Phoenix STEP3-PS/1AC/5DC/3/PT Power Supply
The Phoenix STEP3-PS/1AC/5DC/3/PT Power Supply (Item No: 1170954 ) offers a 110 V DC ... 250 V DC -20 % ... +10 % input voltage range, > 82 % (120 V AC) efficiency, 5 V DC nominal output voltage, 3 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/5DC/3/PT |
Phoenix STEP3-PS/1AC/5DC/3/PT Power Supply – Technical Specifications
| Specification | Value |
|---|---|
| Input voltage range | 110 V DC ... 250 V DC -20 % ... +10 % |
| Inrush current | typ. 30 A (25 °C) |
| Efficiency | > 82 % (120 V AC) |
| Nominal output voltage | 5 V DC |
| Nominal output current (IN) | 3 A |
| Residual ripple | typ. 150 mVPP |
| Short-circuit-proof | yes |
| Power loss nominal load max. | < 3.2 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 Phoenixcontact STEP3-PS/1AC/5DC/3/PT (Item No: 1170954) is a compact 5 V DC 3 A Step Power Supply engineered for efficient operation in modern control cabinets. It supports an input voltage range of 110 V DC to 250 V DC, ensuring reliable performance under varying supply conditions. With an efficiency of over 82 % at 120 V AC, this phoenix contact 1170954 minimizes energy loss while maintaining consistent power output. The unit delivers 5 V DC at 3 A with a typical residual ripple of 150 mVPP, guaranteeing smooth current delivery for sensitive devices. The step3-ps-1ac-5dc-3-pt-1170954 also features strong 4 kV AC insulation between input and output, IP20 protection, and short-circuit-proof circuitry for long-term durability. Its DIN rail or direct mounting design enables quick installation, while the operational temperature range of -10 °C to 70 °C with 2 %/K derating above 50 °C ensures reliable use even in harsh environments. With a maximum power loss below 3.2 W, it offers optimal thermal balance for continuous industrial operation.
The Phoenixcontact STEP3-PS/1AC/5DC/3/PT (Part No: 1170954) is widely used in automation systems, control circuits, and instrumentation where low-voltage precision power is essential. It efficiently powers logic modules, communication devices, and embedded controllers that operate on 5 V DC supply. Panel builders appreciate its compact size and clean DC output, which helps protect microcontrollers and I/O modules from electrical noise. Maintenance engineers rely on its steady output and EMC compliance in production plants, ensuring stable operation of sensitive electronics even under load variations. The step3-ps/1ac/5dc/3/pt phoenix contact design reflects dependable performance, superior build quality, and the reliability required in high-uptime environments. Its combination of energy efficiency, low ripple, and strong insulation makes it a trusted choice for industrial control panels, OEM projects, and distributed power applications across automation sectors.
The STEP3-PS/1AC/5DC/3/PT Power Supply from Phoenixcontact (Item No: 1170954) ensures clean and efficient 5 V DC output for automation and process control systems. This phoenix step3-ps/1ac/5dc/3/pt delivers strong electrical protection and stable voltage regulation for sensors, relays, and digital logic units. The 1170954 phoenix contact model is built for space-saving DIN rail integration and meets international safety and EMC standards. As part of the STEP Power Supply series, it provides industrial buyers with a reliable, compact, and energy-efficient power solution suitable for small-scale automation environments.
