Switching buffered power supply for built-in PSB 54V/5A PSB-48V5A

Buffered power supply for security and CCTV systems

This Pulsar PSB-48V5A switch-mode buffered power supply is a reliable power source for alarm systems, video surveillance, access control and other devices requiring a stable 48V DC voltage. It provides uninterrupted power, protecting against the effects of mains voltage failures. The device is designed for built-in installation, allowing for discreet integration with existing infrastructure.

Key features and applications

The PSB-48V5A power supply provides 54V DC voltage with a maximum output current of 5A. This makes it ideal for systems requiring more power, such as advanced IP cameras or extended alarm panels. The built-in battery charging circuit (with adjustable settings: 0.5A, 1A or 2A) allows the system to continue operating in the event of a mains power failure. A wide input voltage range (200-240V AC) ensures compatibility with various electrical installations.

• Safety first: The power supply is equipped with comprehensive protections: short-circuit (SCP), overload (OLP), overvoltage (OVP) and over-discharge (UVP).
• High efficiency: Efficiency at 87% translates to lower energy losses and lower operating costs.
• Forced cooling: The built-in fan provides effective heat dissipation, guaranteeing stable operation even under heavy load.
• Optical signaling: An LED indicates the presence of AC voltage and the battery charging status.
• Flexible mounting: Possibility of built-in mounting or on a DIN rail (DIN4 bracket required).

Technical parameters and construction

The power supply is characterized by a solid construction and high quality workmanship. The housing dimensions are 237 x 168 x 54 mm (+/-2mm), which facilitates its integration with existing systems. The use of a PFC circuit (Power Factor Correction) improves energy efficiency and minimizes interference in the electrical network. I/O PCB connectors allow connection of wires with a cross-section from 0.5 to 2.5 mm².

The PSB-48V5A power supply draws voltage in the range of 200 to 240 V AC and provides an output voltage of 54 V DC with a maximum current of 5 A. Its power is 270 W, and the efficiency reaches 87%. The battery charging current can be adjusted in the range of 0.5 A to 2 A using a jumper. The dimensions of the device are 237 x 168 x 54 mm (+/-2mm).

The PSB-48V5A power supply is an investment in reliable and safe power for your security or video surveillance system. Thanks to its functionality and solid construction, it will ensure long-term and trouble-free operation.