Reliance Electric 45C920 Power Supply Module – Obsolete Drives Spare Part

Technical Dossier

Product Details And Specifications

Reliance Electric 45C920 Power Supply Module – Obsolete Drives Spare Part

When a power supply module fails inside a legacy Reliance Electric drive system, the consequences extend far beyond a single component. A full line upgrade — new drives, new PLCs, new engineering hours, new commissioning, and operator retraining — routinely runs into the hundreds of thousands, often millions, of dollars. The 45C920 is no longer in production. Finding a verified, functional unit on the open market is not a routine procurement task. DriveKNMS maintains sourced inventory of hard-to-find obsolete industrial components precisely for this scenario. Securing a spare now is not a discretionary purchase — it is asset protection.

RFQ support for obsolete parts: Send the model number, required quantity and destination so DriveKNMS can confirm sourcing options before quotation.

Technical Specifications

Note: Electrical parameters for this legacy module are not published here to prevent misapplication. Please contact our technical team to confirm compatibility with your specific system configuration before ordering.

Solving the Discontinued Hardware Crisis

Plant managers facing this situation are presented with a false choice: pay for an emergency full-system upgrade under time pressure, or halt production. A third option exists — sourcing a verified replacement module from a specialist supplier. This approach has been used successfully by maintenance teams to extend the operational life of legacy drive systems by 5 to 10 years, deferring capital expenditure until it can be planned, budgeted, and executed on the plant's own schedule.

Condition & Reliability Assurance

Obsolete components require a more rigorous inspection protocol than current-production parts. DriveKNMS applies a 5-step quality assurance process to every legacy module before it leaves our facility:

• Step 1 – Visual & Mechanical Inspection: Full external examination for physical damage, pin corrosion, connector wear, and housing integrity.
• Step 2 – Electrolytic Capacitor Assessment: Aging electrolytic capacitors are the primary failure mode in power supply modules stored for extended periods. Each unit is assessed for capacitor condition; units with suspect capacitors are reconditioned or rejected.
• Step 3 – Firmware & Configuration Verification: Where applicable, firmware version is confirmed against known-good references for the target system.
• Step 4 – Pin & Contact Corrosion Remediation: All connector pins are inspected and treated. Corroded contacts are a common cause of intermittent faults in legacy hardware and are addressed before dispatch review.
• Step 5 – Functional Power-On Test: The module is powered and tested under controlled conditions. Only units that pass all five steps are released for sale.

Key Features for System Maintenance

Q: Can you help identify other obsolete parts in my Reliance Electric system?
A: Yes. Provide your system model and a list of installed modules. Our technical team will cross-reference against our inventory and advise on sourcing strategy for your full spare parts list.