Switching buffered power supply HPSB 54V/3A/4x7Ah HPSB-48V3A-B

Highly reliable backup power supply for security and automation systems.

The Pulsar HPSB-48V3A-B buffer power supply is designed to provide uninterrupted power to alarm systems, access control, video surveillance and other devices requiring a stable 48V DC voltage. The power supply design allows for the connection of four 12V batteries, creating a reliable backup power source in the event of a mains power failure. This ensures that systems remain in full operational readiness even during power outages.

Construction and functionality

The HPSB-48V3A-B power supply is characterized by high efficiency (90%) and a solid construction. The housing made of DC01 steel (painted white – RAL9003) ensures durability and resistance to mechanical damage. Inside there is space for four batteries with a capacity of 7Ah each (battery compartment dimensions: 325 x 178 x 168 mm). Surface mounting allows for easy installation in various locations. Additionally, the power supply has an anti-tamper protection in the form of a microswitch, which signals an attempt to open the housing.

The power supply offers flexibility in choosing the battery charging current – it can be switched between 0.5A and 1A using a jumper. Optical LED signaling informs about the device's operating status. In the event of a failure, built-in protections (SCP, OLP, OVP, UVP) protect both the power supply and connected devices from damage. The output current is 2.5A + 0.5A battery charging or 2A + 1A battery charging - the total current of receivers with battery charging should not exceed 3A.

Key features and benefits

• Reliable backup power: Ensures the continuity of operation of security and automation systems even during power outages.
• High efficiency: Efficiency at 90% minimizes energy losses and reduces operating costs.
• Versatility: The ability to choose the battery charging current (0.5A/1A) adapts the power supply to different types of batteries and application requirements.
• Solid construction: Durable steel housing provides durability and resistance to mechanical damage.
• Safety: Built-in protections protect against short circuits, overload, overvoltage and excessive battery discharge.
• Easy installation: Surface mounting simplifies integration with existing systems.
• Operating status indication: LEDs inform about the correct operation of the device and any failures.
• Anti-tamper protection: A microswitch signals an attempt to open the housing, increasing the level of installation security.

The Pulsar HPSB-48V3A-B power supply is an optimal solution for professionals involved in the installation of security systems and for users looking for a reliable backup power source for their devices.