Phoenix TRIO-PS/1AC/48DC/ 5 Power Supply
The Phoenix TRIO-PS/1AC/48DC/ 5 Power Supply (Item No: 2866491 ) offers a 100 V AC ... 240 V AC nominal input voltage range, > 89 % (for 230 V AC and nominal values) efficiency, 48 V DC ±1 % nominal output voltage, 5 A (-25 °C ... 55 °C) nominal output current. Manufactured by Phoenix under the Phoenix Power Supply category, this model belongs to the Phoenix TRIO Series.

| Brand | Phoenix Contact |
| Product Type | Power Supply |
| Model Number | TRIO-PS/1AC/48DC/ 5 |
Phoenix TRIO-PS/1AC/48DC/ 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 (derating < 90 V AC: 2.5 % per Kelvin) |
| Inrush current | < 15 A |
| Efficiency | > 89 % (for 230 V AC and nominal values) |
| Nominal output voltage | 48 V DC ±1 % |
| Nominal output current (IN) | 5 A (-25 °C ... 55 °C) |
| Residual ripple | < 50 mVPP |
| Power loss nominal load max. | 28 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 Contact TRIO-PS/1AC/48DC/5 (2866491) delivers consistent and energy-efficient performance for automation and process-control environments. This TRIO Power Supply operates on a wide input range from 85 V AC to 264 V AC, providing flexible compatibility for varied industrial conditions. It produces a steady 48 V DC ±1% output at 5 A, ensuring clean and uninterrupted power delivery to sensitive devices such as PLCs, I/O modules, sensors, and communication interfaces. The efficiency surpasses 89% at 230 V AC, reducing cabinet heating and operational costs. Residual ripple below 50 mVPP maintains signal stability, making it ideal for precision instruments. Built with DIN rail mounting and an IP20-rated enclosure, the unit offers easy installation and reliable protection in panel assemblies. With insulation strength up to 4 kV AC and compliance to EN 61000-6-1 and EN 61000-6-3 EMC standards, it guarantees safety and electromagnetic compatibility in electrically dense areas. The TRIO-PS-1AC-48DC-5-2866491 supports a temperature range from -25 °C to +70 °C, with derating above 55 °C at 2.5% per K, making it suitable for both controlled and semi-harsh environments. Its compact design, low inrush current (<15 A), and long-term reliability make it a trusted 48 V power supply for Indian automation engineers and OEMs.
The Phoenix Contact TRIO-PS/1AC/48DC/5 is widely used in automation panels, machine tools, packaging systems, and power distribution modules requiring stable 48 V DC power. It ensures high reliability in factory floors where continuous operation is essential for PLCs, sensors, and field controllers. Maintenance teams prefer this TRIO Power Supply for its excellent load regulation, long service life, and low heat dissipation. The model’s design supports industries like automotive, process automation, water treatment, and renewable energy, providing consistent performance even under fluctuating line conditions. System integrators value the TRIO-PS-1AC-48DC-5 for its compatibility with existing Phoenix Contact wiring accessories and ease of integration within standard DIN rail enclosures. Its dependable voltage stability protects downstream devices from surge impacts, ensuring minimal downtime and maintenance. Engineers trust the Phoenix Contact 2866491 for its engineering precision, safety certifications, and energy efficiency in demanding plant operations.
The Phoenix TRIO Power Supply series is engineered to meet global standards for automation reliability. The TRIO-PS/1AC/48DC/5-2866491 provides robust output with high electrical isolation, supporting both AC and DC input lines. This model is part of the advanced AC DC TRIO Power Supplies family, known for long-term durability and clean voltage regulation. Industrial buyers recognize Phoenix Contact 2866491 as a dependable choice for powering mission-critical devices. From compact control cabinets to large process units, the TRIO PS 1AC 48DC Phoenix supply consistently performs with high efficiency and minimal power loss. With strong compliance, proven reliability, and broad input adaptability, this model helps engineers achieve uninterrupted operation and long-term cost savings in automation infrastructures.







