Phoenix STEP-PS/ 1AC/15DC/4 Power Supply
The Phoenix STEP-PS/ 1AC/15DC/4 Power Supply (Item No: 2868619 ) offers a 85 V AC ... 264 V AC input voltage range, > 87 % (for 230 V AC and nominal values) efficiency, 15 V DC nominal output voltage, 4 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/15DC/4 |
Phoenix STEP-PS/ 1AC/15DC/4 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 | > 87 % (for 230 V AC and nominal values) |
| Nominal output voltage | 15 V DC |
| Nominal output current (IN) | 4 A (-25 °C ... 55 °C) |
| Residual ripple | < 55 mVPP (20 MHz) |
| Power loss nominal load max. | 8.6 W |
| Insulation voltage input/output | 3.75 kV AC (routine 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/15DC/4 (Item No: 2868619) is engineered for high reliability and energy efficiency in demanding environments. It supports a wide input voltage range from 85 V AC to 264 V AC, suitable for global power grids. This model outputs a regulated 15 V DC at 4 A, with a residual ripple under 55 mVPP, ensuring clean and stable voltage for sensitive electronics. The efficiency exceeds 87% at 230 V AC, minimizing energy waste and heat generation. With inrush current less than 15 A and power loss under 8.6 W at full load, the power supply remains cool and consistent during continuous operation. Its 3.75 kV AC insulation between input and output enhances safety, while the IP20 housing and DIN rail mounting make it easy to install in control cabinets. It operates from -25°C to +70°C with derating above 55°C at 2.5% per K. Fully compliant with EN 61000-6-3 and EN 61000-6-1, it meets both emission and immunity EMC standards.
The STEP-PS/1AC/15DC/4 is commonly used in PLCs, HMI panels, signal amplifiers, and communication modules that require a 15 V DC source. In real-world use, maintenance teams benefit from its easy DIN rail installation and strong resilience in fluctuating temperatures. It supports critical processes like relay actuation, small motor control, and modular device powering in machine panels. For engineers working on legacy or special-purpose control systems that require 15 V instead of the standard 12 or 24 V, this model fills the exact gap with reliable performance. Engineering students can also reference this product to understand industrial-grade low-voltage distribution. With Phoenix Contact's reputation for durability and innovation, this STEP Power Supply is a trusted choice across many industries.
For complete technical documentation, datasheets, and certifications, visit the official product page here: STEP-PS/1AC/15DC/4 – Phoenix Contact (Item No: 2868619).
