Phoenix Contact 2866792 Power Supply – QUINT-PS/3AC/24DC/20

The Phoenix Contact QUINT-PS/3AC/24DC/20 is a robust three-phase primary-switched DIN rail power supply, designed to deliver consistent and high-availability 24 V DC power in industrial control systems. It features advanced SFB (Selective Fuse Breaking) technology, 26 A POWER BOOST, and comprehensive diagnostics via relay and transistor outputs.

Designed for critical environments, this model provides high efficiency, wide AC/DC input compatibility, and fast tripping of circuit breakers for system protection. With adjustable voltage output and parallel/series connection support, it’s ideal for demanding automation, process, and motion control applications.

Technical Specifications

Model: QUINT-PS/3AC/24DC/20
Part Number: 2866792
Product Type: 3-Phase DIN Rail Power Supply
Input Voltage: 3× 320–575 V AC / 450–800 V DC
Output Voltage: 24 V DC ±1% (adjustable 18–29.5 V DC)
Nominal Output Current: 20 A
POWER BOOST: 26 A continuous (up to 40°C)
SFB Technology: 120 A for 12 ms
Efficiency: > 93%
Mounting Type: DIN rail (NS 35)
Dimensions (W × H × D): 69 × 130 × 122 mm
Weight: Approx. 1.5 kg

Input Characteristics

• Voltage Type: AC (3-phase) or DC
• Nominal Input Voltage Range: 3× 400–500 V AC
• Extended Input Range:
  • AC: 3× 320–575 V / 2× 360–575 V
  • DC: 450–800 V
• Frequency Range (AC): 45–65 Hz
• Inrush Current: < 20 A (typical)
• Input Power Consumption: 783 VA
• Power Factor: 0.66
• Internal Protection: Varistor, gas-filled surge arrester
• Discharge Current to PE: < 3.5 mA
• Buffering Time: > 20 ms (400 V AC), > 30 ms (500 V AC)

Output Performance

• Nominal Output Voltage: 24 V DC ±1%
• Adjustable Voltage Range: 18–29.5 V DC
• Nominal Output Current: 20 A
• POWER BOOST: 26 A (permanent, –25°C to +40°C)
• SFB Current Pulse: 120 A (12 ms)
• Output Power: 480 W
• Residual Ripple: < 40 mVPP
• Voltage Feedback Protection: ≤ 35 V DC
• Overvoltage Protection (OVP): < 35 V DC
• Rise Time: < 0.05 s (10% to 90%)
• Dynamic Load Deviation: < 3%
• Static Load Regulation: < 1%

Signaling & Diagnostics

• Signal Outputs:
  • DC OK (active): 18–24 V, max. 20 mA
  • DC OK (floating): Relay contact (30 V AC/DC, 1 A max)
  • POWER BOOST (active): 18–24 V, max. 20 mA
• Visual Indicators:
  • Green LED: DC OK
  • Flashing Green: UOUT < 0.9 × UN
  • Yellow LED: BOOST active
• Insulation Voltages:
  • Input/Output: 4 kV AC (type), 2 kV AC (routine)
  • Output/PE: 500 V DC
  • Input/PE: 3.5 kV AC (type)

Mechanical & Connection Data

• Housing Material: Galvanized steel with aluminum side elements
• Connection Type: Screw terminals
• Input Terminal Size:
  • Rigid: 0.2–6 mm²
  • Flexible: 0.2–4 mm²
  • AWG: 18–10
  • Stripping Length: 7 mm
• Output Terminal Size:
  • Rigid: 0.2–6 mm²
  • Flexible: 0.2–4 mm²
  • AWG: 12–10
  • Stripping Length: 7 mm
• Tightening Torque: 0.5–0.6 Nm
• Mounting Position: Horizontal DIN rail (EN 60715)
• Installation Clearance: 5 mm (side), 50 mm (top/bottom)

Environmental & Reliability

• Protection Class: I
• Degree of Protection: IP20
• Ambient Operating Temperature: –25°C to +70°C (derating above 60°C: –2.5%/K)
• Storage Temperature: –40°C to +85°C
• Startup Temperature: –40°C (tested)
• Max Altitude: 5000 m
• Humidity: 95% (non-condensing)
• Shock Resistance: 30 g / 18 ms (IEC 60068-2-27)
• Vibration Resistance:
  • < 15 Hz: ±2.5 mm
  • 15–150 Hz: 2.3 g
• MTBF:

  • 900,000 h @ 25°C

  • 534,000 h @ 40°C

  • 250,000 h @ 60°C

• Climatic Class: 3K3 (EN 60721)
• Temperature Code: T4

Applications

Ideal For:

• High-current 24 V DC applications in automation and process industries
• Circuit protection systems using SFB technology
• Control cabinets and switchgear in industrial machinery
• Parallel or redundant PSU configurations for high uptime systems
• Demanding environments with three-phase AC or DC bus input

Key Features & Benefits

✅ Powerful Output: 20 A nominal, 26 A BOOST for heavy loads.

✅ SFB Technology: Fast trip of standard circuit breakers.

✅ Flexible Input: Accepts 3-phase AC or high-voltage DC.

✅ Advanced Diagnostics: LED, relay, and active transistor feedback.

✅ Industrial Durability: Long MTBF and wide temperature range.

📦 Available from Drive Outlet Megastore

The Phoenix Contact QUINT-PS/3AC/24DC/20 is your go-to 3-phase 24 V DC power supply for high-performance, uninterrupted automation. It ensures maximum reliability through SFB protection, BOOST power reserves, and intelligent status signaling.

Need help planning a redundant setup or load-sharing scheme? Contact our power specialists today.

Three-phase muscle, Phoenix reliability — only at Drive Outlet.