Switched-Mode Buffer Power Supply PULSAR HPSG2-12V20A — 12 V DC, 20 A output

PULSAR HPSG2-12V20A is a switched-mode buffer power supply that delivers a regulated 12 V DC output with a maximum current of 20 A. It is intended for continuous powering of low-voltage devices and systems where stable voltage and backup capability are required. The unit is designed for installation in professional security and surveillance setups and supports connection of a backup battery to provide uninterrupted operation during mains interruptions.

Advantages

The design of this switched-mode buffer power supply provides efficient energy conversion and compact installation footprint while maintaining stable 12 V output under varying loads. Built-in buffering functionality allows seamless transition to battery power when mains supply fails, reducing downtime for connected devices. The product integrates typical protection features to guard against overload and short-circuit conditions, and its construction is suitable for standard mounting in equipment racks or enclosures used in security and access control installations.

Suitable for

• Powering CCTV cameras and video recorders that require a reliable 12 V DC supply
• Supplying access control panels, electric locks and related low-voltage security devices
• Providing backup power for alarm systems and detectors
• Feeding network devices and peripheral equipment in small to medium professional installations

Key specifications

• Output voltage: 12 V DC (regulated)
• Maximum output current: 20 A
• Switched-mode topology for improved efficiency
• Buffer/backup operation with external battery support
• Protections: overload and short-circuit protection
• Designed for professional mounting in security and electronics enclosures

How to use

Install the unit in a suitable enclosure or rack location with proper ventilation and mechanical support. Connect the mains input according to local electrical regulations and wire the 12 V DC outputs to the device(s) to be powered, observing correct polarity. If backup capability is required, connect a compatible lead-acid or sealed battery to the designated battery terminals following the manufacturer’s battery connection instructions. Verify output voltage and polarity before connecting sensitive equipment and test battery switchover under controlled conditions to confirm uninterrupted operation.

Usage recommendations

Place the power supply in a dry, ventilated area away from direct heat sources. Use appropriately rated battery and wiring to match the 20 A capacity and minimize voltage drop. Periodically inspect connections and battery condition; replace batteries according to their service life to ensure reliable buffered operation.