Phoenix Contact QUINT-PS-1AC-24DC-5 – 24VDC/5A Single-Phase DIN Rail Power Supply | QUINT-PS Series
Engineering Background
The QUINT-PS series represents Phoenix Contact’s flagship line of primary-switched DIN rail power supplies, engineered specifically for demanding industrial control environments. Developed in Germany and manufactured to IEC 60950-1 / EN 61558 standards, the QUINT-PS-1AC-24DC-5 delivers stable 24 VDC output at 5 A continuous current — the workhorse rating for single-axis PLC I/O racks, field junction boxes, and distributed control panels.
Product Positioning
Designed for procurement engineers specifying reliable 24 VDC bus power in IEC 61131-compliant automation architectures. The QUINT-PS-1AC-24DC-5 is the preferred choice when load circuits demand transient overload headroom beyond the nameplate rating — enabled by Phoenix Contact’s patented Selective Fuse Breaking (SFB) technology, which delivers up to 200% rated current for 12 ms to blow downstream fuses without nuisance tripping the supply itself.
Complete Technical Specifications
| Parameter | Value |
|---|---|
| Model / Order No. | QUINT-PS-1AC-24DC-5 | 2866763 |
| Input Voltage Range | 85 – 264 VAC (1-phase) / 90 – 350 VDC |
| Input Frequency | 45 – 65 Hz |
| Output Voltage | 24 VDC (adjustable 18 – 29.5 VDC) |
| Output Current | 5 A continuous |
| Output Power | 120 W |
| SFB Boost Current | ≥ 200% (≥ 10 A) for ≥ 12 ms |
| Efficiency | ≥ 91% at full load |
| Ripple & Noise | < 50 mV p-p |
| Hold-Up Time | ≥ 20 ms at full load |
| Inrush Current | < 20 A (cold start) |
| Operating Temperature | -25 °C to +70 °C (derating above 60 °C) |
| Storage Temperature | -40 °C to +85 °C |
| Relative Humidity | 5 – 95% RH (non-condensing) |
| Protection Class | IP20 (DIN rail mounted) |
| Mounting | 35 mm DIN rail (EN 60715) |
| Dimensions (W × H × D) | 45 × 130 × 125 mm |
| Weight | approx. 760 g |
| Certifications | CE, UL 508, cULus, GL, ATEX Zone 2, EAC |
| MTBF | > 500,000 h (MIL-HDBK-217F, 25 °C) |
| Country of Origin | Germany |
Proven Application Environments
- PLC Control Panels – Primary 24 VDC bus supply for Siemens S7, Allen-Bradley ControlLogix, Mitsubishi MELSEC, and Omron NX/NJ I/O racks
- DCS Field Marshalling Cabinets – Stable bus power for HART/FOUNDATION Fieldbus transmitter loops and solenoid valve banks
- Motor Control Centers (MCC) – Auxiliary control voltage for contactors, relays, and safety PLCs
- Hazardous Area Installations – ATEX Zone 2 rated; suitable for Zone 2 / Class I Div 2 enclosures with appropriate housing
- Railway & Transportation – GL-certified for shipboard and rail trackside applications
- Building Automation (BAS/BMS) – 24 VDC supply for BACnet/Modbus field devices and actuators
Engineering Advantages
- SFB Technology (Selective Fuse Breaking) – Delivers ≥ 200% output current for ≥ 12 ms, ensuring reliable downstream fuse coordination without tripping the PSU
- Wide Input Range (85–264 VAC) – Universal input eliminates the need for separate 110 V / 230 V variants; ideal for global machine builders
- Active Power Factor Correction (PFC) – PF > 0.99 reduces harmonic distortion and lowers apparent power demand on facility transformers
- Parallel Operation Ready – Supports redundant N+1 configurations with optional Redundancy Module (QUINT-ORING)
- Diagnostic Signal Output – Floating relay contact (DC OK) for PLC monitoring of supply health; enables predictive maintenance integration
- Compact 45 mm Width – High power density minimizes panel real estate; fits standard 45 mm DIN rail pitch
- Extended Temperature Range – Operates to -25 °C without derating; suitable for outdoor enclosures in cold climates
System Architecture & Signal Flow
The QUINT-PS-1AC-24DC-5 operates as a primary-switched, isolated AC/DC converter. Input AC is rectified and filtered, then processed through a high-frequency PWM stage (switching frequency > 100 kHz) with galvanic isolation via a ferrite transformer. The secondary side employs synchronous rectification and an LC output filter to achieve < 50 mV ripple. The DC OK relay contact closes when output voltage exceeds 21 VDC, providing a clean binary signal to the supervisory PLC or SCADA system. For redundant architectures, two QUINT-PS units are paralleled through a QUINT-ORING diode module, ensuring seamless failover with zero output interruption.
Sourcing & Quality Verification
- Authorized Distribution Channel – All units sourced through verified Phoenix Contact authorized distributors with full traceability to factory batch records
- Counterfeit Prevention – Each unit ships with original Phoenix Contact holographic label, CE/UL markings, and factory test report upon request
- Condition – New-in-box (NIB) with original Phoenix Contact packaging; no refurbished or remanufactured stock
- Warranty – 12-month Konmask.com warranty; Phoenix Contact OEM warranty terms apply where applicable
- Documentation – Datasheet, wiring diagram, and EU Declaration of Conformity available on request
Procurement Process
- Confirm Quantity & Lead Time – Contact us via the form below or email [email protected] with your required quantity and delivery timeline
- Receive Quotation – We respond within 1 business day with pricing, availability, and estimated ship date
- Place Order – Secure checkout via Shopify; payment by T/T bank transfer, PayPal, or credit card accepted
- Shipment & Tracking – Ships via DHL Express / FedEx International Priority with full tracking; export documentation (commercial invoice, packing list, COO) included
- Incoming Inspection Support – We can provide factory test data and batch certificates to support your incoming QC process
Technical FAQ
Q: Can the QUINT-PS-1AC-24DC-5 operate on 110 VAC input?
A: Yes. The universal input range (85–264 VAC) covers both 110 VAC (North America) and 230 VAC (Europe/Asia) without any switch or jumper change.
Q: Is parallel redundant operation supported?
A: Yes, with the addition of a Phoenix Contact QUINT-ORING redundancy module. Two QUINT-PS-1AC-24DC-5 units can be paralleled for N+1 redundancy with automatic failover.
Q: What does the DC OK relay contact connect to?
A: The floating relay contact (terminals 11/12/14) closes when output voltage is within specification (> 21 VDC). Wire it to a PLC digital input for real-time PSU health monitoring.
Q: Is this unit suitable for ATEX Zone 1 hazardous areas?
A: No. The QUINT-PS-1AC-24DC-5 is rated for Zone 2 / Class I Div 2 when installed in a suitably rated enclosure. Zone 1 applications require an intrinsically safe barrier or Ex d enclosure.
Q: What is the output voltage adjustment range?
A: The output voltage is adjustable from 18 VDC to 29.5 VDC via the front-panel potentiometer, allowing fine-tuning for cable voltage drop compensation.
Q: Can I get a factory test report or Certificate of Conformance?
A: Yes. Contact [email protected] with your order number and we will provide the relevant factory documentation.
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