Phoenix STEP-PS/ 1AC/12DC/1.5 Power Supply
The Phoenix STEP-PS/ 1AC/12DC/1.5 Power Supply (Item No: 2868567 ) offers a 85 V AC ... 264 V AC input voltage range, > 84 % (for 230 V AC and nominal values) efficiency, 12 V DC nominal output voltage, 1.5 A (-25 °C ... 55 °C) 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 | STEP-PS/ 1AC/12DC/1.5 |
Phoenix STEP-PS/ 1AC/12DC/1.5 Power Supply – Technical Specifications
| Specification | Value |
|---|---|
| Nominal input voltage range | 100 V AC ... 240 V AC |
| Input voltage range | 85 V AC ... 264 V AC |
| Inrush current | < 15 A (typical) |
| Efficiency | > 84 % (for 230 V AC and nominal values) |
| Nominal output voltage | 12 V DC |
| Nominal output current (IN) | 1.5 A (-25 °C ... 55 °C) |
| Residual ripple | < 75 mVPP (20 MHz) |
| Power loss nominal load max. | < 3.2 W |
| Insulation voltage input/output | 4 kV AC (type test) |
| Mounting type | DIN rail mounting |
| Degree of protection | IP20 |
| Ambient temperature (operation) | -25 °C ... 70 °C (> 55° C derating : 2.5%/K) |
| EMC requirements for noise emission | EN 61000-6-3 |
| EMC requirements for noise immunity | EN 61000-6-1 |
The Phoenix STEP Power Supply STEP-PS/1AC/12DC/1.5 (Item No: 2868567) is a 12 V primary switched-mode power supply built for modern control systems. It operates across an input voltage range of 85 V AC to 264 V AC and delivers a consistent 12 V DC output at 1.5 A, with low residual ripple under 75 mVPP. With an efficiency of over 84% at 230 V AC, this unit supports energy-conscious applications. The power loss stays below 3.2 W, and it maintains operational reliability over a wide temperature range of -25 °C to +70 °C with a derating curve starting at 55 °C.
This model features DIN rail mounting for quick panel integration, IP20 protection, and a 4 kV AC insulation voltage for electrical safety. It complies with EMC standards EN 61000-6-1 and EN 61000-6-3, offering noise immunity and low emissions, even in demanding factory settings. Its inrush current is limited to under 15 A, making it suitable for installations with circuit protection constraints. The robust design ensures stable output for delicate devices and consistent performance across diverse input conditions.
The STEP-PS/1AC/12DC/1.5 is widely used in compact control panels, powering signal conditioners, relay modules, and temperature controllers. Maintenance engineers prefer this unit for its easy replacement and stable output during retrofits, while OEM designers rely on it for integrating clean 12 V DC into small machines. The compact size, high efficiency, and 1.5 A capacity make it suitable for a wide range of applications in building automation, machine tool control, and test rigs. Phoenix Contact Official Product Page.
