PHOENIX CONTACT QUINT-PS/1AC/24DC/10/CO Replacement Solution

Product Overview

PHOENIX CONTACT QUINT-PS/1AC/24DC/10/CO 2320911 Replacement & Upgrade Solution: Seamless Transition for Legacy Control Systems

The PHOENIX CONTACT QUINT-PS/1AC/24DC/10/CO (Order No. 2320911) is a high-performance 24 VDC / 10 A single-phase DIN rail power supply from the renowned QUINT Power series. Designed for demanding industrial environments, this unit delivers stable, regulated 24 VDC output with active power boost, selective fuse tripping, and SFB (Selective Fuse Breaking) technology — making it a preferred choice for PLC control panels, distributed I/O cabinets, and process automation systems worldwide.

For facilities running legacy 24 VDC power infrastructure — whether based on older QUINT-PS variants, TRIO Power units, or third-party DIN rail PSUs — this model provides a direct, drop-in upgrade path with minimal rewiring and zero firmware changes required.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful power supply migration in a live control cabinet rarely involves a single component. When replacing or upgrading to the QUINT-PS/1AC/24DC/10/CO 2320911, the following associated components are commonly addressed in the same retrofit scope:

For systems using PHOENIX CONTACT QUINT-PS/1AC/24DC/5 or QUINT-PS/3AC/24DC/10 variants, the wiring topology and terminal block assignments remain largely compatible, allowing engineers to reuse existing PHOENIX CONTACT UK 2.5 B terminal blocks and PT 2.5 feed-through terminals without re-labeling the entire cabinet. Where the original installation used a TRIO-PS/1AC/24DC/5 or TRIO-PS/1AC/24DC/10, the QUINT series upgrade delivers a meaningful improvement in output stability and diagnostic capability through its integrated DC OK relay contact, which can be wired directly into a spare digital input on the host PLC — such as a SIEMENS S7-300 DI module or an Allen-Bradley 1756-IB16 ControlLogix input card — to enable real-time power fault monitoring without additional relay hardware.

In cabinets where 24 VDC distribution is managed through PHOENIX CONTACT CLIPLINE or PTFIX distribution blocks, the QUINT-PS/1AC/24DC/10/CO integrates without modification. For applications requiring redundant power — common in safety-critical DCS nodes or high-availability SCADA panels — pairing this unit with a QUINT-DIODE/40AC/2X20/1X40 redundancy module ensures seamless load sharing and eliminates single-point-of-failure risk on the 24 VDC bus.

Where the legacy system included a MINI-PS or STEP-PS power supply in a space-constrained sub-panel, the 55 mm width of the QUINT-PS/1AC/24DC/10/CO allows installation in standard 6-slot or 8-slot DIN rail sections alongside PHOENIX CONTACT CB E4 circuit breakers and surge protection devices such as the TRABTECH PT 2X1-24DC-ST. This combination provides a fully coordinated, selective protection scheme that meets IEC 60364-4-43 requirements for industrial distribution boards.

For retrofit projects involving older MOELLER (Eaton) or SIEMENS SITOP PSU100S power supplies, the QUINT-PS/1AC/24DC/10/CO serves as a functional equivalent with superior transient response and a wider input voltage tolerance, reducing the risk of nuisance tripping during grid fluctuations common in heavy industrial environments.

Retrofit Guidance FAQ

Q: Can I reuse existing 24 VDC wiring when replacing my old DIN rail PSU?
A: Yes. The QUINT-PS/1AC/24DC/10/CO uses standard screw terminals accepting 0.2–6 mm² conductors. If your existing wiring uses 1.5 mm² or 2.5 mm² cables — the most common gauges in 24 VDC control circuits — no rewiring is required. Verify terminal torque spec (0.5–0.6 Nm) before commissioning.

Q: Does this unit require any programming or configuration changes in the PLC?
A: No firmware or program changes are needed. The 24 VDC output is hardware-regulated. If you choose to wire the DC OK relay contact to a PLC digital input for fault monitoring, a single rung addition in your ladder logic or function block diagram is sufficient — no I/O module replacement is required.

Q: What communication protocols does this power supply support?
A: The QUINT-PS/1AC/24DC/10/CO does not use fieldbus communication (no PROFIBUS, PROFINET, or EtherNet/IP interface). Status signaling is via a potential-free relay contact (DC OK). For network-integrated power monitoring, consider pairing with a PHOENIX CONTACT QUINT4-PS variant that supports IO-Link diagnostics.

Q: Will it fit in the same DIN rail slot as my existing PSU?
A: The unit is 55 mm wide on a standard 35 mm DIN rail. Most 10 A class DIN rail PSUs occupy 55–70 mm. If your existing unit is wider, you will gain rail space after replacement. Depth is 130 mm — verify clearance against cabinet door or cable duct.

Q: How do I handle the transition with minimal downtime?
A: Pre-stage the replacement unit on a bench, pre-wire output terminals, and verify output voltage before installation. During the swap window, de-energize the AC input only — downstream 24 VDC loads can remain connected. Total swap time for a trained technician is typically under 15 minutes.

Q: Is this unit compatible with ATEX Zone 2 installations?
A: Yes. The QUINT-PS/1AC/24DC/10/CO carries ATEX certification for Zone 2 (gas) hazardous area installations when installed in a suitable enclosure per IEC 60079-15 requirements.

Warranty Assurance

Every PHOENIX CONTACT QUINT-PS/1AC/24DC/10/CO 2320911 unit shipped by TOPNLMS is covered by a 12-Month Warranty from the date of delivery. Prior to dispatch, each unit undergoes output voltage verification, load regulation testing, and visual inspection to confirm it meets PHOENIX CONTACT factory specifications.

In the event of a confirmed defect within the warranty period, TOPNLMS provides direct replacement support with priority processing for industrial customers to minimize production impact. Our after-sales response target is within 24 business hours of fault notification.

All units are shipped with original or equivalent protective packaging, ESD-safe handling, and export documentation suitable for international customs clearance. Stock is held in Xiamen, China, with DHL Express, FedEx International Priority, and sea freight options available depending on urgency and order volume.

For bulk procurement, OEM replacement programs, or emergency stock reservations, contact our technical sales team directly.

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