Phoenix Contact STEP3-PS/1AC/12DC/2.5/PT Power Supply

The Applications

1. Compact Control Panel Power for HVAC Systems

Modern HVAC control cabinets are often placed in narrow mechanical rooms, leaving little space for power components. A slim 12 V, 2.5 A power supply is ideal for these conditions, offering reliable output while occupying only a small footprint. Its high efficiency limits heat buildup inside sealed enclosures, protecting sensitive controllers and sensors from overheating. The angled push-in terminals make wiring quick and secure, which is especially valuable when working in tight spaces. With the ability to operate on both AC and DC supply, it simplifies upgrades in older buildings. This compact solution ensures that fans, thermostats, and control circuits receive dependable low-voltage power without complicating the panel layout.

2. Reliable Power for Remote IoT Monitoring Units

Remote monitoring stations that track weather, structural health, or energy usage depend on low-voltage systems that must be both efficient and compact. A 12 V, 2.5 A power supply delivers consistent current for microcontrollers, data loggers, and communication devices. Its extremely low standby losses extend battery life in solar-powered or off-grid applications, while the wide input range makes it adaptable to varying power sources. Engineers benefit from the slim housing, which fits neatly into small enclosures alongside sensors and modems. With simple push-in connections, field installation is faster and more reliable. This combination helps remote IoT units operate longer with reduced maintenance requirements.

3. Backup Support in Commercial Lighting Systems

Emergency and safety lighting in offices, hospitals, and warehouses requires secure backup power to keep corridors illuminated during outages. A compact 12 V, 2.5 A power unit can act as a dedicated supply for LED drivers, relays, and control circuits. Its energy-efficient design reduces unnecessary consumption, helping to maximize the lifespan of batteries connected in the system. DIN-rail compatibility allows easy integration into existing distribution boards, while the small form factor prevents crowding in already packed panels. Fast wiring with push-in terminals ensures reliable installation without delays. By combining compact size with dependable output, this supply ensures critical lighting systems stay operational when needed most.

4. Power Conditioning for Industrial Sensor Arrays

Large manufacturing plants rely on distributed sensor networks to track conditions like vibration, temperature, and pressure. Supplying these sensors with stable power is essential to avoid false readings or downtime. A 12 V, 2.5 A supply mounted near the sensor cluster reduces voltage drop across long cable runs and provides clean output free of fluctuations. High efficiency minimizes excess heat in already warm environments, while flexible mounting options allow placement in centralized cabinets or smaller junction boxes. Maintenance teams benefit from the angled push-in terminals, which enable fast re-wiring or expansion. The result is a dependable power source that enhances accuracy and stability across the entire monitoring system.