Description

QUINT-PS/1AC/24DC/3.5 Industrial DIN Rail Power Supply

Technical Specifications

• Product Model: QUINT-PS/1AC/24DC/3.5
• Brand: Phoenix Contact
• Warranty: One Year
• Input Voltage: 85–264 VAC single-phase, 90–350 VDC wide-range input
• Operating Temperature: -25°C to +70°C (derating above 60°C)
• Storage Temperature: -40°C to +85°C
• Response Time: ＜50 ms fault detection and regulation response
• Protection Class: IP20 for DIN rail cabinet installation
• Accuracy Class: Output voltage regulation ±1% full range
• Output Frequency: DC output (50/60 Hz AC input compatible)
• Rated Current Range: 3.5 A constant at 24 VDC
• Communication Interface: No digital bus interface, dry contact relay alarm output
• Supported Protocols: N/A
• Overload Capacity: 6× nominal current (21 A) for 12 ms via SFB technology; permanent POWER BOOST overload reserve for motor inrush
• Dimensions: 125 mm × 110 mm × 45 mm

Product Overview

The QUINT-PS/1AC/24DC/3.5 is a primary switched-mode industrial power supply from Phoenix Contact’s QUINT POWER series, engineered to deliver stable 24 VDC regulated power for PLCs, sensors, relays, solenoid valves and low-power automation I/O modules. It addresses two critical pain points in industrial control cabinets: indiscriminate tripping of upstream circuit breakers during short-circuit faults and insufficient surge capacity for inductive load startup. The integrated Selective Fuse Breaking (SFB) technology triggers standard breakers selectively to isolate faulty branches while keeping the rest of the control system operational, reducing unplanned plant downtime. Static POWER BOOST power reserve handles high inrush currents from contactors and DC motors without voltage collapse. Automation panel designers, system integrators, machine OEMs and facility electrical maintenance teams gain tangible benefits from its global wide input voltage compatibility, built-in preventive diagnostic monitoring and long mean time between failures exceeding 500,000 hours. The unit features adjustable output voltage from 18 VDC to 29.5 VDC, robust internal surge suppression and screw-type terminal connections, fully compliant with international industrial safety and EMC standards for harsh factory environments.

Core Functional Features

1. Proprietary SFB selective breaking technology limits fault impact by tripping only the defective circuit path during short circuits
2. Static POWER BOOST overload reserve reliably starts high-inductance loads such as DC solenoids and small geared motors
3. Preventive condition monitoring with potential-free relay contact to pre-alarm overvoltage, undervoltage or overheating before shutdown
4. Wide universal single-phase AC input accepts global mains voltages from 85 VAC to 264 VAC for worldwide equipment deployment
5. Adjustable 18–29.5 VDC output potentiometer compensates for long cable voltage drop in field wiring runs
6. Standard 35 mm DIN rail snap mounting with tool-free installation, compact footprint optimizes cabinet space utilization
7. Built-in internal slow-blow input fuse and multi-level protection against overvoltage, overcurrent, reverse polarity and thermal overload