Phoenix Contact QUINT-PS/1AC/24VDC/10 Spare QUINT Automation: Spare Parts Replacement & Industrial Downtime Risk Control
The Phoenix Contact QUINT-PS/1AC/24VDC/10 (Part No. 2866763) is a single-phase 24 VDC, 10 A DIN rail power supply from the renowned QUINT Series — one of the most widely deployed industrial power supply families in global automation and process control environments. Designed for demanding 24 VDC load circuits in control cabinets, this unit delivers regulated, stable DC power to PLCs, I/O modules, relay banks, field instruments, and communication gateways. When this power supply fails or degrades, the downstream impact is immediate: loss of control voltage, I/O dropout, PLC faults, and unplanned production stoppages.
At SMARTNEXMSK, we supply original, tested QUINT-PS/1AC/24VDC/10 units sourced from authorized channels, fully inspected before dispatch, and backed by a 12-month warranty. Whether you are executing a planned maintenance swap, responding to an emergency fault, or building a strategic spare parts inventory, this unit ships promptly to minimize your downtime exposure.
Spare Maintenance Table
| Parameter | Specification |
|---|---|
| Part Number | 2866763 |
| SKU | QUINT-PS/1AC/24VDC/10 |
| Brand | PHOENIX CONTACT |
| Series | QUINT |
| Input Voltage | 85–264 VAC, 1-phase (universal input) |
| Output Voltage | 24 VDC (adjustable 18–29.5 VDC) |
| Output Current | 10 A continuous |
| Output Power | 240 W |
| Mounting | DIN rail (EN 60715 TH35) |
| Protection Class | IP20 |
| Operating Temperature | -25 °C to +70 °C |
| Approvals | UL, CE, ATEX (Zone 2), GL, DNV |
| Country of Origin | Germany |
| Compatibility | QUINT Series, ILC, RFC, AXC PLC systems; universal 24 VDC control circuits |
| Maintenance Recommendation | Replace every 7–10 years or upon output ripple deviation >5%, thermal shutdown events, or capacitor aging indicators |
| Warranty | 12 Months — tested and verified before shipment |
Maintenance Planning for Continuous Operation
When a maintenance or procurement engineer schedules replacement of the QUINT-PS/1AC/24VDC/10, the power supply is rarely the only component requiring attention. A thorough control cabinet inspection during the same maintenance window significantly reduces the risk of repeat failures and secondary faults.
Begin with the input side: verify the upstream circuit breaker or miniature circuit breaker (MCB) — such as a Phoenix Contact TMC 2 M-B or equivalent — is rated correctly for the inrush current of the QUINT unit. Inspect the AC terminal blocks (e.g., Phoenix Contact ST 2.5 or PTFIX series) for signs of thermal discoloration, loose ferrules, or oxidized contacts, as poor terminations are a leading cause of premature PSU failure.
On the DC output side, check the 24 VDC bus terminal blocks and distribution fuse terminals. Phoenix Contact PTFIX 6/18X2,5 distribution blocks or ST-QUATTRO fused terminal blocks are commonly found in the same cabinet. Inspect each fuse holder and replace any slow-blow fuses showing signs of thermal stress. If the cabinet uses a QUINT-DIODE/40AC/2X20/1X40 redundancy module for dual-PSU configurations, verify its output diodes and load-sharing behavior while the primary supply is offline.
Inspect all 24 VDC relay modules in the same circuit — Phoenix Contact PLC-RSC or REL-MR series relay modules share the same 24 VDC rail and can exhibit coil degradation that increases load on the power supply. Similarly, check any signal conditioners or signal isolators (e.g., Phoenix Contact MCR-SL series) powered from the same bus, as these are sensitive to voltage ripple caused by a failing PSU.
For systems integrating Axioline F or Inline I/O modules (e.g., AXL F DI8/1 DO8/1 or IB IL 24 DI 16), confirm that the I/O supply voltage is within tolerance after the PSU swap. Communication modules such as the FL SWITCH 1008 managed Ethernet switch or RAD-ISM-900 wireless modules should also be powered up and tested for link stability post-replacement. Finally, if the cabinet includes a QUINT-UPS/24DC/24DC/20 uninterruptible power supply module, verify its battery charge state and DC/DC converter output after the primary PSU is restored.
Site Replacement Workflow
Step 1 — Isolation & Safety: De-energize the cabinet via the upstream MCB. Lock out / tag out (LOTO) per site procedure. Confirm 0 VDC on the output bus with a calibrated multimeter before proceeding.
Step 2 — Documentation: Photograph the existing wiring, terminal assignments, and DIN rail position of the QUINT-PS/1AC/24VDC/10 before removal. Note the output voltage trim setting on the adjustment potentiometer.
Step 3 — Removal: Disconnect AC input terminals (L, N, PE) and DC output terminals (+24V, 0V). Release the DIN rail locking tab and slide the unit off the rail. Retain the original unit for failure analysis if required.
Step 4 — Installation: Clip the replacement QUINT-PS/1AC/24VDC/10 onto the DIN rail. Reconnect terminals per the documented wiring. Set the output voltage trim to match the original setting (typically 24.0 VDC nominal).
Step 5 — Commissioning: Re-energize via the MCB. Measure output voltage and ripple. Confirm all downstream PLC racks, I/O modules, relay modules, and communication devices power up correctly. Log the replacement date and unit serial number in the maintenance record.
This workflow is compatible with legacy QUINT-PS installations and supports direct form-fit-function replacement without PLC program changes or bus reconfiguration, minimizing total downtime to under 30 minutes for a prepared maintenance team.
Spare Parts Support FAQ
Q1: Is this an original Phoenix Contact QUINT-PS/1AC/24VDC/10 or a compatible replacement?
This is an original Phoenix Contact unit (Part No. 2866763), not a third-party compatible. Each unit is sourced from authorized supply channels, individually tested for output voltage, ripple, and protection function before shipment, and supplied with a 12-month warranty covering manufacturing defects and functional failures.
Q2: How do I verify compatibility with my existing QUINT Series installation?
The QUINT-PS/1AC/24VDC/10 is a direct replacement for any QUINT-PS unit with the same input (1AC, 85–264 VAC) and output (24 VDC, 10 A) ratings. Confirm your existing unit’s part number label matches 2866763 or cross-reference via the Phoenix Contact product selector. The unit is also compatible as a drop-in replacement in cabinets using QUINT redundancy modules, provided the load does not exceed 10 A per supply.
Q3: What is your lead time and how is the unit prepared for shipment?
In-stock units ship within 1–3 business days. Each unit undergoes pre-shipment functional testing: output voltage verification, load regulation check, and protection circuit test. Units are packed in anti-static, shock-protected packaging suitable for international freight. Expedited shipping is available for emergency maintenance situations — contact us directly for urgent requirements.
Q4: What spare parts inventory strategy do you recommend for QUINT Series power supplies?
For facilities running 10 or more QUINT-PS units, we recommend maintaining at least one cold-standby spare per cabinet type. Given the 7–10 year typical service life of QUINT power supplies, a proactive replacement cycle aligned with scheduled shutdowns is more cost-effective than reactive emergency procurement. SMARTNEXMSK offers volume pricing and long-term supply agreements to support multi-site maintenance programs.
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