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Phoenix STEP3-PS/1AC/24DC/2.5/PT Power Supply
The Phoenix STEP3-PS/1AC/24DC/2.5/PT Power Supply (Item No: 1088491 ) offers a 110 V DC ... 250 V DC -20 % ... +40 % input voltage range, > 89 % (120 V AC) efficiency, 24 V DC nominal output voltage, 2.5 A nominal output current. Manufactured by Phoenix under the Phoenix Power Supply category, this model belongs to the Phoenix STEP Series.
| Brand | Phoenix Contact |
| Product Type | Power Supply |
| Model Number | STEP3-PS/1AC/24DC/2.5/PT |
Phoenix STEP3-PS/1AC/24DC/2.5/PT Power Supply – Technical Specifications
| Specification | Value |
|---|---|
| Input voltage range | 110 V DC ... 250 V DC -20 % ... +40 % |
| Inrush current | typ. 28 A (25 °C) |
| Efficiency | > 89 % (120 V AC) |
| Nominal output voltage | 24 V DC |
| Nominal output current (IN) | 2.5 A |
| Residual ripple | typ. 100 mVPP |
| Short-circuit-proof | yes |
| Power loss nominal load max. | < 6.2 W (230 V AC) |
| Insulation voltage input/output | 4 kV AC (type test) |
| Mounting type | DIN rail or direct mounting |
| Degree of protection | IP20 |
| Ambient temperature (operation) | -10 °C ... 70 °C (Derating: > 50 °C; 2 %/K) |
| Frequency range (fN) | 50 Hz ... 60 Hz ±10 % |
The Phoenix Contact STEP3-PS/1AC/24DC/2.5/PT (Item No: 1088491) is an efficient and compact STEP Power Supply designed for reliability and durability in modern control systems. It operates within a wide input range of 110 V DC to 250 V DC, ensuring steady output under fluctuating power conditions. With a nominal 24 V DC output at 2.5 A, it provides sufficient current for PLCs, sensors, and logic modules. The efficiency exceeds 89% at 120 V AC, reducing power losses and keeping internal temperatures low. Built with 4 kV AC insulation between input and output, it safeguards sensitive components while ensuring user safety. Typical residual ripple is around 100 mVPP, maintaining clean and stable output for precise electronic performance. Designed for long-term reliability, it functions between -10 °C to 70 °C, with derating above 50 °C to protect against heat stress. The unit supports both DIN rail and direct mounting with an IP20 protection rating, making it ideal for space-limited control cabinets and enclosed machinery.
Engineers choose the STEP3-PS/1AC/24DC/2.5/PT Power Supply for its ability to deliver consistent performance in PLC-based automation panels, sensor networks, and building control systems. It supports smooth 24 V DC distribution in machine control circuits, conveyors, and compact automation setups that demand efficiency and safety. The Phoenix STEP3-PS-1AC-24DC-2-5-PT is valued for its space-saving design and stable power delivery, which prevent voltage fluctuations that can cause downtime. Maintenance professionals trust its rugged construction and short-circuit-proof operation for round-the-clock reliability. From panel builders to automation OEMs, the 1088491 Phoenix model proves dependable across diverse industrial conditions. Its precise power regulation and strong thermal performance make it a preferred choice for plants that prioritize equipment protection and energy efficiency. For lasting performance and easy integration, the phoenix contact 1088491 remains a trusted solution among distributors and automation system designers.
The Phoenix STEP Power Supply series represents German engineering excellence, combining efficiency, compactness, and long-term dependability. This High Current Power Supply model, STEP3-PS/1AC/24DC/2.5/PT, is engineered for modern automation systems requiring stable 24 V DC output. Backed by the heritage of Phoenix Contact, the STEP3-PS-1AC-24DC-2-5-PT-1088491 offers superior thermal management, low energy loss, and excellent EMC compliance. The STEP3-PS family is trusted by system integrators and panel builders for its precision and ease of installation. From assembly lines to building automation projects, the 1088491 Phoenix Contact Power Supply ensures reliable performance with verified global certifications and robust engineering standards that reinforce EEAT authority for automation applications.
