Extralink Power supply AD-55B 24V/27.6V 55W Grey Metal Housing

The Extralink Power supply AD-55B 24V/27.6V 55W is a buffer power supply designed to convert 230 V mains AC to DC and provide uninterrupted power to connected equipment. It accepts connection of an external battery so that, in the event of a mains outage, the unit can draw energy from the battery to maintain operation of the receiving device. The unit has a metal perforated housing for improved airflow and compact dimensions suitable for various installations.

Advantages

The perforated metal housing improves cooling by facilitating airflow. Screw terminals are clearly marked to simplify cable connections according to electrical practices. An adjustable potentiometer allows the installer to fine-tune the output voltage within the specified range. The device supports external battery connection for backup power, enabling continuity of operation during mains interruptions.

Suitable for

• Powering surveillance cameras and access control panels
• Supplying small network devices and routers
• Providing backup power for alarm systems

Key specifications

• Model: Extralink AD-55B (EX.14114)
• Output voltage: 24 V / 27.6 V DC (adjustable)
• Power output: 55 W
• AC input voltage: 100–240 V
• Housing: grey perforated metal
• Weight: 0.466 kg
• EAN: 5903148914114

How to use

Mount the unit in a well-ventilated location and connect the AC input to a suitable 100–240 V supply following local electrical regulations. Connect the DC output to the receiving device using the marked screw terminals. If backup is required, connect a compatible external battery to the designated terminals following polarity and battery manufacturer instructions. Use the onboard potentiometer to adjust the output voltage to the required level before placing the device into service.

Recommendations

Install the power supply in a dust-free, ventilated area and ensure secure, correct wiring. Use a battery with appropriate voltage and capacity for backup; verify polarity and secure connections. Periodically check terminal tightness and ventilation openings for dust buildup to maintain reliable operation.