Overview
The Phoenix Contact QUINT-PS-100-240AC/24DC/20 is a DIN rail mounted switching-mode power supply engineered for demanding industrial automation and control applications. Rated for 24V DC / 20A output with a wide 100–240 VAC input (5.7–2.5A), it combines primary-switched efficiency with single-phase, 50–60 Hz operation. This model is part of the QUINT POWER series, recognized for high inrush-current handling and extensive global approvals. The unit is discontinued by the manufacturer; Phoenix Contact recommends QUINT4-PS/1AC/24DC/20 (part 2904602) for new installations.
Key Features
- Primary-switched topology for high energy efficiency and reduced heat dissipation
- Wide input voltage range (100–240 VAC) with automatic voltage selection—no manual configuration required
- Robust load-handling with POWER BOOST function for high inrush-current applications
- Integrated function monitoring diagnoses improper operating states and minimizes downtime
- Remote monitoring via active transistor switching output and floating relay contact
- Protected against idling, short circuits, and thermal overload
Technical Specifications
- Output Voltage: 24 V DC, regulated and adjustable
- Output Current: 20 A
- Output Power: 480 W
- Input Voltage Range: 100–240 VAC
- Input Current: 5.7–2.5 A (depending on input voltage)
- Input Frequency: 50–60 Hz
- Switching Mode: Primary-switched (1-phase)
- Mounting: DIN rail (35 mm profile)
- Number of Outputs: 1
- Operating Temperature Range: -25 °C to +70 °C (standard)
- Weight: Approximately 5.0 lbs
- Manufacturer Part Number: 2938620
- Status: Discontinued by manufacturer
Typical Applications
The Phoenix Contact QUINT-PS-100-240AC/24DC/20 suits industrial environments requiring reliable 24V DC power for:
- PLC and industrial controller power backup and primary supply
- Distributed I/O modules and field devices in manufacturing plants
- Heavy-load applications leveraging POWER BOOST inrush-current handling
- Global installations due to wide input voltage compatibility and multi-regional approvals
- Legacy system refurbishment and maintenance where original equipment matches this specification
Compatibility & Replacements
Compatible With
- DIN rail enclosures and standard 35 mm din rail systems
- 24V DC industrial automation devices (PLCs, I/O modules, solenoids, relays, sensors)
- Systems requiring 20A continuous output at 24V DC
- Single-phase industrial power distribution (50–60 Hz, 100–240 VAC input)
Replaces / Drop-In Replacement For
This unit is a QUINT-PS series legacy power supply. Verify compatibility with your system integrator before ordering for retrofit applications. Phoenix Contact recommends QUINT4-PS/1AC/24DC/20 (part 2904602) for new system designs.
Works With
- Phoenix Contact QUINT POWER series ecosystem (scalable modular design)
- Preventive monitoring systems via relay contact and transistor switch output
- Remote diagnostic networks for condition-based maintenance
- Standard industrial 24V DC control architectures (Allen-Bradley, Siemens, Omron, Schneider)




















