Phoenix Contact QUINT-PS100-240AC/24DC/10: Safety-Enhanced DIN Rail Power Supply for Harsh Industrial Sites
In demanding industrial environments where control system uptime is non-negotiable, the Phoenix Contact QUINT-PS100-240AC/24DC/10 (Part No. 2938604) stands as a cornerstone of cabinet-level power integrity. Rated at 24 VDC / 10 A with a wide-range AC input of 100–240 VAC, this ruggedized DIN rail power supply is engineered to sustain continuous, uninterrupted power delivery across petrochemical plants, power generation facilities, mining operations, water treatment stations, metallurgical complexes, port logistics systems, and high-cycle discrete manufacturing lines.
Unlike standard SMPS units, the QUINT series incorporates Phoenix Contact’s patented SFB Technology (Selective Fuse-Breaking), which delivers up to 200% rated current for 12 ms to reliably trip downstream circuit breakers and protect branch circuits — a critical safety function in multi-load control cabinets where nuisance tripping or partial load faults can cascade into full-line shutdowns. This active current boost capability directly reduces the risk of control interruption caused by downstream short circuits, protecting PLC I/O modules, relay output cards, and field instrument loops simultaneously.
Safety Reliability Table
| Parameter | Specification |
|---|---|
| SKU / Part No. | QUINT-PS100-240AC/24DC/10 / 2938604 |
| Brand / Series | Phoenix Contact / QUINT Power |
| Input Voltage | 100–240 VAC (wide range), 50/60 Hz |
| Output Voltage | 24 VDC (adjustable 18–29.5 VDC) |
| Output Current | 10 A continuous |
| Output Power | 240 W |
| SFB Peak Current | Up to 200% (20 A) for 12 ms — selective fuse breaking |
| Efficiency | ≥ 93% at full load |
| Surge Protection | Built-in input transient suppression; compatible with TRABTECH surge arresters |
| Protective Functions | OVP, OCP, OTP, short-circuit auto-restart |
| Ambient Temperature | −25 °C to +70 °C (derating above 60 °C) |
| Relative Humidity | 5–95% RH, non-condensing |
| Vibration Resistance | IEC 60068-2-6 compliant |
| Shock Resistance | IEC 60068-2-27 compliant |
| EMC / Interference Immunity | EN 61000-6-2 (industrial immunity), EN 55011 Class B emissions |
| Safety Certifications | UL 508, CE, GL, cULus, ATEX Zone 2 (with appropriate enclosure) |
| Mounting | 35 mm DIN rail (EN 60715) |
| Housing / Protection | IP20, flame-retardant plastic housing |
| Dimensions (W×H×D) | 50 × 130 × 125 mm |
| Weight | 1,240 g |
| Country of Origin | Germany |
| Warranty | 12 Months — covers manufacturing defects and functional failure under normal operating conditions |
| Outgoing Inspection | 100% output voltage, load regulation, and protection function tested before shipment |
Control Cabinet Protection Strategy
A robust industrial control cabinet is only as reliable as its power backbone. The QUINT-PS100-240AC/24DC/10 is typically deployed as the primary 24 VDC bus supply feeding a range of critical loads. In a typical safety-oriented cabinet architecture, it powers Phoenix Contact QUINT-BUFFER/24DC/40 UPS buffer modules that bridge momentary mains interruptions without triggering PLC watchdog resets — a common cause of unplanned downtime in continuous process plants.
On the load side, the PSU feeds Phoenix Contact QUINT-ORING/24DC/2X10/1X20 redundancy modules, enabling dual-PSU configurations where a second QUINT unit takes over seamlessly upon primary failure — essential in safety instrumented systems (SIS) and emergency shutdown (ESD) panels. Signal integrity is maintained by pairing the supply with Phoenix Contact TRABTECH PT 2X2-24DC-ST surge protection devices on field cable entries, preventing transient voltages from propagating into 24 VDC I/O loops connected to Siemens S7-300/400 or Rockwell ControlLogix PLC backplanes.
For distributed I/O architectures using Phoenix Contact Inline (ILC) or Axioline F remote I/O stations, stable 24 VDC bus voltage is critical to prevent analog signal drift on 4–20 mA transmitter loops. The QUINT’s tight load regulation (±1%) ensures that even under dynamic load switching — such as simultaneous energization of multiple Phoenix Contact PLC-RSC relay output modules or solenoid valve banks — output voltage remains within the safe operating window of connected field devices.
In high-interference environments such as variable frequency drive (VFD) panels or arc furnace control rooms, the QUINT-PS100-240AC/24DC/10 is often supplemented by Phoenix Contact EMC line filters (FLKM series) on the AC input side, and Phoenix Contact MINI-SYS-PS 100-240AC/24DC/2.5 secondary supplies for isolated sensor circuits — preventing ground loop noise from corrupting encoder feedback or safety relay coil circuits. The combination of active power factor correction and high-frequency switching design minimizes conducted emissions, keeping the cabinet compliant with EN 61000-6-2 industrial immunity standards even in the presence of nearby Siemens SINAMICS or ABB ACS880 drive systems.
Critical Industrial Safety Applications
Petrochemical & Refinery Plants: In Zone 2 classified areas (with appropriate Ex-rated enclosures), the QUINT-PS100-240AC/24DC/10 powers safety relay modules and gas detection controller I/O, where power interruption could disable critical flame and gas monitoring loops. Its SFB technology ensures that a shorted field cable does not collapse the entire 24 VDC bus, preserving the integrity of parallel safety channels.
Power Generation & Substation Control: In turbine control panels and substation RTU cabinets, the unit sustains 24 VDC auxiliary power for protection relay coils, SCADA I/O modules, and communication gateways (Modbus RTU / PROFIBUS DP converters) during grid disturbances. Its wide AC input range (100–240 VAC) accommodates voltage sags common in generator-backed auxiliary power systems.
Mining & Mineral Processing: Underground and surface mining control systems face extreme vibration, dust ingress, and wide temperature swings. The QUINT’s IEC 60068-2-6 vibration rating and −25 °C cold-start capability make it suitable for conveyor drive control panels, crusher automation cabinets, and ventilation safety interlock systems where ambient conditions routinely exceed standard PSU ratings.
Water & Wastewater Treatment: SCADA-controlled pump stations and chemical dosing systems rely on uninterrupted 24 VDC for PLC CPUs, flow transmitter loops, and motorized valve actuators. The QUINT’s OTP (over-temperature protection) with auto-restart prevents thermal runaway in poorly ventilated outdoor kiosks, while its diagnostic contact output enables remote fault signaling to the SCADA system without requiring a site visit.
Metallurgy & Steel Mills: Rolling mill and continuous casting control systems demand PSUs that withstand high electromagnetic interference from large induction furnaces and thyristor drives. The QUINT’s EN 61000-6-2 immunity rating and robust input filtering maintain stable output even in the presence of severe conducted and radiated interference, protecting the integrity of critical interlock and position feedback circuits.
Port & Logistics Automation: Container crane PLC panels and automated guided vehicle (AGV) charging infrastructure require reliable 24 VDC distribution across long cable runs. The QUINT’s adjustable output voltage (up to 29.5 VDC) compensates for cable voltage drop in large panels, ensuring remote I/O nodes and safety light curtain controllers receive adequate supply voltage at all times.
Safety and Quality FAQ
Q1: What does the 12-month warranty cover?
The 12-month warranty covers all manufacturing defects and functional failures under normal operating conditions, including output voltage deviation, protection circuit malfunction, and premature component failure. Warranty claims are supported with replacement unit dispatch and return logistics coordination. Units damaged by incorrect installation, overvoltage beyond rated input, or physical impact are assessed case by case.
Q2: What outgoing inspection is performed before shipment?
Every QUINT-PS100-240AC/24DC/10 unit undergoes a pre-shipment functional test covering: (1) output voltage accuracy at no-load and full-load, (2) load regulation across 10–100% load range, (3) SFB current boost activation verification, (4) OVP and OCP trip point confirmation, and (5) visual inspection for housing integrity and terminal condition. A test record is available upon request.
Q3: Is this unit compatible with existing Phoenix Contact QUINT system architectures?
Yes. The QUINT-PS100-240AC/24DC/10 is fully compatible with Phoenix Contact’s QUINT ecosystem, including QUINT-BUFFER, QUINT-ORING, and QUINT-UPS modules. It mounts on standard 35 mm DIN rail and uses Phoenix Contact’s COMBICON screw terminal interface, ensuring drop-in replacement compatibility with earlier QUINT-PS/1AC/24DC/10 units in existing cabinet layouts.
Q4: Can long-term supply and spare parts availability be guaranteed?
We maintain dedicated stock of the QUINT-PS100-240AC/24DC/10 (2938604) to support ongoing MRO (maintenance, repair, and operations) procurement for industrial facilities. For customers requiring scheduled spare parts programs or blanket purchase orders, we offer reserved inventory arrangements with agreed lead times, ensuring critical spare availability without the risk of production-line stoppage due to PSU failure.
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