Phoenix Contact QUINT-PS/1AC/24DC/40 DIN Rail Power Supply

Overview

The QUINT-PS/1AC/24DC/40 (Part No. 2866789) from Phoenix Contact is a premium QUINT POWER series DIN rail power supply designed for mission-critical industrial systems.
It delivers a stable 24 V DC output at up to 40 A and integrates advanced protection, diagnostics, and power reserve technologies to maximize uptime in demanding control environments.

This primary-switched power supply is optimized for applications where high current capability, fast fault isolation, and predictive monitoring are essential.

Electrical Performance

• Input supply: Single-phase AC, nominal range 100–240 V AC
• Input frequency: 50 / 60 Hz
• Nominal output voltage: 24 V DC
• Output voltage adjustment range: approximately 18–29.5 V DC (via potentiometer)
• Continuous output current: 40 A
• Nominal output power: 960 W
• Efficiency: up to 95% under nominal load conditions
• Dynamic response optimized for rapid load changes

Integrated Protection and Monitoring

• Selective Fuse Breaking (SFB) technology provides short-term high current pulses (up to six times rated current) to reliably trip downstream circuit breakers
• POWER BOOST function supplies additional power headroom for starting capacitive or high-inrush loads
• Active overload and short-circuit protection with automatic recovery
• Preventive function monitoring enables early detection of voltage drops, overload trends, and thermal stress before system failure occurs

Mechanical and Installation Details

• Mounting method: Standard 35 mm DIN rail
• Connection method: Heavy-duty screw terminals suitable for high-current conductors
• Housing material: Industrial-grade metal enclosure for improved thermal dissipation
• Cooling concept: Natural convection, no fan required
• Degree of protection: IP20 (control cabinet installation)

Environmental and Compliance Data

• Operating temperature range: –25 °C to +70 °C (derating above nominal temperature)
• Storage temperature: –40 °C to +85 °C
• Vibration and shock resistance compliant with industrial control standards
• Compliance: CE, UL, CSA, and RoHS compliant

Typical Applications

• Distributed control systems (DCS) and PLC cabinets
• Process automation and continuous manufacturing lines
• Power distribution for high-current I/O stations
• Machine control systems with heavy motor starters or solenoid loads
• Critical infrastructure requiring fast fault isolation and high availability

FAQ

Q: What makes the QUINT POWER series different from standard DIN rail power supplies?
A: QUINT POWER units integrate SFB technology, POWER BOOST, and preventive diagnostics, enabling higher system availability and faster fault handling compared to conventional supplies.

Q: Can this power supply handle high inrush currents?
A: Yes. The POWER BOOST and SFB features are specifically designed to support capacitive and inductive loads during startup.

Q: Is the output voltage adjustable?
A: Yes. The output voltage can be fine-tuned within the specified adjustment range to compensate for voltage drops or specific load requirements.