Buffered switch-mode power supply for built-in Grade 3, PSG3 13.8V/5A/40Ah PSG3-12V5A-D

Buffered switch-mode power supply for alarm and access control systems.

The PSG3-12V5A-D buffered power supply from Pulsar is a reliable device designed to ensure continuous power supply in burglary alarm and access control systems (SSWiN and KD). The power supply design meets the requirements of EN50131-6 (grade 1-3) and EN60839-11 standards, guaranteeing its proper operation in critical applications. The device is ideal for powering devices requiring stabilized 12V DC voltage.

The PSG3-12V5A-D power supply is characterized by high efficiency (82%) and the ability to work with batteries up to 40Ah in capacity. The built-in battery charging circuit (1.8A) ensures its optimal condition, and the START function allows manual switching to battery power. The implemented protections (SCP, OLP, OVP, UVP) protect both the power supply itself and the connected devices from damage caused by overload, short circuit, or too high or too low voltage.

Key features and benefits:

• Compliance with standards: Meets the requirements of EN50131-6 (Grade 1-3) and EN60839-11 standards, confirming its quality and reliability in security systems.
• Versatility: Designed for SSWiN and KD systems requiring stabilized 12V DC voltage.
• Buffering: Provides uninterrupted power supply in the event of a mains power failure thanks to cooperation with a battery.
• High efficiency: Efficiency at the level of 82% translates to lower energy consumption and less heat loss.
• Protections: Built-in protections protect against overload, short circuit, too high/low voltage, and tampering.
• Signaling: LEDs indicate the operating status of the power supply – presence of mains voltage, battery charging, and any failures.
• OC outputs: Allow remote monitoring of the power supply status via OC type outputs (EPS – AC mains failure, PSU – power supply failure, APS – battery failure).
• Temperature compensation: Automatic battery charging temperature compensation extends its lifespan.

Technical specifications and application:

The PSG3-12V5A-D power supply is used in alarm systems, access control systems, and anywhere a reliable power source is required for key devices. It can be mounted for built-in installation or on a DIN rail (mounting bracket required). Optical LED signaling facilitates diagnostics and monitoring of the device status. The device also has an EXT IN input for connecting external failure sensors. The output current is 5.5A at 13.8V DC (total output current including charging), and the battery charging current is 1.8A. The current consumption of the power supply circuits is a maximum of 30mA. The dimensions of the housing are 200 x 48 x 120 mm (+/-2 mm). The manufacturer's warranty is 3 years from the date of production.