Industrial 3-Phase Power Solution – Phoenix Contact QUINT-PS-3X400-500AC/24DC/30 | QUINT Series
Where This Product Is Used
The Phoenix Contact QUINT-PS-3X400-500AC/24DC/30 (Order No. 2938633) is a high-performance 3-phase DIN rail power supply engineered for demanding industrial environments. It is widely deployed in:
- PLC Control Panels – Provides stable 24 VDC bus power for Siemens S7, Allen-Bradley ControlLogix, Mitsubishi MELSEC, and Omron NX/NJ controllers.
- Machine Tool & CNC Systems – Feeds servo drives, HMI panels, and safety relays in high-cycle machining centers.
- Process Automation & DCS Cabinets – Powers field transmitters, I/O modules, and communication gateways in oil & gas, chemical, and water treatment plants.
- Automotive Assembly Lines – Supplies 24 VDC to conveyor control systems, vision inspection units, and robotic welding cells.
- Building Automation (BMS) – Drives HVAC controllers, fire alarm panels, and access control systems in large commercial facilities.
- Renewable Energy & Utility Substations – Used in wind turbine nacelle control cabinets and solar inverter monitoring systems.
- Railway & Transportation Infrastructure – Certified for trackside signaling and rolling stock auxiliary power applications.
Technical Specifications
| Part Number / Order No. | QUINT-PS-3X400-500AC/24DC/30 | 2938633 |
| Input Voltage | 3 × 400–500 VAC, 50/60 Hz (3-phase) |
| Output Voltage | 24 VDC (adjustable 18–29.5 VDC) |
| Output Current | 30 A (continuous) |
| Output Power | 720 W |
| QUINT POWER Boost | Up to 60 A for 12 ms (2× rated current) |
| Efficiency | ≥ 95.5 % (at full load) |
| Power Factor Correction | Active PFC, PF > 0.99 |
| Inrush Current Limiting | Electronic, < 15 A peak |
| Holdup Time | ≥ 20 ms at full load |
| Isolation | Input–Output: 4 kV AC |
| Protection Class | IP20 (DIN rail mounted) |
| Operating Temperature | −25 °C to +70 °C (derating above 60 °C) |
| Mounting | 35 mm DIN rail (EN 60715) |
| Dimensions (W × H × D) | 60 × 130 × 125 mm |
| Weight | 2.6 kg |
| Signal Contact | Relay output for remote monitoring (DC OK) |
| Series | QUINT POWER |
| Manufacturer | Phoenix Contact |
Why Engineers Specify This Model
- SFB Technology (Selective Fuse Breaking) – Delivers up to 2× rated current for 12 ms to reliably blow downstream fuses and protect branch circuits without nuisance tripping.
- Active PFC (> 0.99) – Minimizes reactive power demand on 3-phase infrastructure, reducing energy costs and harmonic distortion.
- ≥ 95.5 % Efficiency – Industry-leading efficiency reduces heat dissipation, enabling higher packing density in control cabinets.
- Integrated DC OK Relay – Enables direct integration with PLC digital inputs for predictive maintenance and remote fault diagnostics.
- Wide Input Range (400–500 VAC) – Compatible with global 3-phase grid standards without external transformers.
- Adjustable Output Voltage – Fine-tune output from 18 to 29.5 VDC to compensate for long cable runs in large installations.
- Proven QUINT POWER Platform – Backed by Phoenix Contact’s 40+ years of power supply engineering and global installed base.
Complete System Bill of Materials
For a complete 24 VDC distribution system, engineers typically pair this unit with:
- Phoenix Contact QUINT-DIODE/40 – Redundancy module for parallel PSU operation
- Phoenix Contact QUINT-BUFFER/24DC/40 – UPS buffer module for bridging power outages
- Phoenix Contact QUINT-CHECK/24DC – Load monitoring relay for downstream circuit supervision
- Phoenix Contact CB TM1 24DC/10A – 24 VDC miniature circuit breakers for branch protection
- Phoenix Contact TRABTECH PT 2X2-24DC-ST – Surge protection device for 24 VDC bus
- Phoenix Contact IBS IL 24 BK-T – Inline bus coupler for INTERBUS field device integration
Compliance & Industry Standards
- CE Marking – EU Low Voltage Directive 2014/35/EU & EMC Directive 2014/30/EU
- UL 508 Listed – Industrial Control Equipment (USA/Canada)
- IEC/EN 61131-2 – Programmable Controllers Power Supply Requirements
- IEC/EN 60950-1 / IEC 62368-1 – Safety of Information Technology Equipment
- EN 50155 – Railway Applications Electronic Equipment
- ATEX / IECEx – Suitable for use in Zone 2 hazardous areas (with appropriate enclosure)
- RoHS 2 Compliant – Restriction of Hazardous Substances
Quality Assurance & Sourcing
Konmask.com sources the QUINT-PS-3X400-500AC/24DC/30 (2938633) exclusively through verified Phoenix Contact authorized distribution channels. Every unit undergoes:
- Visual inspection and label verification against Phoenix Contact factory markings
- Functional output voltage and current load test prior to dispatch
- Anti-static packaging with humidity indicator cards for long-haul shipping
- Traceability documentation available upon request (batch/lot records)
We maintain stock of both new-in-box and factory-refurbished units. Condition is clearly stated on each listing. All units carry a minimum 12-month warranty.
How to Source This Part
- In Stock: Add to cart and check out directly – most orders ship within 1 business day.
- Bulk / Project Quantity: Contact us for volume pricing and lead-time commitment on quantities ≥ 5 units.
- Urgent Requirement: WhatsApp or call +0086 19859288691 for same-day quotation and express freight options.
- Obsolete / Long Lead-Time: If this part is showing as out of stock, submit an RFQ via [email protected] – we source globally.
Application-Specific FAQ
Q: Can this PSU power a Siemens S7-1500 PLC system with 20 I/O modules?
A: Yes. A fully loaded S7-1500 rack with 20 digital I/O modules typically draws 8–14 A at 24 VDC. The QUINT-PS-3X400-500AC/24DC/30 provides 30 A continuous with 60 A boost, giving substantial headroom for inrush and future expansion.
Q: Is this unit suitable for outdoor cabinet installations?
A: The unit itself is rated IP20 and requires an IP54 or higher enclosure for outdoor use. It operates reliably from −25 °C to +70 °C, making it suitable for most outdoor cabinet environments with proper thermal management.
Q: Can two units be paralleled for 60 A output?
A: Yes, using the Phoenix Contact QUINT-DIODE/40 redundancy module. This enables N+1 redundancy or true parallel operation for 60 A loads.
Q: What is the difference between this model and the QUINT-PS-1AC/24DC/30?
A: The 3X400-500AC variant accepts 3-phase 400–500 VAC input, making it ideal for industrial panels fed directly from MCC or distribution boards. The 1AC variant accepts single-phase 100–240 VAC, suited for lighter-duty or office-adjacent installations.
Q: Does this unit support redundant operation with a battery backup?
A: Yes. Pair with the Phoenix Contact QUINT-BUFFER/24DC/40 for seamless UPS bridging during mains interruptions, with no output voltage dip.
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