Altronix T1AXK3F2SD 24VDC Power Supply and Battery Charger

Overview

The Altronix T1AXK3F2SD is a 24VDC regulated power supply and battery charger unit designed for security integration applications requiring reliable DC power distribution with integrated battery backup capability. Built for professional installation environments, this unit delivers 6 amps of continuous output power to support multiple devices across access control, CCTV, and alarm system deployments. The T1AXK3F2SD combines primary power regulation with automatic battery charging functionality, eliminating the need for separate charging circuits in integrated security systems.

Key Features

• 24VDC Output at 6A Rating: Supplies regulated 24-volt direct current at up to 6 amperes, suitable for powering multiple security devices and control modules
• Integrated Battery Charger: Built-in charging circuit manages lead-acid or sealed battery backup without additional external components
• EFL (Electronic Fuse Logic): Provides electronic overcurrent protection with automatic reset, protecting connected equipment from transient surges and overload conditions
• PTC Thermal Protection: Positive Temperature Coefficient thermistor protection automatically limits current during thermal stress events, preventing component damage
• 115VAC Input: Standard North American AC mains voltage compatibility for direct wall outlet or panel-mount installation
• Dual-Function Design: Operates as both primary power supply and automatic battery charger, simplifying system architecture and reducing component count

Integration & Compatibility

The T1AXK3F2SD integrates seamlessly into Axis and legacy security infrastructure where 24VDC regulated power with battery charging is required. The combination of EFL and PTC protection ensures compatibility with sensitive control electronics in access control panels, intercom systems, and distributed CCTV power distribution applications. The unit supports standard lead-acid battery backup configurations without requiring external charging controllers, making it ideal for retrofit installations where space and component density are constraints.

Operational Characteristics

This power supply is engineered for continuous operation in security deployment environments. The 6-ampere rating provides sufficient capacity for multi-door access control systems, IP intercom stations, or small-to-medium CCTV camera clusters when used with appropriate load distribution. The integrated battery charger automatically maintains connected backup batteries in a charged state, ensuring that power is available during AC mains interruption without manual intervention or additional charging equipment.

Ted Perry

Perspective based on aggregated IP Security Depot and affiliated engineering team experience.

I've specified the Altronix T1AXK3F2SD on multiple integration projects where space constraints and simplified wiring were priorities. This unit's dual functionality—primary power supply and battery charger combined—reduces rack complexity and eliminates the need to source separate charging modules. For mid-scale access control or distributed IP intercom deployments, the 24VDC 6A output rating hits a practical sweet spot between capacity and form factor.

Technical Highlights:

• EFL + PTC Dual Protection: The combination of electronic fuse logic with PTC thermal protection provides both fast overcurrent response and temperature-based current limiting, protecting against both sustained faults and transient thermal stress.
• Integrated Charging: No external charger controller needed; the T1AXK3F2SD manages battery charging automatically, reducing BOM complexity and installation labor on battery backup circuits.
• 115VAC Compatibility: Standard single-phase AC input integrates directly into existing power infrastructure without special conditioning or isolation transformers.

Deployment Considerations:

• Confirm total device current draw before assignment; 6A is adequate for typical 8–16 door access control systems or small camera clusters, but high-density deployments may require load balancing across multiple units.
• Install the battery charger output in a controlled thermal environment; prolonged operation above standard room temperature may reduce charger efficiency and battery life.
• Use appropriate gauge wiring for the 24V output leg to minimize voltage drop over distance; integrators should verify wire sizing for installations exceeding 50 feet of run.

The T1AXK3F2SD is a reliable workhorse for integrators who need straightforward, space-efficient power and charging in one enclosure. Its proven protection topology and straightforward 24V output make it a sensible choice for mixed-device security systems where simplicity and reliability matter more than exotic features.