Switched-mode buffer power supply PULSAR HPSB-12V3A-B 12 V 3 A

The PULSAR HPSB-12V3A-B switched-mode buffer power supply provides a regulated 12 V DC output with up to 3 A continuous current and includes an integrated buffer for short mains interruptions. Designed for reliable operation in security and electronic systems, this compact unit can be mounted on a DIN rail or inside an enclosure to deliver stable power to devices such as access control panels, alarm control units and CCTV cameras. The supply emphasizes energy-efficient switching regulation and buffering to improve overall system uptime during brief power dips.

Advantages

The PULSAR HPSB-12V3A-B combines a compact footprint with switching efficiency to reduce heat generation and energy loss. Its buffering capability preserves device operation through short mains interruptions and reduces the risk of false alarms or system resets. The unit is adaptable to standard mounting options, making integration into existing cabinets or DIN-rail systems straightforward. Built-in protections and regulated output support predictable behavior across a range of connected loads.

Suitable for

• Powering access control panels and electronic locks
• Supplying alarm control panels and sensors
• Feeding CCTV cameras and small video devices
• Backup buffering for small automation and monitoring equipment

Key specifications

• Output voltage: 12 V DC
• Maximum output current: 3 A
• Switched-mode (SMPS) topology for efficient regulation
• Integrated buffer function for short mains interruptions
• Compact design suitable for DIN-rail or enclosure mounting
• Typical protections: overload and short-circuit protection (functional characteristic)

How to use

Install the unit on a compatible DIN rail or secure it inside an electrical enclosure according to local wiring regulations. Connect the AC input to a suitable mains supply and the DC output to the device or distribution bus requiring 12 V. Ensure correct polarity on the DC terminals and verify that the total connected load does not exceed the 3 A maximum. If the system includes batteries or additional buffering, follow the manufacturer instructions for battery connection and charging management to maintain safe operation.

Usage recommendations

For reliable operation, place the power supply where it has adequate ventilation and is protected from moisture and dust. Periodically inspect wiring and terminal connections for corrosion or looseness. When used in security or CCTV systems, allow headroom between expected load and the 3 A limit to account for inrush currents and future expansions.