Phoenix Contact 2907071 Power Supply – QUINT4-UPS/24DC/24DC/20
The Phoenix Contact QUINT4-UPS/24DC/24DC/20 is a high-performance DIN rail uninterruptible power supply (UPS) designed to safeguard 24 V DC loads against power interruptions. Featuring IQ Technology, advanced diagnostics, and high-speed switching, it ensures maximum system uptime and intelligent battery management.
This UPS delivers 20 A nominal output, supports up to 5 A charging current, and offers seamless transition to battery power with zero switch-over time. Built for industrial reliability, it supports VRLA and Li-ion batteries with intelligent state-of-charge and condition monitoring.
Note: Operation requires compatible energy storage modules. View mandatory accessories.
Technical Specifications
Model: QUINT4-UPS/24DC/24DC/20
Part Number: 2907071
Product Type: DC UPS Module
Input Voltage Range: 18–30 V DC
Output Voltage: 24 V DC (UOUT = UIN – 0.4 V DC)
Nominal Output Current: 20 A
Static Boost: 25 A
Dynamic Boost: 30 A (5 s)
Charging Current: Max. 5 A
Mounting Type: DIN rail NS 35/7.5, NS 35/15
Dimensions (W × H × D): 40 × 130 × 132 mm
Weight: Approx. 0.9 kg
Input Characteristics
- Voltage Type: DC
- Nominal Voltage: 24 V DC
- Input Range: 18–30 V DC
- Inrush Current: ≤ 8 A (≤ 4 ms)
- Voltage Drop (Input/Output): 0.4 V
- Reverse Polarity Protection: Yes
- Max Power Consumption: 738 W (full load + max charge)
- Buffer Threshold: Fixed at 22 V DC
Output Characteristics
During Mains Operation:
- Output Voltage: UIN – 0.4 V DC (18–30 V DC range)
- Nominal Current: 20 A
- Power Output:
- 480 W @ 20 A
- 600 W @ 25 A (Static Boost)
- 720 W @ 30 A (Dynamic Boost, 5 s)
- SFB Tripping: 120 A for 15 ms
During Battery Operation:
- Output Voltage: UBAT – 0.4 V DC
- Voltage Range: 19–28 V DC
- Same output current and power as mains operation
- Switch-Over Time: 0 ms
Battery & Charging
- Battery Types Supported: VRLA, VRLA-WTR, Li-ion
- Nominal Battery Voltage: 24 V DC
- Charging Current: Up to 5 A (configurable)
- Nominal Battery Capacity: 3–135 Ah
- Charging Time (12 Ah): Approx. 165 min
- Buffer Time (12 Ah): Up to 22 min
- End-of-Charge Voltage: Configurable (typ. 27.6 V)
- Charge Curve: IU0U with IQ Technology
- Temperature Compensation: 42 mV/K
Monitoring & Signaling
- IQ Technology: Yes, for SoC, SoH, deep discharge, and predictive maintenance
- Digital Inputs:
- Bat-Start
- PS Boost
- Remote shutdown
- Digital Outputs (DO):
- Alarm
- Bat. Mode
- Ready
- Analog Input (AI): Optional use on PS Boost channel
- Visual Indicators (LEDs):
- Green (DC OK, SOC)
- Red (Alarm, SOC < 20%)
- Yellow (Battery Mode)
- Red/Green (Data communication)
Mechanical & Connection Data
- Housing Material: Stainless steel X6Cr17 with aluminum side elements
- Connection Type:
- Input/Output: Screw terminals (0.2–6 mm²)
- Signals: Push-in connection (0.2–1 mm²)
- Battery: Screw terminals (0.2–6 mm²)
- Communication: Screw terminals (0.2–1 mm²)
- Tightening Torque: 0.5–0.6 Nm
- Mounting Orientation: Horizontal DIN rail
- Installation Clearance:
- Side: 5 mm
- Top/Bottom: 50 mm
Environmental & Reliability
- Protection Class: III (without PE)
- Degree of Protection: IP20
- Operating Temperature: –25°C to +70°C (derating above 60°C: –2.5%/K)
- Storage Temperature: –40°C to +85°C
- Startup Temp (tested): –40°C
- Max Altitude: 4000 m
- Humidity: ≤ 95% (non-condensing)
- Shock Resistance: 30 g / 18 ms
- Vibration Resistance: 2.3 g (15–150 Hz)
- MTBF:
-
1,940,000 h @ 25°C
-
1,157,000 h @ 40°C
-
568,000 h @ 60°C
-
- Environmental Standards: RoHS, WEEE, REACH compliant
Applications
Ideal For:
- Industrial control panels requiring seamless 24 V DC continuity
- SCADA and automation systems with critical loads
- Equipment needing predictive battery maintenance and diagnostics
- Long-buffer runtime installations with VRLA or Li-ion storage
- Systems requiring fast SFB breaker response and zero switch-over
Key Features & Benefits
✅ Zero Switch-Over Time: 0 ms transition ensures uninterrupted output.
✅ High Output Capacity: Delivers up to 30 A peak with 720 W max power.
✅ Intelligent Battery Management: IQ Technology optimizes charging and health monitoring.
✅ Flexible Compatibility: Works with VRLA and Li-ion batteries up to 135 Ah.
✅ Advanced Signaling: Full digital/analog interface plus LED status feedback.
📦 Available from Drive Outlet Megastore
The Phoenix Contact QUINT4-UPS/24DC/24DC/20 provides intelligent, seamless DC backup for mission-critical applications. With integrated IQ diagnostics and zero downtime switching, it’s the go-to solution for modern industrial UPS needs.
Need help selecting a compatible energy storage module? Contact our UPS specialists here.
Phoenix reliability, Drive Outlet delivery — your power, uninterrupted.

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