Buffer power supply PULSAR HPSB-12V7A-C 12V 7A, buffered output with battery charging

PULSAR HPSB-12V7A-C is a buffer power supply that provides stable 12 V DC output at up to 7 A with a buffered output and integrated battery charging. It is intended for installations that require continuous power to low-voltage devices such as security panels, access control modules and CCTV cameras. The unit combines a regulated power source with battery backup management to keep connected equipment running during mains outages and to automatically recharge standby batteries.

Advantages

The buffered output ensures uninterrupted voltage to connected devices during brief mains disturbances while the built-in charger maintains the standby battery in ready condition. The power supply features regulated 12 V output with current capacity suitable for multiple low-voltage loads and includes protection mechanisms to limit overload and prevent reverse battery discharge. Compact design and standard mounting options make it suitable for integration into control cabinets and security enclosures.

Suitable for

• Powering alarm control panels and sensors
• Supplying access control systems including electric locks and readers
• Providing continuous power to CCTV cameras and related equipment
• Backup power for communication modules and low-power network devices

Key specifications

• Output voltage: 12 V DC
• Maximum output current: 7 A
• Buffered (battery-backed) output with integrated charging
• Automatic battery charging and maintenance function
• Regulation and protection against overload and reverse polarity
• Suitable for mounting in equipment cabinets or enclosures

How to use

Install the unit according to local electrical regulations and the device mounting instructions, securing it inside a suitable cabinet or enclosure. Connect the mains input to a correctly rated AC supply, connect the 12 V DC outputs to the load wiring, and attach a compatible sealed lead‑acid battery to the provided battery terminals for buffered operation. Verify correct fuse settings and polarity before energising. After initial power-up the charger will maintain the standby battery and the output will supply connected devices with regulated voltage.

Recommendations

Use a sealed lead‑acid battery of appropriate voltage and capacity for the expected backup time, check connections periodically, and ensure ventilation around the unit. For critical installations test the battery and load periodically and replace the battery according to manufacturer lifetime recommendations.