routing and monitoring assembly. It functions hardware-autonomously and does not require software configuration, IP setup, or firmware downloads from the Ovation Developer Studio.
Q: What warranty coverage applies to this New Surplus part? A: We provide a 1-Year replacement warranty on the 5X00489G01 assembly. If any hardware defect or power rail failure occurs under standard operating conditions within 12 months, we replace the unit directly from our warehouse stock.

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