During technical comparisons, STEP3-PS-1AC-12DC-2-5-PT appears alongside SMPS Phoenix, Phoenixcontact Essential Ps 1Ac 24Dc 240W Ee and Selec Power Supply so engineers assess signal types, ingress protection, and ambient tolerances accurately.
Phoenix STEP3-PS/1AC/12DC/2.5/PT Power Supply
The Phoenix STEP3-PS/1AC/12DC/2.5/PT Power Supply (Item No: 1170953 ) offers a 110 V DC ... 250 V DC -20 % ... +10 % input voltage range, > 87 % (120 V AC) efficiency, 12 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/12DC/2.5/PT |
Phoenix STEP3-PS/1AC/12DC/2.5/PT Power Supply – Technical Specifications
| Specification | Value |
|---|---|
| Input voltage range | 110 V DC ... 250 V DC -20 % ... +10 % |
| Inrush current | typ. 35 A (25 °C) |
| Efficiency | > 87 % (120 V AC) |
| Nominal output voltage | 12 V DC |
| Nominal output current (IN) | 2.5 A |
| Residual ripple | typ. 100 mVPP |
| Short-circuit-proof | yes |
| Power loss nominal load max. | < 3.9 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 % |
Phoenix Contact STEP3-PS/1AC/12DC/2.5/PT (Item No: 1170953) delivers a stable 12 V DC output at 2.5 A, engineered with short-circuit protection and energy efficiency exceeding 87% at 120 V AC. Designed for flexibility, it accepts 110 V DC to 250 V DC input and maintains low ripple at typ. 100 mVPP. Its thermal tolerance ranges from -10 °C to 70 °C, with derating after 50 °C. An insulation voltage of 4 kV AC and compliance with EN 61000-6-1 and EN 61000-6-3 standards ensure operational safety in harsh industrial environments.
Mounting is flexible via DIN rail or direct installation, and the power loss stays under 3.9 W at nominal load, making it ideal for compact panels and control cabinets. This Phoenix Contact power supply supports consistent operation of sensors, relays, small PLC modules, and auxiliary electronics, especially in automation and process control applications.
Trusted for reliability, thermal resilience, and compact design, the STEP3-PS/1AC/12DC/2.5/PT (Item No: 1170953) stands out in maintenance-heavy environments across Indian factories. Applications span across industrial control panels, safety circuits, and process automation. View Product on Phoenix Contact Website. Keywords: STEP Power Supply, 12V DC power supply, DIN rail mounting, Phoenix Contact power supply.
