Pulsar 35537 Switched-mode buffer PSU 13.8V/5A 90-264VAC 87% eff. SCP/OLP/OVP battery backup Power Supply Grade 2

Pulsar HPSB 13.8V/3A/17Ah Switched-Mode Buffer Power Supply (HPSB-12V3A-C) (grade 2)

The Pulsar HPSB-12V3A-C (MPN: 35537) is a high-efficiency switched-mode buffer power supply designed for uninterrupted power delivery to critical electronic systems, including CCTV, access control, and security alarms. This unit converts 230V AC mains power into a stable 13.8V DC output, providing both direct power to connected devices and a dedicated charging circuit for a lead-acid backup battery. In the event of a mains failure, the system instantly switches to battery power without any interruption to the load. Housed in a robust, surface-mounted metal enclosure, the power supply features comprehensive protection against short circuits, overloads, and overvoltage. The enclosure is designed with sufficient internal space to accommodate a 7Ah or 17Ah 12V battery, making it a reliable solution for maintaining 24/7 system integrity.

Technical Specifications

* Input Voltage: 176 264V AC / 50Hz

* Output Voltage (Normal Operation): 13.8V DC (Buffer operation)

* Output Voltage (Battery Mode): 10.0V 13.8V DC

* Output Current: 3.0A (Total capacity for load + battery charging)

* Battery Charging Current: 0.5A or 1.0A (Jumper selectable)

* Supported Battery Capacity: 7Ah / 17Ah (Lead-acid SLA)

* Efficiency: 87%

* Protections: SCP (Short Circuit), OLP (Overload), OVP (Overvoltage), UVP (Deep Discharge)

* Enclosure Material: DC01 Steel Plate (0.7mm), Powder Coated

* Enclosure Dimensions: 230 x 300 x 82 mm (W x H x D)

* Status Indicators: LED (AC power, DC output, Battery status)

Key Features

* High-Efficiency Switched-Mode Technology: Provides stable voltage regulation with lower heat emission and energy consumption compared to traditional linear power supplies.

* Battery Deep Discharge Protection (UVP): Automatically disconnects the battery when its voltage drops below 9.5V, preventing permanent damage to the battery cells and extending their lifespan.

* Selectable Charging Current: Allows installers to optimize the charging speed based on the size of the connected battery (0.5A for 7Ah or 1.0A for 17Ah).

* Professional Metal Housing: The durable steel enclosure features integrated mounting holes and a microswitch for tamper detection, ensuring the power source remains secure from interference.

* Optical Signalization: External LED indicators provide immediate visual feedback on the power status, making it easy to diagnose mains failure or battery issues at a glance.