Phoenix Contact QUINT-PS/1AC/24DC/40 Power Supply – Obsolete QUINT POWER Spare Part

Technical Dossier

Product Details And Specifications

Phoenix Contact QUINT-PS/1AC/24DC/40 Power Supply – Obsolete QUINT POWER Spare Part

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

Technical Specifications

Solving the Discontinued Hardware Crisis

The QUINT-PS/1AC/24DC/40 was a cornerstone power supply in industrial control panels built throughout the 2000s and early 2010s. Its SFB (Selective Fuse Breaking) technology and active current limiting made it the preferred choice for powering 24 VDC bus systems in demanding environments — from automotive body shops to chemical processing facilities.

Phoenix Contact has since transitioned to the QUINT4 and TRIO POWER product lines. While these successors offer improved diagnostics and communication capabilities, they are not dimensionally or electrically identical to the original QUINT series. Retrofitting a modern unit into a panel designed around the QUINT-PS/1AC/24DC/40 requires DIN rail space recalculation, potential rewiring of the DC OK relay output, and in some cases, reconfiguration of downstream load monitoring logic.

How to extend your automation asset life by 5–10 years with critical spare parts:

Condition & Reliability Assurance

Sourcing obsolete power supplies from the secondary market carries real risk. DriveKNMS applies a 5-step QA protocol to every QUINT-PS/1AC/24DC/40 unit before dispatch review:

1. Electrolytic Capacitor Inspection: Capacitors are the primary failure mode in aged power supplies. Each unit is inspected for bulging, leakage, and ESR degradation. Units with suspect capacitors are recapped with equivalent-spec components before release.
2. Firmware & Hardware Revision Verification: The hardware revision label is documented and cross-referenced against the original Phoenix Contact production records to confirm authenticity and revision consistency.
3. Pin and Terminal Corrosion Check: All input/output terminals and DC OK relay contacts are inspected under magnification for oxidation, pitting, or mechanical damage. Corroded terminals are cleaned or the unit is rejected.
4. Full Load Burn-In Test: Each unit is powered at rated load for a minimum burn-in period to screen for latent failures before dispatch review.
5. Packaging Integrity: Units are shipped in anti-static foam-lined packaging with desiccant to prevent moisture ingress during transit.

Key Features for System Maintenance

• Drop-in replacement: Identical form factor and terminal layout to the original installed unit — no panel modification required.
• No reprogramming required: The DC OK relay output and SFB current limiting behavior are hardware-defined. Replacing the unit does not require any PLC or HMI configuration changes.
• Avoids engineering redesign costs: A direct replacement eliminates the need for a panel engineer to redesign the power distribution section, saving days of billable engineering time.
• Preserves system certification: In regulated industries (food & beverage, pharmaceutical, oil & gas), replacing a like-for-like component avoids triggering a full system revalidation that a design change would require.

Q: How do I know the unit is genuine and not counterfeit?
A: Every unit is inspected for Phoenix Contact OEM markings, label consistency, and PCB construction. We do not source from unverified brokers. Units with any indication of remarking or counterfeit construction are rejected and destroyed.

Q: Should I buy more than one unit?
A: For any facility with this model in active service, holding at least one spare is a minimum prudent position. Given that Phoenix Contact no longer manufactures this unit, secondary market availability will continue to decline. Facilities with multiple units in service should consider securing two to three spares now while RFQ-reviewed sourcing status remains available.