Description
Product Overview
Power quality in an automation cabinet affects more than whether a controller powers up. Voltage dips, transient loads, and short-circuit events on a 24 V DC distribution bus can interrupt PLC operation, reset field instruments, or disable communication equipment. The Phoenix Contact QUINT-PS/1AC/24DC/10 is a primary-switched industrial power supply designed to convert single-phase AC input into regulated 24 V DC power. Rated at 10 A and 240 W, it belongs to the QUINT POWER family and is intended for industrial control cabinets supplying PLCs, remote I/O, sensors, relays, transmitters, and other compatible DC loads.
A key feature is POWER BOOST, which provides up to 15 A under the manufacturer’s specified operating conditions. Selective Fuse Breaking (SFB) technology can deliver a short-duration current pulse to trip suitable downstream circuit breakers rapidly, helping isolate a fault without unnecessarily shutting down every device on the supply bus. The output voltage is adjustable from 18 V DC to 29.5 V DC, although operation above 24 V may restrict the available constant output capacity. Typical efficiency is specified at 93.2% at 230 V AC. These capabilities are useful in distributed automation cabinets where startup current and selective fault isolation matter.
For maintenance and procurement, the Phoenix Contact QUINT-PS/1AC/24DC/10 should be evaluated against the actual load profile, upstream protection, and downstream circuit-breaker characteristics. Its rated 10 A output is not a substitute for a load calculation that includes inrush current, temperature-related derating, and future expansion. The unit uses screw terminals and DIN-rail mounting, with a metal housing and IP20 protection. It is therefore intended for installation inside an appropriate enclosure, not direct exposure to water or conductive contamination.
The original model is catalog number 2866763. Phoenix Contact identifies QUINT4-PS/1AC/24DC/10, catalog number 2904601, as the item to use for new projects. Although both provide a 24 V DC, 10 A output, treat the newer unit as a replacement candidate rather than an automatic drop-in substitute. Confirm dimensions, terminal arrangement, monitoring signals, wiring, and approval requirements before changing the installed design.
Product Introduction (Non-Templated)
When a PLC cabinet experiences transient loads, the power supply must handle the demand without compromising the rest of the 24 V DC bus. The Phoenix Contact QUINT-PS/1AC/24DC/10 delivers 24 V DC at 10 A, with 240 W nominal output power and a 15 A POWER BOOST capability under specified conditions.
For a legacy control-panel repair, check the 2866763 catalog number and existing wiring before ordering. The newer QUINT4-PS/1AC/24DC/10 may suit a replacement project, but mechanical and electrical compatibility must be verified first.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Phoenix Contact |
| Model | QUINT-PS/1AC/24DC/10 |
| Order Number | 2866763 |
| Product Family | QUINT POWER |
| Product Type | Primary-switched industrial power supply |
| Nominal Input Voltage | 100–240 V AC |
| Permitted AC Input Range | 85–264 V AC |
| Input Frequency | 45–65 Hz |
| Nominal Output Voltage | 24 V DC |
| Output Voltage Adjustment | 18–29.5 V DC |
| Rated Output Current | 10 A |
| Nominal Output Power | 240 W |
| POWER BOOST | 15 A under specified operating conditions |
| SFB Technology | Selective Fuse Breaking; up to 60 A for 12 ms under specified conditions |
| Typical Efficiency | 93.2% at 230 V AC |
| Residual Ripple | Less than 50 mV peak-to-peak at nominal conditions |
| Output Regulation | Less than 1% static deviation for a 10–90% load change |
| Mounting | DIN rail, NS 35 |
| Connection Type | Screw terminals |
| Dimensions | 60 × 130 × 125 mm (W × H × D) |
| Protection Rating | IP20 |
| Operating Temperature | −25°C to +70°C; derating above +60°C |
| Housing | Metal |
| Parallel Operation | Supported, subject to manufacturer requirements |
| Product Condition | Verify actual stock condition and testing status |
Source: Phoenix Contact technical data for catalog number 2866763.
QUINT-PS1AC24DC10
Related Products
The following models serve as potential alternatives or complementary components. Confirm electrical, mechanical, and application requirements before substituting one model for another.
- QUINT-PS/1AC/24DC/10/CO — 2320911: A version with protective coating intended for more demanding environmental conditions. It retains the 24 V DC, 10 A output class, but its coating and environmental specifications differ from the standard unit.
- QUINT4-PS/1AC/24DC/10 — 2904601: The newer-generation, single-phase 24 V DC, 10 A power supply identified by Phoenix Contact for new projects. Evaluate it as a replacement candidate after checking the existing cabinet and wiring.
- QUINT4-PS/1AC/24DC/10/+ — 2904616: A newer-generation 10 A variant with an integrated decoupling MOSFET. This can be relevant where redundancy or decoupled power distribution is required; confirm the precise application requirements.
- QUINT4-PS/1AC/24DC/20 — 2904602: A 24 V DC, 20 A power supply for cabinets with greater continuous current demand. Check input protection, wiring capacity, thermal loading, and available panel space before upsizing.
- QUINT4-PS/1AC/24DC/40 — 2904603: A 40 A model for substantially larger DC loads. It is not a direct replacement for the 10 A unit without a broader redesign of the power-distribution system.
- /3AC/24DC/10 — 2904621: A three-phase-input, 24 V DC, 10 A model. Consider it where three-phase input is available and suitable; its input arrangement differs from the single-phase original.
- /3AC/24DC/20 — 2904622: A three-phase, 24 V DC, 20 A supply for higher-load control cabinets. It changes both input requirements and output capacity, so assess it as a system-level alternative.
- QUINT-PS/1AC/24DC/5/CO — 2320908: A coated 24 V DC, 5 A model for lower-current applications. Its lower output rating makes it unsuitable where the original system requires the full 10 A capacity
Frequently Asked Questions (FAQ)
1. Is the Phoenix Contact QUINT-PS/1AC/24DC/10 compatible with my PLC?
It can supply 24 V DC power to compatible PLCs, I/O modules, sensors, and other control devices, provided the load’s voltage and current requirements are met. The power supply does not determine the PLC’s communication protocol or programming compatibility.
Before connecting it, check the PLC manufacturer’s supply specifications, total continuous load, startup current, grounding arrangement, and required protective devices.
2. Can I replace model 2866763 with the newer /1AC/24DC/10?
Potentially, but do not assume a direct drop-in replacement.
Compare these points before installation:
- DIN-rail dimensions and available cabinet clearance.
- Terminal positions and conductor requirements.
- Input voltage and protective-device requirements.
- DC OK and other monitoring signal arrangements.
- Output capacity, load behavior, and applicable approvals.
Phoenix Contact identifies catalog number 2904601 as the newer product for new projects. The replacement still needs to be checked against the existing installation.
3. Can the QUINT-PS/1AC/24DC/10 deliver 15 A continuously?
The POWER BOOST rating is 15 A under the manufacturer’s specified operating conditions, not an unrestricted 15 A rating for every ambient temperature and installation.
The nominal continuous output rating is 10 A at 24 V DC, equivalent to 240 W. When planning for 15 A, verify the permitted boost duration or operating conditions, ambient temperature, input voltage, and load profile in the product documentation. Do not size a continuously loaded cabinet around the boost rating alone.
4. What does SFB technology do, and why does it matter in a PLC cabinet?
Selective Fuse Breaking provides a short-duration high-current output to trip suitable downstream circuit breakers quickly when a fault occurs. The manufacturer specifies up to 60 A for 12 ms under the stated conditions.
In a distributed control cabinet, rapid fault isolation can help prevent a short circuit on one branch from unnecessarily interrupting healthy branches. Actual selectivity depends on the selected breakers, wiring impedance, fault current, and circuit design; SFB does not guarantee that every downstream protective device will trip selectively.
5. How can I verify that a new-surplus QUINT-PS/1AC/24DC/10 is genuine?
New surplus generally means unused inventory, but the condition description alone does not establish authenticity or operational performance.
Ask for:
- Photographs of the actual unit and its 2866763 identification label.
- Evidence of packaging and traceability, where available.
- Inspection or functional-test results.
- Disclosure of any previous installation, repair, or storage damage.
- Written warranty and return terms.
For a critical PLC or DCS cabinet, request testing evidence appropriate to the unit’s intended use rather than relying only on a visual inspection.
6. What happens if the power supply operates above 60°C?
The manufacturer specifies an operating range up to 70°C, with output derating of 2.5% per kelvin above 60°C.
That means the supply should not be assumed to deliver its full nominal output continuously at the top of the temperature range. Check cabinet internal temperature—not just the room temperature—and allow for heat generated by adjacent devices. Adequate spacing and ventilation are important when the cabinet operates near the derating threshold.
7. What warranty and testing should I require when purchasing this power supply?
Request written confirmation of warranty duration, coverage, return authorization, and whether the unit is new surplus, used, or refurbished.
For an industrial control application, useful checks include:
- Verification of the model and catalog number.
- Visual inspection of terminals, housing, and mounting features.
- AC input and regulated DC output checks.
- Output behavior under an appropriate load.
- Verification of status indication and monitoring outputs, where applicable.
A supplier’s warranty does not replace correct circuit protection, load calculations, or commissioning tests.
