Phoenix Contact QUINT-PS/1AC/24DC/10 2866763 Replacement

Product Overview

Phoenix Contact QUINT-PS/1AC/24DC/10 2866763 Replacement: Seamless QUINT POWER Series Upgrade

The Phoenix Contact QUINT-PS/1AC/24DC/10 (Part No. 2866763) is a 240W, 24VDC, 10A single-phase DIN rail power supply from the industry-proven QUINT POWER series. Designed for demanding industrial control environments, this unit delivers regulated 24VDC output with active power boost, SFB (Selective Fuse Breaking) technology, and comprehensive diagnostic signaling — making it the preferred replacement and upgrade solution for aging or discontinued 24VDC DIN rail PSUs across PLC panels, DCS cabinets, and distributed I/O enclosures.

Whether you are retiring an older MINI-PS, TRIO POWER, or STEP POWER unit, or replacing a failed third-party 24VDC rail supply in a Siemens S7-300, Allen-Bradley MicroLogix, or Mitsubishi Q-series control cabinet, the QUINT-PS/1AC/24DC/10 2866763 integrates with minimal rewiring and no structural panel modification.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful migration from an aging 24VDC power distribution architecture to the QUINT-PS/1AC/24DC/10 2866763 typically involves coordinating several adjacent components within the same control cabinet or rack. During panel retrofits, engineers commonly replace or verify the following alongside the PSU:

The Phoenix Contact QUINT-PS/1AC/24DC/20 (2866776) is the 20A sibling in the same QUINT POWER family and is often installed in parallel or in adjacent slots when load expansion is required — both units share identical DIN rail footprint and terminal pitch, simplifying mixed-capacity panel layouts. For applications requiring redundant 24VDC supply, the Phoenix Contact QUINT-ORING/2X10/1X20 (2320898) ORing module integrates directly with the QUINT POWER series to provide automatic switchover without interrupting PLC or I/O bus power.

On the load side, Phoenix Contact CLIPLINE terminal blocks (UT 2.5 series) are the standard interface between the PSU output terminals and field wiring. When migrating from older screw-cage terminal strips, the pitch and cross-section compatibility of the UT 2.5 series eliminates the need to re-label or re-route existing 1.5mm² or 2.5mm² conductors. For installations that include Phoenix Contact TRIO POWER (2866417 or 2866418) units in adjacent slots, the QUINT-PS/1AC/24DC/10 can be installed in the same DIN rail segment without spacers, as both series conform to the same 35mm rail standard.

In Siemens S7-300 or S7-400 panel environments, the 24VDC rail from the QUINT-PS/1AC/24DC/10 typically feeds Siemens SM321 or SM322 digital I/O modules, CP343-1 Ethernet communication processors, and distributed ET 200S or ET 200M I/O stations. The QUINT unit’s DC OK relay contact can be wired directly into the CPU’s digital input for power-fail detection without additional signal conditioning. For Allen-Bradley ControlLogix or CompactLogix panels, the same PSU feeds 1756-IB16 or 1734-IB8 I/O modules and 1756-EN2T EtherNet/IP communication modules — the 24VDC nominal output is within the specified input range of all current Rockwell Automation I/O and communication hardware.

Where signal isolation is required between the PSU output and sensitive analog I/O — particularly in legacy DCS environments using Yokogawa CENTUM VP or Honeywell Experion field junction boxes — a Phoenix Contact MCR-SL-RPSSI-I signal isolator or equivalent galvanic isolator should be installed between the QUINT output bus and the analog loop power rail to prevent ground loop interference during the transition period.

For programming and commissioning during the retrofit, a Phoenix Contact IFS-USB-DATACABLE or equivalent USB-to-serial adapter is used to access the QUINT-PS diagnostic interface, while PLC program uploads and I/O configuration changes are handled via the existing Siemens PC Adapter USB A2 (6ES7972-0CB20-0XA0) or Rockwell 1784-U2DHP USB-to-DH+ cable depending on the controller platform.

Retrofit Guidance FAQ

Q: Can I replace my existing 24VDC 10A DIN rail PSU with the QUINT-PS/1AC/24DC/10 2866763 without rewiring the AC input?
A: Yes. The QUINT-PS/1AC/24DC/10 accepts universal AC input (85–264VAC, 47–63Hz) via standard L/N/PE screw terminals. If your existing PSU uses the same terminal arrangement, the AC input wiring can be transferred directly. Verify terminal torque specification (0.5–0.6 Nm) before energizing.

Q: Is the DC output terminal compatible with my existing 2.5mm² field wiring?
A: Yes. The output terminals accept 0.2–10mm² (AWG 24–8) conductors with a maximum torque of 0.8 Nm. No ferrule change is required for standard 1.5mm² or 2.5mm² panel wiring.

Q: Will the QUINT-PS/1AC/24DC/10 fit in the same DIN rail slot as my old PSU?
A: The unit is 55mm wide on a standard 35mm DIN rail. Most 10A-class DIN rail PSUs from Phoenix Contact, Siemens SITOP, Puls, and Meanwell occupy 55–65mm. Measure your existing slot width before installation. No additional mounting hardware is required.

Q: Does the QUINT-PS/1AC/24DC/10 support communication with the PLC for power monitoring?
A: The unit provides a potential-free relay signal contact (DC OK) rated at 250VAC/24VDC, 1A. This contact can be wired to any digital input on your PLC or DCS to trigger alarms or safe-state routines on power failure. No fieldbus or Ethernet interface is included in this model.

Q: What is the SFB (Selective Fuse Breaking) function and how does it affect my existing branch circuit protection?
A: SFB technology allows the QUINT-PS to deliver up to 200% of rated current (20A) for up to 5 seconds to selectively blow a downstream branch fuse without tripping the upstream supply. This eliminates the need for additional current-limiting devices on short branch circuits and simplifies panel protection coordination during retrofit.

Q: Can I use this PSU in a hazardous area (Zone 2) installation?
A: Yes. The QUINT-PS/1AC/24DC/10 2866763 carries ATEX Zone 2 certification (II 3 G Ex nA IIC T4 Gc), making it suitable for use in Zone 2 explosive atmospheres when installed in an appropriate enclosure per local regulations.

Warranty Assurance

Every Phoenix Contact QUINT-PS/1AC/24DC/10 (2866763) shipped by TOPNLMS is covered by a 12-month replacement warranty from the date of delivery. Prior to dispatch, each unit undergoes output voltage calibration verification, load regulation testing, and visual inspection for terminal and housing integrity. Units are shipped in original or equivalent anti-static packaging with individual serial number documentation.

In the event of a warranty claim, TOPNLMS provides a direct replacement unit — no repair loop, no extended RMA wait. Our standard response time for warranty cases is within 2 business days of claim submission. Replacement units are dispatched from our Xiamen warehouse via DHL Express or SF International, with tracking provided at time of shipment.

For procurement teams requiring documentation, we can provide a product test report, packing list, and commercial invoice with HS code 8504.40 for customs clearance. Bulk orders of 5 units or more qualify for priority allocation and dedicated account support.

Contact our technical sales team before ordering if you require cross-reference confirmation, datasheet review, or compatibility verification for your specific panel configuration.