Switched-Mode Buffer Power Supply Pulsar HPSB-12V2A-B 12V 2A, buffered output

The Pulsar HPSB-12V2A-B switched-mode buffer power supply delivers a regulated 12 V DC output with a maximum current of 2 A. Designed as a buffer-type source, it supplies steady voltage to security, telecom and control equipment and supports connection to a backup battery to maintain output during short interruptions. The unit is compact and energy-efficient, intended for installations where a stable 12 V supply with brief backup capability is required.

Advantages

The device offers regulated 12 V output and a 2 A current rating that match common requirements for access control, CCTV cameras and low-power control systems. As a buffered supply it enables temporary hold-up of output when a battery is connected, which helps preserve operation during brief mains failures. Its switched-mode design provides good efficiency and reduced heat generation, while the compact form factor simplifies integration into cabinets and wall-mounted enclosures.

Suitable for

• Powering single-board access control panels and card readers
• Supplying small CCTV cameras and peripheral devices
• Feeding telecom and network equipment requiring 12 V DC
• Providing buffered power for alarm control panels and sensors

Key specifications

• Output voltage: 12 V DC (regulated)
• Maximum output current: 2 A
• Switched-mode (SMPS) topology for improved efficiency
• Buffered output with battery connection support for short-term backup
• Compact enclosure suitable for cabinet or wall mounting
• Intended for continuous operation in indoor electrical installations

How to use

Install the power supply in a dry, ventilated location inside a suitable cabinet or enclosure. Connect the AC mains supply according to local electrical codes and ensure correct earthing. Wire the 12 V DC output to the load using appropriately sized cables and observe correct polarity. If battery buffering is required, connect a compatible sealed lead-acid or AGM battery to the designated battery terminals following the manufacturer’s wiring and safety instructions. Verify output voltage with a multimeter before connecting sensitive equipment.

Usage recommendations

For reliable operation, use the supply within its rated current capacity and avoid continuous operation near the 2 A limit. Provide adequate ventilation around the unit and place batteries in a separate compartment if possible. Regularly inspect wiring and battery condition; replace batteries that show reduced capacity or signs of damage. Follow local regulations for installation and disposal of batteries and electrical equipment.