Safety transformer 230/12-24VAC 25VA ST312

Safety transformers – reliable power supply in your installation

This modular safety transformer from Hager is a key element in power supply systems, providing safe voltage reduction from 230V to 12V or 24V AC. It is an ideal solution for both installers and end-users who need a reliable power source for various devices. The transformer's design is intended for easy mounting on a TH35 rail, which significantly speeds up and simplifies installation work.

Functionality and application

The ST312 transformer is perfect for applications requiring stable and safe power supply for secondary circuits. Its versatility results from the ability to choose the output voltage – 12V or 24V AC – allowing it to be adapted to the specific needs of a given device. Thanks to this, it finds application in home automation systems, low-voltage lighting, as well as powering controllers and other electronic devices. Short-circuit and thermal protection increase safety and protect both the transformer itself and the devices connected to it.

Key features and benefits

• Modular design: Allows for easy mounting on a TH35 rail, saving time and space in the distribution board. A width of 4 modules ensures compact dimensions (70 x 85 x 58 mm).
• Two output voltages: The ability to choose between 12V and 24V AC allows for flexible adaptation to different applications.
• High efficiency: Maximum output power of 25VA with a maximum output current of 3A guarantees a stable power supply to connected devices. Secondary side currents are 2.08A for 12V and 1.04A for 24V, respectively.
• Safety first: Built-in short-circuit and thermal protection protects the transformer and connected devices from damage caused by overload or short circuit.
• Low power loss: Maximum power loss at 1.8W translates to efficient energy use.
• Durable construction: Made of high-quality materials, ensuring long-lasting and reliable operation.
• Compliance with standards: The transformer meets the required safety standards, confirming its high quality and reliability.