Phoenix Contact 2902991 UNO-PS/1AC/24DC/ 30W Power supply

The Phoenix Contact UNO-PS/1AC/24DC/30W is a primary-switched DIN rail power supply from the UNO POWER family, delivering 24V DC at 1.25A (30W) from a universal 1-phase AC input of 85-264V AC. With up to 88% efficiency and idle losses below 0.3W, it is suited for energy-efficient, space-saving installation in compact control cabinets.

Technical specifications:

• Part designation: UNO-PS/1AC/24DC/30W
• Catalog number: 2902991
• Manufacturer: Phoenix Contact
• EAN: 4046356729192
• Product family: UNO POWER
• Input: 85-264V AC (nominal 100-240V AC), 50-60 Hz, 1-phase
• Output: 24V DC / 1.25A / 30W
• Efficiency: 87% (120V AC) / 88% (230V AC)
• Residual ripple: < 60 mVPP; OVP threshold: 35V DC
• Connection: Screw, 0.2-2.5 mm² (AWG 24-14), stripping length 8mm, M3, 0.5-0.6 Nm
• Mounting: DIN rail NS 35 (EN 60715), dimensions 22.5 x 90 x 84mm (W x H x D)
• Weight: 147g (excluding packaging)
• Operating temperature: -25°C to +70°C (derating above 55°C: 2.5%/K)
• Storage temperature: -40°C to +85°C
• Protection: IP20, Protection class II, insulation voltage 4 kV AC (type test)
• Housing material: Polycarbonate (PC), UL 94 V0
• MTBF: > 1,158,000h at 40°C (IEC 61709, SN 29500)
• Pack size: 1 pc

Features and benefits:

• Up to 20% higher power density saves space in compact control boxes
• Wide -25°C to +70°C operating range supports outdoor installation
• Short-circuit proof with HICCUP output characteristic for safe fault handling
• Parallel connection supported for redundancy or increased output capacity
• Snap-on DIN rail mounting for fast, straightforward installation
• Internal 2A slow-blow fuse; recommended upstream breaker 6-16A (B, C, D, K characteristics)

Applications:

• 24V DC power supply in compact industrial and building automation control panels
• Redundant power configurations using parallel-connected units
• Outdoor control enclosures requiring wide ambient temperature tolerance
• 24V DC distribution for sensors, actuators, and PLCs in space-constrained enclosures

Compliant with EN 60715 (DIN rail mounting), EN 60721 climatic class 3K22, and UL 94 V0 flammability rating. Part of the Phoenix Contact UNO POWER primary-switched power supply family.

Also known as: Phoenix Contact UNO-PS/1AC/24DC/30W, Phoenix 2902991, Phoenix Contact 30W DIN rail PSU, UNO POWER 24VDC power supply.