Buffered switch-mode power supply for built-in Grade 2, PSG2 13.8V/2A PSG2-12V2A

Buffered switch-mode power supply for security systems

This buffered power supply from PULSAR, model PSG2-12V2A, is a reliable power source for alarm systems (SSWiN) and access control systems (ACS). Designed for continuous operation, it provides a stable 13.8V DC voltage with a maximum output current of 2.5A. This makes it ideal for securing facilities and ensuring the continuous operation of critical devices.

The PSG2-12V2A power supply complies with EN50131 (Grade 2 for alarm systems) and EN60839-11 (Grade 2 for access control systems) standards, guaranteeing its high quality and reliability. The device's construction has been carefully designed for easy mounting – it can be mounted in an enclosure or on a DIN rail (using an optional bracket).

• Versatility: The power supply supports both buffered operation (with mains power) and battery operation (in the event of a mains power failure). In battery mode, the output voltage is maintained within the range of 10-13.8V DC.
• Safety: Built-in protections protect against overload (OLP), short circuit (SCP), overvoltage (OVP), and excessive battery discharge (UVP). Additionally, it has a fuse protecting the battery against reverse polarity.
• Efficiency: An efficiency level of 86% translates to lower energy losses and lower operating costs.
• Signaling: An LED on the PCB indicates the presence of AC voltage and the voltage at the power supply output. Optionally, an external LED optical indicator PKAZ168 can be connected to indicate a battery failure.
• Automatic battery test: The power supply performs an automatic battery status test every 5 minutes, allowing for early detection of potential problems.
• Flexible charging: The battery charging current can be set to 0.5A or 1A using a jumper.

The PSG2-12V2A power supply is a solid solution for professionals involved in the installation of security systems and for users looking for a reliable power supply for their devices. Its compact dimensions (129 x 98 x 40 mm) allow for easy adaptation to different mounting spaces. Remember that the total current drawn by the devices connected to the power supply plus the battery charging current must not exceed the maximum output current of the power supply – i.e. 2.5A.