Phoenix Contact 2902992 UNO-PS/1AC/24DC/60W – 24 V DC, 2.5 A Power Supply
The Phoenix Contact 2902992 (UNO-PS/1AC/24DC/60W) is a compact, single-phase, primary-switched DIN rail power supply from the Phoenix Contact UNO POWER range. It delivers 24 V DC at 2.5 A (60 W) in a housing only 35 mm wide and 90 mm high, designed for small control boxes and installation distribution boards. With up to 90% efficiency, no-load losses under 0.3 W and NEC Class 2 approval, it is a simple and reliable 24 V supply for small loads.
What the Part Number Means
- 2902992 – Phoenix Contact order number
- UNO-PS – UNO POWER power supply
- 1AC – Single-phase AC input
- 24DC – 24 V DC output
- 60W – 60 W output power (2.5 A at 24 V)
Key Features
- Very compact: 35 × 90 × 84 mm, fits in shallow control boxes and distribution boards
- High efficiency: up to 90% at 230 V AC, with no-load losses under 0.3 W
- Long mains buffering at 230 V AC: over 85 ms
- NEC Class 2: UL 1310 approval for limited-energy circuits
- Short-circuit proof: HICCUP output characteristic
- Hazardous locations: Class I, Division 2, T4A approval
Key Specifications (Phoenix Contact 2902992 Datasheet)
Input
- Nominal input voltage: 100–240 V AC
- Input voltage range: 85–264 V AC, 50–60 Hz
- Input current: typ. 1.3 A at 100 V AC / typ. 0.6 A at 240 V AC
- Inrush current: <30 A (typical)
- Mains buffering: >20 ms at 120 V AC / >85 ms at 230 V AC
- Internal input fuse: 2.5 A, slow-blow
- Recommended circuit breaker: 6–16 A (characteristic B, C, D or K)
Output
- Nominal output voltage: 24 V DC
- Nominal output current: 2.5 A (-25 °C to +55 °C)
- Output power: 60 W
- Efficiency: typ. 90% at 230 V AC / typ. 88% at 120 V AC
- Residual ripple: <30 mVpp
- Overvoltage protection: ≤35 V DC
- Control deviation: <1% (static load 10–90%) / <2% (dynamic)
- Short-circuit proof (HICCUP characteristic)
- No-load power consumption: <0.3 W
- Parallel connection for redundancy or higher capacity, and series connection, both possible
Signalling
- Status LED
General Data
- Connection: screw connection (M3), 0.2–2.5 mm² (AWG 24–14)
- Mounting: DIN rail NS 35, horizontal; 0 mm clearance left and right, 30 mm top and bottom
- Housing: polycarbonate, UL 94 V0
- Degree of protection: IP20
- Protection class: II (in closed control cabinet)
- MTBF (IEC 61709, SN 29500): >785,000 h at 40 °C
- Ambient temperature (operation): -25 °C to +70 °C, derating 2.5%/K above +55 °C
- Start-up: type-tested at -40 °C
- Storage temperature: -40 °C to +85 °C
- Dimensions (W × H × D): 35 × 90 × 84 mm
- Weight: approx. 207 g
Approvals and Standards
- UL 508, UL 60950-1, UL 1310 (NEC Class 2)
- CSA C22.2 No. 107.1-01
- Class I, Division 2, T4A (hazardous locations)
- IECEE CB Scheme, EAC
- SEMI F47
- IEC 62368-1 (SELV), EN 60204-1 (PELV), EN 61558-2-16
- EN 55011 / EN 55022 Class B (emissions)
Typical Applications
- 24 V DC supply in small control boxes and distribution boards
- Small PLCs, relays, sensors and signal circuits
- Building automation and HVAC controls
- Direct replacement of 2902992 units in existing installations
Buy the Phoenix Contact 2902992 from Atlantech Drives
Atlantech Drives supplies the Phoenix Contact 2902992 UNO-PS/1AC/24DC/60W with fast worldwide shipping and a 12-month warranty. Our experienced sales team can also quote other UNO, TRIO and QUINT power supplies. Request a quote today for price and availability.
More Phoenix Contact Products
- 2907074 Phoenix Contact QUINT4-UPS/24DC/20A
- 2907069 Phoenix Contact QUINT4-UPS/24DC
- 2905629 Phoenix Contact MINI MCR-2-RPSS-I-2I-PT
- All Phoenix Contact products
Manufacturer website: Phoenix Contact
