Fonte de alimentação PULSAR DING2-12V5A — fonte de alimentação comutada com buffer 12 V, 5 A

The PULSAR DING2-12V5A buffered switching power supply delivers a stabilized 12 V DC output with a maximum current of 5 A. Built for continuous powering of low-voltage electronic equipment and security installations, this unit combines a switching regulator with a built-in buffering circuit to support connection of a standby battery. The power supply integrates standard protection features found in PULSAR devices to ensure reliable operation in CCTV, access control, alarm systems and other 12 V installations that require uninterrupted power.

Advantages

The buffered switching design provides stable voltage under varying loads while reducing heat and improving energy efficiency compared with linear power supplies. The unit supports a standby battery connection for buffering, enabling controlled operation during mains interruptions. Integrated protection against short-circuit and overload conditions helps prevent damage to both the supply and connected devices. Compact DIN-rail compatible housing allows neat installation in distribution cabinets or control panels.

Suitable for

Key specifications

How to use

Install the unit on a standard DIN rail inside a distribution cabinet or control enclosure. Connect the AC mains input according to local regulations and the device labeling, then connect the 12 V DC output to the load, observing correct polarity. If battery buffering is required, connect a compatible standby battery to the designated terminals following manufacturer guidelines for battery type and capacity. After connections are verified, apply mains power and check the regulated 12 V output with a multimeter before connecting sensitive equipment.

Recommendations

For reliable long-term operation, use a maintenance-free sealed lead-acid or appropriate VRLA battery of recommended capacity for backup. Ensure adequate ventilation around the unit, avoid mounting near heat sources, and regularly inspect terminals for corrosion and secure connections. Match the total connected load to the 5 A maximum output and allow headroom to prevent continuous operation at the supply limit.