Power Supply Extralink SCP-50-24 27.6V 50W 24V Aluminium

The Extralink SCP-50-24 27.6V 50W 24V Aluminium is a compact buffer power supply designed for 24V systems. It converts 100–240V AC mains into stable DC output and contains a built-in battery charger that allows connection of an external battery to supply connected equipment during mains outages. The unit features passive cooling and an aluminium housing with perforations to support airflow and heat dissipation. Its small footprint (99 mm x 97 mm x 38 mm) and screw terminal connections make it suitable for installation in a variety of electrical and electronic setups.

Advantages

The aluminium housing provides durability and effective thermal conduction while the perforated design improves passive cooling without moving parts. Integrated battery charging functionality ensures continuity of power by switching to an attached battery when mains fail. Screw terminals are clearly marked for safe and correct wiring, and a potentiometer allows fine adjustment of the output voltage within the supported range. Compact dimensions and a lightweight build simplify mounting in constrained spaces.

Suitable for

• Backup power for networking equipment, security systems and access control
• Powering 24V industrial sensors, controllers and low-power devices
• Small UPS setups and battery-backed installations in cabinets or enclosures

Key specifications

• Input voltage range: 100–240V AC
• Nominal output voltage: 24V DC (adjustable up to 27.6V)
• Output power: 50 W
• Built-in battery charger for external battery connection
• Passive cooling with perforated aluminium housing
• Connection type: marked screw terminals
• Dimensions: 99 mm x 97 mm x 38 mm
• Weight: 0.4 kg
• Product colour: aluminium

How to use

Mount the power supply in a well-ventilated location or inside an enclosure that allows airflow through the perforated casing. Connect the AC mains input (100–240V) to the designated screw terminals, then connect the DC output and the external battery according to the polarity markings. Use the provided potentiometer to adjust the output voltage to the required level for your 24V devices, and verify voltage under load. Follow standard electrical safety procedures and ensure fuses or circuit protection are installed as required by local regulations.

Recommendations

Install the unit away from moisture and direct heat sources; allow clearance around the perforated housing for adequate passive cooling. Use an external battery with appropriate capacity and specifications for the expected backup time, and regularly check battery condition and terminal connections. When integrating with critical systems such as security or network equipment, include proper overcurrent protection and periodic testing of the battery backup function.