Overview
The Phoenix Contact QUINT-PS/1AC/24DC/20 is a primary-switched QUINT POWER supply unit designed for DIN rail mounting in industrial control cabinets and automation systems. This model combines robust switching-mode design with advanced SFB (Selective Fuse Breaking) Technology to deliver reliable 24 V DC power at 20 A continuous output. The unit accepts 1-phase AC input (100–240 V AC) and can also operate from DC sources (90–350 V DC), making it versatile for applications requiring redundancy or flexible power distribution.
Key Features
- SFB Technology: Enables six times the nominal current for 12 ms to trigger standard circuit-breakers reliably and quickly, with selective fault isolation so important system parts continue to operate
- Power Boost Function: Provides static power reserve for reliable starting of heavy loads
- Preventive Function Monitoring: Reports critical operating states before errors occur, ensuring high system availability
- Compact DIN Rail Design: Space-efficient form factor for standard 35 mm DIN rail mounting
- Wide Input Range: Accepts AC input from 100–240 V (nominal), 85–264 V (extended), and DC input from 90–350 V
- Output Voltage Adjustment: Adjustable from 18 V DC to 29.5 V DC
Technical Specifications
- Output Voltage: 24 V DC (adjustable 18–29.5 V DC)
- Output Current: 20 A continuous
- Input Voltage (AC): 100–240 V AC (nominal); 85–264 V AC (extended range)
- Input Voltage (DC): 90–350 V DC
- Efficiency: 93% minimum
- Mounting: DIN rail (35 mm)
- Dimensions: 130 × 125 × 90 mm (W × H × D)
- Connection: Screw terminals
- Technology: Primary-switched with SFB (Selective Fuse Breaking)
- Part Number: 2866776
- Origin: Thailand
- RoHS Compliant: Yes
Typical Applications
The QUINT-PS/1AC/24DC/20 is widely deployed in:
- Control cabinet power distribution for PLCs, drives, and I/O modules
- Industrial automation systems requiring 24 V DC auxiliary power
- Machinery and equipment control circuits
- Harsh-environment installations (marine, oil/gas, outdoor cabinets) where selective fault protection is critical
- Redundant power systems using Phoenix Contact QUINT diode or OR-ING modules
Compatibility & Replacements
Compatible With
- Phoenix Contact QUINT Power supply ecosystem (redundancy modules, diode modules)
- Standard 35 mm DIN rail-mounted control architecture
- Industrial PLCs and automation controllers requiring 24 V DC auxiliary power
- Servo drives, frequency inverters, and I/O terminals operating at 24 V DC
- Safety relay modules and diagnostic equipment compatible with 24 V control circuits
Replaces / Drop-In Replacement For
- Earlier QUINT POWER models with equivalent form factor and 24 V DC / 20 A output
- Direct upgrade path to QUINT4-PS/1AC/24DC/20 (part number 2904602) for new projects
- Phoenix Contact recommends QUINT4 series for new designs; verify mechanical and electrical compatibility with existing mounting and wiring before substitution
Works With
- Standard industrial control cabinet designs and DIN rail systems
- Phoenix Contact QUINT-DIODE and QUINT-ORING redundancy modules for 1×40 A or 2×20 A configurations
- Conventional miniature circuit breakers and industrial standard protective devices
- Distributed I/O and bus systems compatible with 24 V DC supply
