PULSAR AWZG2-12V3A-C Buffer Power Supply 12V DC 3A Grade 2

Unlike standard power supplies that drop connected equipment during mains failure, the PULSAR AWZG2-12V3A-C Buffer Power Supply is engineered to keep security and access control systems running without interruption. This Grade 2 certified unit automatically switches to a backup battery within milliseconds of an AC outage, ensuring cameras, alarms, and door controllers stay operational. Its adjustable output voltage and comprehensive protection suite make it a dependable core for professional installations.

Highlights

• EN 50131 Grade 2 certified for alarm systems
• 12V DC output, adjustable from 11V to 13.8V
• Total output current of 3A (2.5A load + 0.5A battery charging)
• Built-in protections: short circuit, overload, overvoltage, undervoltage, overheating, battery deep discharge, and tamper
• LED indicators for AC, DC, and battery status
• Surface-mount metal enclosure (RAL9003)

In daily use

Install this buffer supply in security control panels, CCTV hubs, or access control systems. The screw terminals allow secure wiring, while the tamper output integrates with alarm monitoring. With an operating temperature range of -10°C to +40°C, it suits indoor environments. The recommended 7Ah or 17Ah lead-acid battery ensures reliable backup during outages, and the automatic switchover provides uninterrupted power to connected devices.

Full specifications

• Input voltage range: 176-264V AC
• Input frequency: 50/60 Hz
• Output voltage: 12V DC (adjustable 11-13.8V)
• Total output current: 3A
• Load output current: 2.5A
• Battery charging current: 0.5A
• Recommended battery: 12V lead-acid (SLA), 7Ah or 17Ah
• Protections: SCP, OLP, OVP, UVP, OHP, battery deep discharge, tamper
• Efficiency: approximately 80%
• Operating temperature: -10°C to +40°C
• Enclosure material: Metal (RAL9003)
• Mounting type: Surface mount
• Status indicators: AC, DC, battery (LEDs)
• Output terminals: Screw terminals

Final note

For installers who need a certified, no-nonsense buffer power supply, the AWZG2-12V3A-C delivers consistent performance and peace of mind in a compact metal housing.