Grade 3 buffered switch-mode power supply, HPSG3 13.8V/3A/17Ah/LCD HPSG3-12V3A-C-LCD

Buffered switch-mode power supply Grade 3 – reliable power supply for security systems

The HPSG3-12V3A-C-LCD buffered power supply is a device designed to provide uninterrupted power to alarm and access control systems. A construction based on solid components and compliance with EN50131-6 and EN60839-11 standards guarantee high reliability and safety of operation. This is an ideal solution for both professional installers and users who value stable and secure operation of security systems.

Functionality and parameters

The HPSG3 power supply offers an output voltage of 13.8V DC with a current of 3A, as well as a battery charging function. Remote monitoring via LAN or RS485 network (requires appropriate modules) allows for current control of the device status and quick response in the event of a failure. The built-in LCD panel makes it easy to read key operating parameters of the power supply, such as voltage, current and battery status. The use of characteristic C allows for smooth starting of devices with a motor, without the risk of unnecessary power disconnection.

• Wide range of applications: ideal for alarm systems (SSWiN) and access control (KD).
• Compliance with standards: meets the requirements of EN50131-6 (Grade 3) and EN60839-11-2 standards, which confirms its high quality and safety.
• Remote monitoring: the ability to connect to a LAN or RS485 network enables remote control of the device status.
• Durable battery: works with batteries with a capacity of up to 17Ah, providing long-lasting backup power.
• Multifunctional LCD panel: displays key operating parameters of the power supply, making diagnosis and maintenance easier.
• Protections: short-circuit protection (SCP), overload protection (OLP), overvoltage protection (OVP) and battery under-voltage protection (UVP) guarantee safe system operation.
• Signaling: optical LED indicators inform about the operating status of the power supply, battery and any failures.
• OC outputs: allow integration with the alarm system and notification of power problems.

Construction and mounting

The power supply is enclosed in a metal housing with an IP44 degree of protection, which ensures resistance to atmospheric conditions and mechanical damage. Surface mounting is simple and intuitive, and the screw-on housing provides additional security. The device is characterized by high efficiency (up to 81%), which translates into energy savings and reduced operating costs. It also has an anti-sabotage protection – tamper, protecting against unauthorized access.