Phoenix Contact 2866394 Power Supply – TRIO-PS/3AC/24DC/20

The Phoenix Contact TRIO-PS/3AC/24DC/20 is a compact and robust 3-phase DIN rail power supply delivering 24 V DC at 20 A for industrial control systems. Engineered for high reliability, this unit is ideal for standard machine building, offering global approvals, wide-range input tolerance, and consistent performance across a broad temperature range.

Equipped with transient surge protection, active current limitation, and unlimited capacitive load capability, the TRIO POWER series ensures dependable power in demanding environments while supporting both parallel and series connection options.

Technical Specifications

Model: TRIO-PS/3AC/24DC/20
Part Number: 2866394
Product Type: Power Supply Unit
Mounting: DIN rail NS 35
Housing Material: Zinc-plated steel with aluminum sides
Dimensions (W × H × D): 115 × 130 × 152.5 mm
Weight: Approx. 2.2 kg

Electrical Characteristics

Input:

• Nominal Input Voltage: 3× 400–500 V AC
• Extended Range: 3× 320–575 V AC | 2× 360–575 V AC
• Frequency Range: 45–65 Hz
• Inrush Current: < 15 A
• Power Factor (cos φ): 0.67
• Power Consumption: 793 VA
• Surge Protection: Varistor-based
• Input Protection: B6/B10/B16 fuse recommended
• Mains Buffering Time: > 17 ms (at 3× 400 V AC)

Output:

• Output Voltage: 24 V DC ±1%
• Adjustable Range: 22.5–29.5 V DC
• Nominal Output Current: 20 A
• Output Power: 480 W
• Efficiency: 91% (at 400 V AC)
• Residual Ripple: < 10 mVPP
• Max. Capacitive Load: Unlimited
• Active Current Limiting: Approx. 25 A
• Rise Time: < 2 ms (10–90%)
• Derating: 2.5%/K above 55°C (operation up to 70°C)
• Overvoltage Protection: < 35 V DC
• Feedback Voltage Resistance: 35 V DC
• Parallel Operation: Yes
• Series Connection: Yes

Mechanical & Connection Data

Input Terminal (Screw):

• Rigid/Flexible: 0.2–2.5 mm²
• AWG: 24–14
• Stripping Length: 9 mm
• Torque: 0.4–0.5 Nm
• Screw Thread: M2.5

Output Terminal (Screw):

• Rigid: 0.5–6 mm²
• Flexible: 0.5–4 mm²
• AWG: 12–10
• Stripping Length: 14 mm
• Torque: 0.5–0.6 Nm
• Screw Thread: M3

Mounting Position: Horizontal on DIN rail NS 35
Installation Clearance: 0 mm (sides), 50 mm (top/bottom)

Environmental & Reliability

• Operating Temperature: –25°C to +70°C (derating > 55°C)
• Storage Temperature: –40°C to +85°C
• Relative Humidity: ≤ 95% (non-condensing at 25°C)
• Degree of Protection: IP20
• Protection Class: I
• Altitude: ≤ 2000 m
• MTBF (25°C): > 1,190,000 hours
• Shock Resistance: 30 g, 18 ms (IEC 60068-2-27)
• Vibration Resistance: 2.3 g, 15–150 Hz (IEC 60068-2-6)
• Pollution Degree: 2
• Overvoltage Category: III
• Climatic Class: 3K3 (EN 60721)

Applications

Perfect for:

• General machine building
• Industrial control systems
• Power distribution panels
• PLC and sensor networks
• Global export systems with varying input voltages

Key Features & Benefits

✅ High Output Current: 20 A continuous at 24 V DC.

✅ Universal Input: 320–575 V AC, compatible with 2- and 3-phase systems.

✅ Robust Housing: Steel and aluminum for industrial-grade durability.

✅ LED Diagnostics: “DC OK” indicator for easy status monitoring.

✅ Unlimited Capacitive Load: Flexible use across automation devices.

📦 Available from Drive Outlet Megastore

The Phoenix Contact TRIO-PS/3AC/24DC/20 is your reliable, efficient power supply for industrial control panels. Count on its performance and longevity in demanding factory environments.

Need help with sizing or configuring your panel? Contact our support team today.

Phoenix durability. Drive Outlet dependability — power built for production.