Phoenix Contact 2903153 TRIO-PS-2G/3AC/24DC/5 – 3-Phase, 24 V DC, 5 A Power Supply
The Phoenix Contact 2903153 (TRIO-PS-2G/3AC/24DC/5) is a three-phase, primary-switched DIN rail power supply from the Phoenix Contact TRIO POWER range, second generation. It delivers 24 V DC at 5 A (120 W) and is designed for standard applications in machine building. A dynamic boost supplies 150% of the nominal current (7.5 A) for 5 seconds, so loads with high start-up current can be started reliably. At only 35 mm wide and with push-in connections, it is one of the most compact three-phase 24 V supplies for small control panels.
What the Part Number Means
- 2903153 – Phoenix Contact order number
- TRIO-PS – TRIO POWER power supply
- 2G – Second generation
- 3AC – Three-phase AC input (also works on two phases)
- 24DC – 24 V DC output
- 5 – 5 A nominal output current
Key Features
- Dynamic boost: 7.5 A (150% of nominal current) for 5 seconds
- Three-phase or two-phase input: 3× or 2× 400–500 V AC nominal
- Push-in connection: fast, tool-free wiring
- DC OK signalling: green LED and floating signal contact for monitoring by the PLC
- High reliability: MTBF over 2,300,000 hours at 25 °C
Key Specifications (Phoenix Contact 2903153 Datasheet)
Input
- Nominal input voltage: 3× 400–500 V AC or 2× 400–500 V AC
- Input voltage range: 3× 320–575 V AC
- Frequency: 50–60 Hz
- Input current: 3× 0.4 A (400 V AC) / 3× 0.3 A (500 V AC)
- Inrush current: ≤22 A (typical)
- Mains buffering: typ. 20 ms (400 V AC and 500 V AC)
- Internal input fuse: 3.15 A, slow-blow
- Recommended circuit breaker: 6–16 A (characteristic B, C, D or K)
Output
- Nominal output voltage: 24 V DC ±1%
- Setting range: 24–28 V DC
- Nominal output current: 5 A
- Dynamic boost: 7.5 A for 5 s
- Output power: 120 W (180 W for 5 s)
- Efficiency: >91.1% (at 400 V AC and nominal load)
- Residual ripple: ≤20 mVpp
- Overvoltage protection: ≤30 V DC
- Short-circuit proof and no-load proof
- Parallel connection for redundancy or higher capacity, and series connection, both possible
Signalling
- DC OK LED (green): lights when the output is above 90% of nominal voltage
- Floating DC OK signal contact (13/14): 30 V AC/DC, 100 mA
General Data
- Connection: push-in; input and output 0.2–4 mm² rigid / 0.2–2.5 mm² flexible (AWG 24–12)
- Mounting: DIN rail NS 35
- Degree of protection: IP20
- Protection class: II (in closed control cabinet)
- MTBF (IEC 61709, SN 29500): >2,300,000 h at 25 °C / >1,300,000 h at 40 °C
- Ambient temperature (operation): -25 °C to +70 °C, derating 2.5%/K above +60 °C
- Start-up: type-tested at -40 °C
- Storage temperature: -40 °C to +85 °C
- Installation altitude: up to 5000 m (derating above 2000 m)
- Dimensions (W × H × D): 35 × 130 × 115 mm
- Weight: approx. 411 g
Approvals and Standards
- UL Listed / cUL Listed (UL 508)
- UL/cUL Recognized (UL 60950-1)
- IECEE CB Scheme
- EAC
- DNV (marine)
- EN 50121-4 (railway applications)
Typical Applications
- 24 V DC supply in machine building
- Small control panels fed from a 400 V or 480 V three-phase network
- PLCs, sensors, small valve groups and signal circuits
- Direct replacement of 2903153 units in existing panels
Buy the Phoenix Contact 2903153 from Atlantech Drives
Atlantech Drives supplies the Phoenix Contact 2903153 TRIO-PS-2G/3AC/24DC/5 with fast worldwide shipping and a 12-month warranty. Our experienced sales team can also quote other TRIO POWER and QUINT power supplies, and QUINT UPS modules. Request a quote today for price and availability.
