Phoenix Contact 2904602 Power Supply – QUINT4-PS/1AC/24DC/20
The Phoenix Contact QUINT4-PS/1AC/24DC/20 is a powerful, fourth-generation QUINT POWER supply unit delivering 24 V DC at 20 A, engineered for critical industrial applications. With SFB Technology (Selective Fuse Breaking), NFC-configurable parameters, and a dynamic output boost up to 30 A, this DIN rail-mounted unit ensures maximum availability and adaptability in demanding automation environments.
The integrated preventive function monitoring allows early detection of critical operating states, while adjustable signaling thresholds and output characteristics offer superior system control.
Technical Specifications
Model: QUINT4-PS/1AC/24DC/20
Part Number: 2904602 Phoenix
Product Type: Switched-mode DIN rail power supply
Series: QUINT POWER (Gen 4)
Input Voltage Range:
- AC: 100–240 V AC (±10%, derating < 100 V)
- DC: 110–250 V DC (±40%, derating < 110 V)
Input Frequency: 50–60 Hz (±10%)
Output Voltage: 24 V DC (adjustable: 24–29.5 V DC)
Nominal Output Current: 20 A
Static Boost: 25 A (continuous)
Dynamic Boost: 30 A for 5 seconds
Output Power: Up to 720 W
Efficiency: - ~92.4% @ 120 V AC
- ~94% @ 230 V AC
Enclosure Rating: IP20
Mounting Type: DIN rail NS 35, EN 60715
Dimensions (W × H × D): 70 × 130 × 125 mm
Weight: Approx. 1.4 kg
Configuration Interface: NFC
Input & Electrical Features
- Inrush Current: ~11 A
- Power Factor (cos φ): 0.98
- Internal Fuse: 12 A slow-blow
- Recommended Input Breaker: 10–16 A (B, C, D, K curves)
- Transient Protection: Varistor, gas-filled surge arrester
- Mains Buffering Time: ~28 ms @ 120 V AC, ~29 ms @ 230 V AC
- Derating: 2.5%/K above 60°C
- Crest Factor: 1.55–1.65 typical
Output & Protection Features
- Short-Circuit Protection: Yes
- Overvoltage Protection: ≤ 32 V DC
- Feedback Resistance: ≤ 35 V DC
- Residual Ripple: < 50 mVPP
- Output Modes:
- U/I Advanced
- Smart HICCUP
- FUSE MODE
- Selective Fuse Breaking (SFB): 120 A for 15 ms
- Parallel Operation: Supported for redundancy/capacity
- Series Operation: Supported
Monitoring & Signaling
Signals Available:
- Out1 (Digital): 24 V DC, 20 mA (configurable)
- Out2 (Analog/Digital):
- 4–20 mA (±5%, ≤ 400 Ω)
- 24 V DC, 20 mA
- Relay (13/14): 24 V DC / 1 A or 30 V AC/DC / 0.5 A
LED Indicators:
- POut > 100%: Yellow
- POut > 75% / 50%: Green
- UOut > 0.9 × USet: Green
- UOut < 0.9 × USet: Flashing green
Control Input (Rem): SLEEP MODE functionality
- Output ON when open or > 40 kΩ
- Output OFF when < 5 kΩ
Mechanical & Connection Data
- Housing Material: Stainless steel (X6Cr17) + aluminum side elements
- Connection Method: Screw terminals
- Conductor Size:
- Input/Output: 0.2–6 mm² rigid / 0.2–4 mm² flexible
- Signal: 0.2–1.5 mm²
- Tightening Torque: 0.5–0.6 Nm
- Stripping Length: 8 mm
Environmental Conditions
- Operating Temperature: –25°C to +70°C
- Storage Temperature: –40°C to +85°C
- Altitude: ≤ 5000 m
- Humidity: ≤ 95% RH, non-condensing
- Shock (IEC 60068-2-27): 30g / 18 ms
- Vibration (DNV GL Class C): 2.3g, 5–100 Hz
- MTBF (IEC 61709):
-
1,112,000 h @ 25°C
-
673,000 h @ 40°C
-
309,000 h @ 60°C
-
- Protection Class: I
- Pollution Degree: 2
Applications
Ideal For:
- High-performance PLC and I/O systems
- Process automation requiring dynamic load handling
- Industrial installations where real-time configuration via NFC is beneficial
- Redundant 24 V DC power supply setups in mission-critical applications
Key Features & Benefits
✅ SFB Technology: Trips circuit breakers in milliseconds.
✅ Dynamic Boost to 30 A: Handles transient heavy loads effortlessly.
✅ NFC Configuration: Tailor output behavior, thresholds, and signals.
✅ High Efficiency: Up to 94% for energy-saving operation.
✅ Advanced Signaling: Custom analog/digital outputs and relay integration.
📦 Available Now from Drive Outlet Megastore
The Phoenix Contact QUINT4-PS/1AC/24DC/20 is available now at Drive Outlet Megastore, offering intelligent, powerful, and configurable 24 V DC power for modern control systems.
Need help with NFC setup or fuse coordination? Speak to our technical specialists today.
Performance you control – by Phoenix Contact, delivered by Drive Outlet Megastore.

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